MALICIOUS — 66f900cdefb510f902eb68151dfe41ab16d75d4fb8dcb7b74d90bd7f26cfbc04
MALICIOUS — 66f900cdefb510f902eb68151dfe41ab16d75d4fb8dcb7b74d90bd7f26cfbc04 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Zusy family. 4 of 52 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
66f900cdefb510f902eb68151dfe41ab16d75d4fb8dcb7b74d90bd7f26cfbc04 - SHA-1:
914d78eebb35f2ec29ae74dce37ac742f1850a1f - MD5:
3e9a92bd69fce9a2dfe0bda3f69888e9 - imphash:
95122753ea27818b35f9b51859e4c692 - ssdeep:
49152:Qoa1taC070detCON4oalW/yqymQjfiL0Wxv:Qoa1taC01tAXqyxKL0Wxv - TLSH:
T1585A228552192B0CE6F6C4943869116EC481E8F7937C29CB52CFF16EB7CB827742129B - Submitted as: 66f900cdefb510f902eb68151dfe41ab16d75d4fb8dcb7b74d90bd7f26cfbc04
- File type: pe · Size: 1958408 bytes
- Verdict: malicious (98/100) · Family: Zusy
Detections (4 of 52 engines)
- ClamAV (daily): Win.Malware.Zusy-9764479-0
- Microsoft Defender: Trojan:Win32/Salgorea!pz
- Emsisoft (Emergency Kit): Dump:Generic.Dacic.17983.C83B492E
- Kaspersky (KVRT): Backdoor.Win32.Salgorea.ic
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 6 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule
Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95 - Dropped a malicious payload (Zusy): 2824.tmp - dynamic signal, weight 0.62, confidence 0.90
- Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 24 external host(s) at runtime (22 HTTP) - network signal, weight 0.40, confidence 0.80
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
98 behavior events · 2 ATT&CK techniques · 2 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
- 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
- settings-win.data.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\2824.tmp -
945a1481cd7267bf4b77193c7a11bced6e842c88cd9904da28d10a89325b83f8 - 2ffa0aea865f45000b1da3497b8a954949729185b2903da5cd9d32c40aa9e28e -
2ffa0aea865f45000b1da3497b8a954949729185b2903da5cd9d32c40aa9e28e
Embedded URLs
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- 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?P1=1787386194&P2=404&P3=2&P4=bu48Y2voxW7FPzba5D92dXEM99Q%2blJnEx28%2bnF6Efejl0da4u1bBguhapiAgFTszEkaoOxGXUNpTUN6QpDC3pg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- schemas.microsoft.com
Embedded IP addresses
- 20.76.201.171
- 52.168.112.66
- 4.230.171.124
- 85.210.196.11
- 74.178.240.61
- 20.42.179.192
- 20.231.239.246
- 52.178.17.2
- 92.223.78.30
- 52.230.59.222
- 52.123.252.195
- 135.234.160.246
- 135.233.95.135
- 203.26.79.13
- 162.159.36.2
- 52.148.114.188
- 20.236.44.162
- 20.42.65.93
- 52.123.128.14
- 135.233.95.80
- 72.153.5.132
- 52.123.252.239
- 52.110.12.24
- 52.110.12.52
File paths
- o:\Y,
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report