MALICIOUS — ff292b0f2c8eedd2f1b7ea6942f4f715f73bf7fed902416ed785b2df1b081f20
MALICIOUS — ff292b0f2c8eedd2f1b7ea6942f4f715f73bf7fed902416ed785b2df1b081f20 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (98/100), attributed to the Zusy family. 6 of 55 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
ff292b0f2c8eedd2f1b7ea6942f4f715f73bf7fed902416ed785b2df1b081f20 - SHA-1:
8e80b7248b08f60b404c678f65d956ecd6b15075 - MD5:
472c8c40de66e9fdb2175f414bf550f3 - imphash:
c9b6c3da312e87a7377bab0dcbaf2d4a - ssdeep:
24576:SypW9SgLNZaOdcTMuUvxIgz0eWNJP9RH24eZu3uB+3AQCC9z:St9SgLNZa6xI66JnH2bc+BSCC5 - TLSH:
T15754338469169EF7C55DB32CDAAC0B8DC9C328E2DCBE6CAB0D83BA7754506077230456 - Submitted as: ff292b0f2c8eedd2f1b7ea6942f4f715f73bf7fed902416ed785b2df1b081f20
- File type: pe · Size: 1108132 bytes
- Verdict: malicious (98/100) · Family: Zusy
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:
- ClamAV (daily): Win.Malware.Zusy-9781883-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:Microsoft Linker
- Microsoft Defender: Trojan:Win32/Salgorea.VRR!MTB
- Kaspersky (KVRT): Backdoor.Win32.Salgorea.id
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9781883-0 (rule
Win.Malware.Zusy-9781883-0) - 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 19 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: JPCERT/CC flagged JPCERT_HUILoader_PlugX_SideLoad (rule
JPCERT_HUILoader_PlugX_SideLoad) - engine signal, weight 0.35, confidence 0.70 - Detect It Easy (packer/type) flagged DIE:Microsoft Linker (rule
DIE:Microsoft Linker) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: high-entropy-sections:, Microsoft Linker - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
163 behavior events · 1 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
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\E3D8.tmp -
2bb1e2d5e5f7e67242722519b50fcc4f73ff1bb77a4654ca94c121d7e2fc5cb4 - cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 -
cdab9660cf25db7302b108a6c280b4af5d8f8d9271b48d554c3e76f34b7a51f2 - 7ccab8cf5f6fcdfa2f26c9b11ef7f1844370b1a7ec2833a4eea8fa724a5457f0 -
7ccab8cf5f6fcdfa2f26c9b11ef7f1844370b1a7ec2833a4eea8fa724a5457f0 - 6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 -
6d5688e8c2bc105ab282adf14dda5805c892867d9424bff40902386d98d8e0e2 - 9aea3925d2de4995ba9322fd3150beddb5b95d1e89f5ced63fe74eebc9cab7a2 -
9aea3925d2de4995ba9322fd3150beddb5b95d1e89f5ced63fe74eebc9cab7a2
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=1787857551&P2=404&P3=2&P4=K66%2fS8v2rphxpfliCP8yUG%2b6Wkzz7On7J1OZvqJG3zRF52TRcTGerSU07FXkecOD3nzUN6XcTU2JuY3zumSz5g%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- schemas.microsoft.com
Embedded IP addresses
- 20.42.73.27
- 52.123.252.195
- 20.42.179.192
- 4.230.171.124
- 20.247.185.124
- 135.232.92.137
- 135.232.92.97
- 52.168.117.169
- 74.178.76.128
- 20.231.239.246
- 52.123.129.14
- 162.159.142.9
- 203.26.79.13
- 135.233.45.221
- 72.154.7.100
- 74.178.76.44
- 52.148.114.188
- 52.110.12.1
- 52.110.12.32
More Zusy samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report