MALICIOUS — 55f8ae71aadddf5a03822c926755ea3c2db4ef82ad171d15d548642253c290d7
MALICIOUS — 55f8ae71aadddf5a03822c926755ea3c2db4ef82ad171d15d548642253c290d7 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (96/100), attributed to the Zusy family. 4 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
55f8ae71aadddf5a03822c926755ea3c2db4ef82ad171d15d548642253c290d7 - SHA-1:
cc30cc7dff5a8582a108a16514f719c557acc0a1 - MD5:
9637acd788f1fac6a0ecaac000e201ec - imphash:
95122753ea27818b35f9b51859e4c692 - ssdeep:
49152:OFUcx88PWPOpX0SFCTg9PeGcibSR68Xz9D2YoFOyGc:O+K88uPCH4g9mXibSR6Y9DfyGc - TLSH:
T1735A23D65A29970CE3F2C490280A376E8442F4D5967D48CE428FF02E73D7A6BB42119F - Submitted as: 55f8ae71aadddf5a03822c926755ea3c2db4ef82ad171d15d548642253c290d7
- File type: pe · Size: 2089472 bytes
- Verdict: malicious (96/100) · Family: Zusy
Detections (4 of 55 engines)
- ClamAV (daily): Win.Malware.Zusy-9764479-0
- Microsoft Defender: Trojan:Win32/Salgorea!pz
- Emsisoft (Emergency Kit): Trojan.GenericKDZ.110085
- Kaspersky (KVRT): Backdoor.Win32.Salgorea.ie
MITRE ATT&CK
Why this verdict
The malicious score of 96/100 is the fusion of 4 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9764479-0 (rule
Win.Malware.Zusy-9764479-0) - engine signal, weight 0.90, confidence 0.95 - 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 27 external host(s) at runtime (20 HTTP) - network signal, weight 0.40, confidence 0.80
Dynamic analysis (windows)
98 behavior events · 1 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
- outlook.cloud.microsoft
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\2F87.tmp -
bcf0346f755b47901ac7157ae27189e77c4291db90732c12743a8927fa8197ba - b4df0c09feed2101a9f608aee4abbe3536811953ab88277edcac85bd6d5e3ca6 -
b4df0c09feed2101a9f608aee4abbe3536811953ab88277edcac85bd6d5e3ca6
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/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787869569&P2=404&P3=2&P4=O4TX7MqD0KC74AgM1mMUrNS4GSSICKVCi7LunQQyaRmSuJ5XmT5tjmD6TCqXG5HLLWZsQMwx6RlIYFZ0DDvPcg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/c74a5353-3e6a-42b7-94d6-9b96c560c89a/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/c74a5353-3e6a-42b7-94d6-9b96c560c89a?P1=1787869597&P2=404&P3=2&P4=R%2fdvVpcQyzNFACpUgbmhrVUk9SQfWIlZmb3LDgy3u8xnuCgjgk4O3WMdCQQpTRGsWFJaO0uB%2bGCAfndsKfq06Q%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- 1s.gg
- schemas.microsoft.com
Embedded IP addresses
- 40.84.85.40
- 52.138.229.67
- 52.123.252.216
- 52.230.59.222
- 4.230.171.124
- 85.210.193.152
- 74.178.240.61
- 20.184.175.7
- 135.232.92.97
- 20.231.239.246
- 40.104.4.2
- 52.123.129.14
- 52.123.128.14
- 92.223.78.30
- 52.123.252.244
- 135.234.160.246
- 203.26.79.13
- 52.123.252.230
- 135.232.92.34
- 172.66.2.5
- 162.159.142.9
- 52.148.114.188
- 72.145.35.105
- 52.168.112.67
- 20.184.175.17
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report