MALICIOUS — mutated_18614.exe
MALICIOUS — mutated_18614.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (74/100), attributed to the Zusy family. 3 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
006770f03c77f2533ab3a4d3e4082980f852344801dce145e7905f6ae3326580 - SHA-1:
9ca446c6dd86dcbb5c555fcec8dc5e128d28a79d - MD5:
6db2458e02f83ed35fae553286a7efda - imphash:
542863a264e826bf130b0880664f67e4 - ssdeep:
98304:l7GpL4IFkDS1foMqv4Yop7IyoB+QBPDE7um:l7GpZ31foMqtB+QBPDED - TLSH:
T1E66A6C7071656487CFFA1630BCAE456E37B360202AB6D38C1386215391D26FF8A7C5E6 - Submitted as: mutated_18614.exe
- File type: pe · Size: 9807979 bytes
- Verdict: malicious (74/100) · Family: Zusy
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 malicious score of 74/100 is the fusion of 4 weighted signals:
- Dropped a suspicious payload (AntiDebug): mutated_7972.exe - dynamic signal, weight 0.40, confidence 0.90
- Contacted 27 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
Dynamic analysis (windows)
198 behavior events · 0 ATT&CK techniques · 5 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
- settings-win.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\mutated_7972.exe -
c69dc4e6f95508a093fd4dbf76c6c45031089af74365bee5ae40aed8be96fee8 - C:\Users\analyst\AppData\Local\Temp\mutated_13453.exe -
d74e9395a44843beefc685b6af475ce2069e60960d4d1dc2bf6bd58b27b9e5f8 - C:\Users\analyst\AppData\Local\Temp\mutated_19915.exe -
3fb845ec7edf8d2a4addfc4d62e32c95e400afd3801232c1e4155f7eacbd1650 - C:\Users\analyst\AppData\Local\Temp\mutated_6800.exe -
f4da4e6afd17877dd234248b20177eb5637ec8264c3e5e76b0ff1fc0668605c7 - C:\Users\analyst\AppData\Local\Temp\mutated_20107.exe -
e39e27cff74ddc9249c5a4510c4ec461360b23554ae42cc3b1fc767f2370652b
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=1787651395&P2=404&P3=2&P4=AIWILYR8R2YaaEDupF1U%2bwSxwzF1L%2bgH9Q5pLQnI5XNgPP8rOXJKKiaaGIgY5JE3Dz9eo3USICZMu49ZzeXnaQ%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- gcc.gnu.org
Embedded IP addresses
- 35.201.112.186
- 34.8.38.243
- 34.117.162.98
- 35.186.224.24
- 52.123.252.232
- 20.42.73.27
- 48.211.4.16
- 20.247.185.124
- 4.230.171.124
- 20.165.94.63
- 135.232.92.97
- 20.42.73.26
- 135.233.95.144
- 52.182.141.63
- 20.76.201.171
- 40.103.64.226
- 52.123.129.14
- 172.178.240.162
- 135.234.160.244
- 203.26.79.13
- 52.110.12.55
- 52.110.12.2
- 72.153.5.135
- 135.232.92.34
- 52.148.114.188
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