SUSPICIOUS — mutated_32105.exe
SUSPICIOUS — mutated_32105.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (64/100), attributed to the AntiDebug family. 3 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
3b64dbb35dcda55d7eb6dd8c81a5d24f134d892e28c735e0b4370ba955018615 - SHA-1:
ab9d75e629b12a0c667d5ed2c49df06434f29338 - MD5:
54d1837e596421fa0c6b88e856024b60 - imphash:
542863a264e826bf130b0880664f67e4 - ssdeep:
98304:17GpL4IFkDS1foMqv4Yop7IyoB+QBPDE7us:17GpZ31foMqtB+QBPDEV - TLSH:
T1176A6C7071656487CFFA1630BCAE456E37B360202AB6D38C1386215391D26FF8A7C5E6 - Submitted as: mutated_32105.exe
- File type: pe · Size: 9807979 bytes
- Verdict: suspicious (64/100) · Family: AntiDebug
Detections (3 of 55 engines)
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Microsoft Defender: Trojan:Win32/Zusy.KK!MTB
- Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.pef
MITRE ATT&CK
Why this verdict
The suspicious score of 64/100 is the fusion of 4 weighted signals:
- Contacted 21 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: https://gcc.gnu.org/bugs/ - static signal, weight 0.35, confidence 0.60
- Dropped 4 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
176 behavior events · 0 ATT&CK techniques · 4 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\mutated_21680.exe -
600a8834de44378a1ddbea8152d22b2cba9497a35443f438296bf3d452767341 - C:\Users\analyst\AppData\Local\Temp\mutated_25016.exe -
431f5c30eeef7aa722efa92beab817f5ff04e4e6239444ad3c7f46e94a3872c8 - C:\Users\analyst\AppData\Local\Temp\mutated_5556.exe -
81d4c7d3999b335ddddaab8a27bc833867c6eef7a17a96ded980a2bed7192daf - C:\Users\analyst\AppData\Local\Temp\mutated_27703.exe -
34912e416f398d4d8df48769feee68a47aacabc67b0507def319e0f21f6acc41
Embedded URLs
- https://gcc.gnu.org/bugs/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787675583&P2=404&P3=2&P4=I0zzo5HmInOPzuFJFQqCyUm6yePm51hiZ4L1%2fN1mRsReA3xxhAijM2gwZotU2Kto2ce8MyJSJbwRa7SLcaKglg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- gcc.gnu.org
Embedded IP addresses
- 52.123.252.203
- 51.116.246.104
- 4.230.171.124
- 40.84.97.4
- 4.144.132.114
- 20.165.94.63
- 135.232.92.97
- 4.207.44.66
- 92.223.78.30
- 20.76.201.171
- 40.104.4.2
- 40.99.133.226
- 52.123.128.14
- 162.159.142.9
- 135.233.45.222
- 203.26.79.13
- 20.165.94.46
- 52.148.114.188
- 52.110.12.55
- 52.110.12.2
- 72.154.7.103
File paths
- X:\:`:d:h:l:p:t:x:
- X:\:h:l:p:
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report