MALICIOUS — 77855689c08b5250db047a6f8db53f629a6535c1c758fa0fbc74f34c6b78e1ef
MALICIOUS — 77855689c08b5250db047a6f8db53f629a6535c1c758fa0fbc74f34c6b78e1ef 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:
77855689c08b5250db047a6f8db53f629a6535c1c758fa0fbc74f34c6b78e1ef - SHA-1:
b136efe2c163955f3249325e645c58f8f00f3085 - MD5:
a55931e9b7aa312480e35ee0157dc428 - imphash:
95122753ea27818b35f9b51859e4c692 - ssdeep:
49152:OFUcx88PWPOpX0SFzF9lyPF9qJWxtAXMSgv0apCyGc:O+K88uPCHJyF9qCA8SU0mCyGc - TLSH:
T1FB5A23959A198F09E3F7C551282A366E8441F4D687BC08CA128FF02E73DB5B778311A7 - Submitted as: 77855689c08b5250db047a6f8db53f629a6535c1c758fa0fbc74f34c6b78e1ef
- 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 29 external host(s) at runtime (28 HTTP) - network signal, weight 0.40, confidence 0.80
Dynamic analysis (windows)
99 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
- desktop-hsgcbep
- config.edge.skype.com
- v20.events.data.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- licensing.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\A29F.tmp -
a3ef81e04a6ba1001adc1bde3d775c3b3e5258e22029ed1cf65888553a77a4e2 - 73330b4d7df68317d8cc393285173dd242a371a4a826d7baff2d09926fa53590 -
73330b4d7df68317d8cc393285173dd242a371a4a826d7baff2d09926fa53590
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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787891448&P2=404&P3=2&P4=M7CD2uJGdUGOSpeOmrLt6v585mDg5Ui37ImF7Gg1zfpkvU2gHnXz8MQGj0zTGXthYo5F6pfNHWYAU6Q32ZStbw%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=1787891489&P2=404&P3=2&P4=ae2Kj9zIBfVL2N3afE91m0i3%2buXDkEFi4GB9mKpa7uohR%2brZuuCQa6bEmDlBhCoMoxagNcYBfj40yM38e%2fNZDw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/9c0462dd-f6cd-4ff7-a7ac-708d0e9dadc5?P1=1787288252&P2=404&P3=2&P4=CKjOZAYAuGyjMpfJQZCHuWGDDpMcamioDIY5FHiZny0yZQnBz4A%2b187PSj6%2b1JEF3TPwvwUPKAOjebAYgRNkeQ%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice//files/b56480f9-8215-4de7-ba7e-8e690088d21d/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/b56480f9-8215-4de7-ba7e-8e690088d21d?P1=1787287809&P2=404&P3=2&P4=lnqtWWRSBOkR0h750PCOcj3oiw8IHoEJYbETDKmH%2fd6%2bhd%2bw%2fnBJnX4YeWm26I96nvxmcZ7uGY0Cki9gxmNdWA%3d%3d&cacheHostOrigin=1D.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- bn.tk
- schemas.microsoft.com
Embedded IP addresses
- 52.168.117.170
- 20.247.184.197
- 4.230.171.124
- 172.215.188.232
- 52.230.59.222
- 135.232.92.34
- 20.165.94.63
- 74.178.240.51
- 51.105.71.137
- 203.26.79.13
- 20.231.239.246
- 52.123.128.14
- 52.123.129.14
- 40.79.141.155
- 135.234.160.246
- 92.223.78.30
- 52.110.12.45
- 52.110.12.51
- 52.148.114.188
- 72.153.5.60
- 20.184.175.21
- 172.175.111.170
- 57.154.63.210
- 4.247.188.224
- 4.150.223.113
File paths
- r:\kv
More Zusy samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report