MALICIOUS — a92bde3e6cad9e8d0da9c72504f5c182933ad6fea1022821ea54d9f2e2ed34e1
MALICIOUS — a92bde3e6cad9e8d0da9c72504f5c182933ad6fea1022821ea54d9f2e2ed34e1 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:
a92bde3e6cad9e8d0da9c72504f5c182933ad6fea1022821ea54d9f2e2ed34e1 - SHA-1:
260f8e310910dd855e1a59be7745836259b58cd8 - MD5:
0fcc82c4dd52239df1f7cbf88bd4634f - imphash:
c9b6c3da312e87a7377bab0dcbaf2d4a - ssdeep:
24576:e9dG37Vk0R07Qanm9TB7UmhFH6kJOgWjNZezUxMA//8xPrhpFVzPdP:lrq0R07QQmQSaKWj8UxPH8xDXdP - TLSH:
T1DD57338212BD7899C313BA4D55246E8F5E4708D364AE9A99AE1DBE13D0A0C5F1C1FC83 - Submitted as: a92bde3e6cad9e8d0da9c72504f5c182933ad6fea1022821ea54d9f2e2ed34e1
- File type: pe · Size: 1604260 bytes
- Verdict: malicious (98/100) · Family: Zusy
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:
- ClamAV (daily): Win.Packed.Zusy-9645559-0
- 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.ck
MITRE ATT&CK
Why this verdict
The malicious score of 98/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Packed.Zusy-9645559-0 (rule
Win.Packed.Zusy-9645559-0) - 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 20 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\ECB1.tmp -
f69f5c5737b6fad7408a8f53a8ca44f661e35ac3f19d22da5d061deef8a8408f - 312475759ff8deca759f4ce4f9eaafd85cdacb7d1849262258267189087f7e25 -
312475759ff8deca759f4ce4f9eaafd85cdacb7d1849262258267189087f7e25 - 17bc7de29cf5e0e1d5f080378a70e7fbc6ff6b1507023d226ded505daf8654e5 -
17bc7de29cf5e0e1d5f080378a70e7fbc6ff6b1507023d226ded505daf8654e5 - cf2d00b69cb1edc3fe20ce22bff0b09aaf25fa35f14c85ccffca11da0cb692a5 -
cf2d00b69cb1edc3fe20ce22bff0b09aaf25fa35f14c85ccffca11da0cb692a5 - 4573ce764a936d5477e5efabaeb3008f0b6e00b0b5f0c5f391235049b2e82c3b -
4573ce764a936d5477e5efabaeb3008f0b6e00b0b5f0c5f391235049b2e82c3b
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=1787880401&P2=404&P3=2&P4=PAEBu1dQOevBJT%2faIVLnjzTGIccem%2fy4LWA2qrnoSqWcOhe6gC2epQD%2bY15F%2fzUngV7Ske18nJO4o154S8i1ag%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- 5.fr
- schemas.microsoft.com
Embedded IP addresses
- 52.168.117.171
- 52.123.252.213
- 48.211.4.16
- 4.230.171.124
- 52.230.59.222
- 74.178.76.128
- 4.150.223.113
- 74.178.240.51
- 52.123.128.14
- 20.236.44.162
- 40.99.134.2
- 52.123.129.14
- 4.150.223.107
- 135.233.45.222
- 203.26.79.13
- 72.145.35.102
- 74.179.71.159
- 52.148.114.188
- 52.110.12.21
- 52.110.12.38
More Zusy samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report