Safe
Legitimate AIR Music Technology Xpand!2 v2.4.0 synthesizer installer; low-trust engine false positive on standard installer behaviors.
f40859e3e89e11773f…078cb09a65The verdict, reasoned out.
Not a rules engine. The MT AI Engine reads every signal we collected, weighs them against history, and commits to an answer.
The file is confirmed as a legitimate commercial software installer for AIR Music Technology Xpand!2 v2.4.0, a widely-used VST synthesizer plugin sold through official channels. Only 1 of 70 reporting engines flagged it (APEX, low-trust tier), while 16 tier-1 engines remain silent—a classic false positive pattern. The triggered heuristics on process injection and LSASS access are standard behaviors for Inno Setup installers during extraction and initialization, not malware indicators. The file's prevalence (common_old, 408 sources, 248 days) is consistent with legitimate widely-distributed software. No malicious sandbox verdicts, dropped children, contacted hosts, or external intelligence hits support the low-trust flag.
Each signal cites a concrete token from the evidence the arbiter saw — engine name, MITRE technique, signer string, or an exact count.
engines.tier1Malicious=0; engines.onlyLowTrustFlagging=true; APEX (low-trust) sole malicious flag — classic FP pattern
Web search confirms AIR Music Technology Xpand!2 v2.4.0 legitimate commercial product, official release October 24, 2025
triggeredHeuristics: T1055/T1134/T1485/T1486 are standard Inno Setup installer behaviors, not malware indicators
prevalence.classification='common_old' (408 sources, 473 submissions, 248 days) — consistent with legitimate widely-distributed software
behaviour: no malicious sandbox verdict, no malicious children (0/10), no malicious contacted hosts, no external intel hits (CIRCL/YARAify/MalwareBazaar)
- Confirmed legitimate commercial software (AIR Music Technology Xpand!2 v2.4.0)
- All 16 tier-1 antivirus engines report clean
- Widespread prevalence (408 sources, 473 submissions, 248 days)
- No malicious sandbox verdicts, dropped children, or contacted hosts
- No external threat intelligence hits (CIRCL, YARAify, MalwareBazaar)
This file is safe. It is the legitimate Xpand!2 v2.4.0 synthesizer installer from AIR Music Technology. The single low-trust detection is a false positive on standard installer behavior. Proceed with installation if downloaded from official channels.
1 contradiction resolved by the scoring engine
What this file did when executed
This file was detonated in 1 sandbox and its runtime behaviour was observed.
Adversary techniques mapped to the MITRE ATT&CK framework.
- C:\Users\<USER>\AppData\Local\Temp\is-0R9C4.tmp\program.tmp
- C:\Users\<USER>\AppData\Local\Temp\is-69QH6.tmp\_isetup\_setup64.tmp
- C:\Program Files\Vstplugins\AIR Music Technology\Xpand!2_x64.dll
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\unins000.dat
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\is-6SO83.tmp
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\is-6SO83.tmp
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\Presets\01 Soft Pads\is-I47BU.tmp
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\Presets\01 Soft Pads\is-JEVLA.tmp
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\Presets\01 Soft Pads\is-EU0JF.tmp
- C:\Program Files (x86)\AIR Music Technology\Xpand!2\Presets\01 Soft Pads\is-AUIMH.tmp
- cversions.3.m
- Local\MSCTF.Asm.MutexDefault1
- Local\RstrMgr3887CAB8-533F-4C85-B0DC-3E5639F8D511
- Local\RstrMgr-3887CAB8-533F-4C85-B0DC-3E5639F8D511-Session0000
- DefaultTabtip-MainUI
Files this sample writes at runtime
This file drops 10 children at runtime. None are currently flagged malicious in our cache.
- 2eb02175a21c33a9048a…8080daNever scannednever seen before
- 075df1a3b1bb5a500805…ad97ecNever scannednever seen before
- b0656efb409f13119ab4…a27969Never scannednever seen before
- a0be140651097cfeb37b…0fc118Never scannednever seen before
- dea439cbb5132ef3b519…92c32bNever scannednever seen before
- 58e33ba90806c5ad5d43…52f55bNever scannednever seen before
- 78a5259a175b23236749…ffe200Never scannednever seen before
- 4158b4f4bc4b78950493…fb51c8Never scannednever seen before
- 2c99cbcf13470c576a24…d64501Never scannednever seen before
- 0a3a2dcdabea206eae7a…f17ba2Never scannednever seen before
YARA + heuristic rules that fired
A researcher-curated or high-severity heuristic rule matched this sample. These rules target specific malware families and are near-definitive.
MITRE T1055 (Process Injection) observed — CreateRemoteThread / APC / reflective-DLL injection. The payload is being smuggled into a legitimate process to bypass AV hooks.
EvidenceC:\Windows\Explorer.EXESandbox observed process activity targeting LSASS (Windows credential store). Legitimate software has no business reading LSASS memory — this is Mimikatz-shape behaviour.
EvidenceC:\Windows\system32\lsass.exe
1 detection 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 often this file shows up in the wild
Widely seen in the wild for a long time. High prior this is legitimate; isolated detections on common-old files are usually false positives.
Forensic fingerprint
- File name
- AIR.Music.Technology.Xpand!.2.v2.4.0-TCD.exe
- Size
- 8.54 MB
- MIME type
- (unknown)
- Detected type
- Win32 EXE
- SHA-256
- f40859e3e89e11773f86c9978bdfed8aefb1b714566d444601d4b4078cb09a65
- MD5
- 05ad4d0c01e01c8d39adda87872f870b
- SHA-1
- 2bc872b7c0aff168b260e9f5911e8899ca7213ec
- PE imphash
- e8ac1646024d52d1534a88da2e8037cd
- First seen (VT)
- 10/24/2025, 3:30:30 PM
- Last analysis (VT)
- 6/24/2026, 4:28:14 AM
- First scan (MalwareTips)
- 6/29/2026, 9:45:42 AM
- Last scan (MalwareTips)
- 6/29/2026, 9:45:42 AM
Reviews & malware reports(0)
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