General
- Target femto_Master_v1.73.zip
- Size 3.4MB
- Sample260909-albx9azdqa
- SHA256 a70f439926af6986543fa82ed20cd3e924b45371568b8be5b0d0a5fe546269ae
- MD5 fec4cf753734ffd0005b037471eba7c2
- SHA1 57ddde5334381e8d5bd6f2c8db76890f5c4d1934
- SHA512 254cc39c83ee919d717863bd596b2fe37fe645a67791087afbf1e65957570d2ddf300e3f04279b405c3280a73f07280dfe715ff954b4227fda1e751d945ce4fc
- SSDEEP 98304:MaQ0msWUTR8o16yXoZ/ey9y2sSNsFj9kag+o:MaVBn1KZp0ssDkag5
- TLSH T1A1F53358BE29343DCB58E7B38DE8579A2375DAD0AC0314497DEC8A8759A4C31B34EB07
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Behavioral task
behavioral1
Sample
femto.Runtime.dll
Resource
win10v2004-20260513-en
0 signatures
150 seconds
Behavioral task
behavioral2
Sample
femto.Runtime.dll
Resource
win11ltsc2024-20260709-en
0 signatures
150 seconds
Behavioral task
behavioral3
Sample
femto.exe
Resource
win10v2004-20260513-en
8 signatures
150 seconds
Behavioral task
behavioral4
Sample
femto.exe
Resource
win11ltsc2024-20260709-en
8 signatures
150 seconds
Malware Config
Targets
-
- Target femto.Runtime.dll
- Size 163KB
- SHA256 6ec5c76fca2d5b159a8f25088562bf022bd59651dfab0085f0220f19b03c2db3
- MD5 6d1667427cd7f50e843c950ad918f6ed
- SHA1 6281cd02189fd3c647ce610e7f5a1799fbddca43
- SHA512 7dfbd687b9f54ad02eaa12c13da6adf79b5a801afdb7cf0cf54ac72f51b317be2b16bc4e0c3d48f76a35b054c326b2a5acfc53e0dabf5ce2c6cf5a48de4baa28
- SSDEEP 3072:WygHHYDiAPph6BCfCJ9FzgOCCGCFQsjebQGb8W+z:ZgnMiAPp8BY4sExebxbg
- TLSH T1D7F3A69C07BE4BA1CA89217C05939121D3F45A722B06FAE61FC359E1FDA77C2BC411A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Score1/10 -
- Target femto.exe
- Size 4.2MB
- SHA256 fbd2d3485c44788c1170ca9ba73a3b1d4e6c0323039c66c22d132c38aa0aace3
- MD5 9522970fa0a7106c7bfa7f4ed42adf38
- SHA1 4fae01b2152b76901c1727482cc72d107c1c7305
- SHA512 f5f980382f391de977d9f90b30a80eef7c2d1b9b36ae61d3431305076ccee8c534ca79885ab30ca471b6afaac501ab536c41f72aa844749c5ad9790dc44fa59d
- SSDEEP 98304:nN+qc25m7Cd0R4g+DSWxfLhJl72DuBRDjh7ZrSZ8h5uXABjaH2Yts3l2WCS8sBcM:notXERTn7suYRcMGoApid5kIlf
- TLSH T1BE16025776844C9DEFF94230F0D0A73DC3F43642B6EA985F1E9D2A4A55A1A84BE3408F
- MD5 SHA1 SHA512 SSDEEP TLSH
Score9/10-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
-
Loads dropped DLL
-
Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Suspicious use of NtSetInformationThreadHideFromDebugger