Safe
Signed by Open Text Corporation with zero engine detections and matching prior safe signer samples.
c293be03ca5ca82e1a…e9f9fe1b10The reasoning behind this verdict
The MT AI Engine weighs every signal from this scan — antivirus detections, sandbox behaviour, code signing, prevalence and historical matches — to reach a single, evidence-based verdict.
The complete absence of malicious engine detections combined with verified signing by Open Text Corporation and three matching safe RAG verdicts on the same signer strongly supports a benign classification. The single triggered heuristic on direct-IP contact lacks any corroborating malicious signals such as tier-1 consensus, sandbox verdicts, or known-bad hosts. Prevalence is low but the signing and behavioural profile outweigh the rarity concern.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
engines: 0 malicious out of 74 total (tier1Malicious=0)
signing.verified=true, signer='Open Text Corporation'
similarHashes[0].verdict=safe (matchKind=signer, reasonCode=ai:benign_signed_installer)
behaviour.hasMaliciousSandboxVerdict=false, contactedHosts.maliciousHosts.length=0
triggeredHeuristics[0].rule=MalwareTips.Synth.DirectIpC2 on IP 162.159.36.2
- 0/74 malicious engine detections
- verified signature by Open Text Corporation
- 3 prior safe verdicts on same signer
- no malicious sandbox verdicts or dropped children
- rare_new prevalence (single submission)
- direct-IP contact without DNS (MalwareTips.Synth.DirectIpC2)
Treat as safe for normal use; the signing, clean engine results, and matching RAG history outweigh the isolated heuristic and low prevalence.
What to do now
This file looks safe based on everything we checked.
This file is safe to use.
Good habit: only download files from the official website or an app store.
Keep your antivirus and Windows updates switched on so you stay protected.
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
- 162.159.36.2
YARA & heuristic rule matches
One or more medium-severity heuristic rules matched. Not definitive, but the patterns match known malware behaviour.
Sample contacted 1 external IP address(es) and zero domains. Benign software virtually always uses DNS; no-DNS direct-IP C2 is a strong malware indicator because it bypasses reputation systems and dodges domain-based blocklists.
Evidence162.159.36.2
0 detections across 74 engines
Section entropy & packers
Section-level entropy and packer detection from the PE header. Nothing suspicious here — entropy is within the normal range for unpacked code.
How widely this file has been seen
Barely seen in the wild and first surfaced recently. This is the footprint of targeted malware the AV industry hasn't signatured yet — extra scrutiny is warranted.
Forensic fingerprint
- File name
- MailStoreMapiClient_x64.exe
- Size
- 3.05 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- c293be03ca5ca82e1afaee9b24f3b95a32f050e47a038a7afe56ece9f9fe1b10
- MD5
- d5e5f6e5c00a36aa4e05f86dbbb0adcb
- SHA-1
- 482a7a7b6b35b1468da97ed67732d63108fad038
- PE imphash
- 3023b72b68cf9669bfb72b9a4ab21ac7
- First seen (VT)
- 7/8/2026, 11:22:27 AM
- Last analysis (VT)
- 7/15/2026, 11:23:02 AM
- First scan (MalwareTips)
- 7/17/2026, 11:39:17 PM
- Last scan (MalwareTips)
- 7/17/2026, 11:39:17 PM
- Code signer
- Open Text Corporationverified
Safety FAQ
Common questions about MailStoreMapiClient_x64.exe, answered from the scan data above.
- MailStoreMapiClient_x64.exe appears safe. 74 of 74 antivirus engines report it clean. It carries a verified digital signature from Open Text Corporation. As a habit, only run files you downloaded from the official source, since attackers sometimes distribute trojanised copies of legitimate software under the same name.
- MailStoreMapiClient_x64.exe is a Windows executable program, about 3.1 MB. Our analysis found no threat indicators for it. It carries a verified digital signature from Open Text Corporation. A file's name can be reused by different files, so we identify it by its cryptographic hash (below).
- None — all 74 antivirus engines we queried report MailStoreMapiClient_x64.exe as clean. That's reassuring, though brand-new malware can briefly evade detection before vendors add signatures, so we also weigh the file's behaviour and reputation.
- Yes — MailStoreMapiClient_x64.exe carries a valid digital signature from Open Text Corporation, which confirms the file hasn't been tampered with since that publisher signed it. A valid signature is a positive signal, but note that malware is occasionally signed with stolen or abused certificates, so it isn't proof of safety on its own.
- The SHA-256 hash of MailStoreMapiClient_x64.exe is c293be03ca5ca82e1afaee9b24f3b95a32f050e47a038a7afe56ece9f9fe1b10, and its MD5 is d5e5f6e5c00a36aa4e05f86dbbb0adcb. This hash is the file's unique fingerprint — two files with the same SHA-256 are identical. Use it to confirm you're looking at exactly this file (not just one with the same name) when comparing against antivirus databases or a download's published checksum.
- Based on this scan, yes — MailStoreMapiClient_x64.exe shows no threat indicators and is properly signed. The important caveat is source: make sure you downloaded it from the official website or a trusted store, because attackers sometimes distribute malware-laced copies under a legitimate file's name. If your own antivirus flags it while we report it clean, that is most often a false positive, but verify the source before overriding your antivirus.
- This report reflects the scan run on July 17, 2026. Because a file's hash never changes, the identity of MailStoreMapiClient_x64.exe is fixed — but antivirus coverage improves over time, so a file that looks clean today can pick up detections later (and vice-versa). If you need the latest picture, MalwareTips staff can re-run the analysis from scratch.
Reviews & malware reports(0)
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