MALICIOUS — 798b71eb1f5363893dbeb2ae8d8a7ef9a44d71a1cbe74d54c17e3fa9488d5c38
MALICIOUS — 798b71eb1f5363893dbeb2ae8d8a7ef9a44d71a1cbe74d54c17e3fa9488d5c38 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (100/100), attributed to the Amhfbyrbndc family. 8 of 52 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
798b71eb1f5363893dbeb2ae8d8a7ef9a44d71a1cbe74d54c17e3fa9488d5c38 - SHA-1:
e218c5040d9a9d61458bab90b19ade0045fc90d0 - MD5:
af8a1e7a0bfc889366b67d305aff9f22 - imphash:
0c75723fedd9c27bef321a9d944591c8 - ssdeep:
384:fo9q5pG7Vbjz0QhuvmtSh/6kTMklKBcdDtI7JliSwlmerfVjuujQA+CJw2m:GqDSbP0w+mFko/B8I7JUSiVfVyLA+Kg - TLSH:
T1E12CC06D02E095FDDBFF806914066B5F18D2F13C7A12C9582D247AA65CD8AF374D2C11 - Submitted as: 798b71eb1f5363893dbeb2ae8d8a7ef9a44d71a1cbe74d54c17e3fa9488d5c38
- File type: pe · Size: 24881 bytes
- Verdict: malicious (100/100) · Family: Amhfbyrbndc
Detections (8 of 52 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Amhfbyrbndc-9891058-0
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- Detect It Easy (packer/type): DIE:UPX 3.91
- Microsoft Defender: Trojan:Win32/Androm!pz
- Emsisoft (Emergency Kit): Gen:Trojan.Heur.D.bmIfbyRbNDc
- Trellix Stinger (McAfee): Agent-FQY!AF8A1E7A0BFC
- Kaspersky (KVRT): HEUR:Trojan.Win32.Agent.gen
MITRE ATT&CK
Why this verdict
The malicious score of 100/100 is the fusion of 14 weighted signals:
- ClamAV (daily) flagged Win.Malware.Amhfbyrbndc-9891058-0 (rule
Win.Malware.Amhfbyrbndc-9891058-0) - engine signal, weight 0.90, confidence 0.95 - Memory forensics: 7 finding(s), e.g. RWX/private injected region in taskhostw.exe (pid 7608) (rule
windows.malfind.Malfind) - memory signal, weight 0.60, confidence 0.85 - Microsoft Defender flagged Trojan:Win32/Androm!pz (rule
Trojan:Win32/Androm!pz) - engine signal, weight 0.55, confidence 0.85 - Emsisoft (Emergency Kit) flagged Gen:Trojan.Heur.D.bmIfbyRbNDc (rule
Gen:Trojan.Heur.D.bmIfbyRbNDc) - engine signal, weight 0.55, confidence 0.85 - Trellix Stinger (McAfee) flagged Agent-FQY!AF8A1E7A0BFC (rule
Agent-FQY!AF8A1E7A0BFC) - engine signal, weight 0.55, confidence 0.85 - Kaspersky (KVRT) flagged HEUR:Trojan.Win32.Agent.gen (rule
HEUR:Trojan.Win32.Agent.gen) - engine signal, weight 0.55, confidence 0.85 - 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 56 external host(s) at runtime (25 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:UPX 3.91 (rule
DIE:UPX 3.91) - engine signal, weight 0.35, confidence 0.70 - communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - Packing/obfuscation: UPX, high-entropy-sections:UPX1, UPX 3.91 - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
275 behavior events · 2 ATT&CK techniques · 2 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- test.besthotel360.com
- 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
- licensing.mp.microsoft.com
- msedge.api.cdp.microsoft.com
- windows.msn.com
Dropped files
- /opt/CAPEv2/storage/analyses/27101/files/97ff3fa5b30b2d10b71a33566449212ccaec92c74d3809f7efc648a7dd9b7e58 -
97ff3fa5b30b2d10b71a33566449212ccaec92c74d3809f7efc648a7dd9b7e58 - 37e69aeb371068ed0026f7a0489a7968986bd0f73cbfa29092c22d52bf8ba144 -
37e69aeb371068ed0026f7a0489a7968986bd0f73cbfa29092c22d52bf8ba144
Embedded URLs
- 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/1d8d0488-0a3b-440b-b2a9-36df2b9d4ebd/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/1d8d0488-0a3b-440b-b2a9-36df2b9d4ebd?P1=1786981120&P2=404&P3=2&P4=VbKiRSQSZqsCUsP%2b58vUIgasbZLOQD2Pk0D7BVwhijJ45xd6dcBLkj90ZMnaaZ1A3iRtk7mcwqNKpQS6M0sBbA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- test.besthotel360.com
Embedded IP addresses
- 149.154.167.99
- 4.150.223.97
- 20.247.184.142
- 4.230.171.124
- 72.145.35.115
- 20.42.179.192
- 135.232.92.137
- 51.105.71.137
- 20.112.250.133
- 149.154.164.24
- 4.247.188.224
- 20.231.239.246
- 92.223.78.30
- 162.159.142.9
- 172.178.240.162
- 72.145.35.112
- 172.215.188.225
- 57.150.192.97
- 135.233.45.222
- 135.234.160.245
- 135.233.95.135
- 104.46.162.230
- 172.178.240.161
- 74.178.76.44
- 52.123.129.14
More Amhfbyrbndc samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report