MALICIOUS — virussign.com_99674eb75b8dfb33e80b940d0e947b30.vir
MALICIOUS — virussign.com_99674eb75b8dfb33e80b940d0e947b30.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Zbot family. 8 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
8e108830eb08f96c52549dca024c65c6608ab9f234ba634e6b703b5cda109df0 - SHA-1:
9e37216ac4496018174d57bf516a656f5c284155 - MD5:
99674eb75b8dfb33e80b940d0e947b30 - imphash:
cdad71f00be06ad1b130e995c45f78b1 - ssdeep:
196608:EQpZixqn/o1KfmmpLyHgj0B6cwlLAK9ZIXyBWe:EEZ+qn/o1otYmQkARi - TLSH:
T12A6902AD110B167FD3F3A5501D58ACDC87E3B088A4BA9A18D403C41BB2E1EF7996D079 - Submitted as: virussign.com_99674eb75b8dfb33e80b940d0e947b30.vir
- File type: pe · Size: 8391901 bytes
- Verdict: malicious (99/100) · Family: Zbot
Source: VirusSign · first seen 2026-08-18T00:00:00.000Z · SHA-256 verified
Detections (8 of 55 engines)
- capa (capabilities): capability:execution/powershell
- MalwareAnalyser heuristics (entropy/packer): high-entropy-sections:.text
- ClamAV (daily): Win.Spyware.Zbot-1282
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: MalwareAnalyser community pack: TL_UPX_Packed
- YARA: Yara-Rules community: YR_AntiDebug_Checks
- Microsoft Defender: Trojan:Win32/Fareit!pz
- Kaspersky (KVRT): Trojan.Win32.VB.dosq
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 12 weighted signals:
- ClamAV (daily) flagged Win.Spyware.Zbot-1282 (rule
Win.Spyware.Zbot-1282) - engine signal, weight 0.90, confidence 0.95 - execute via PowerShell (rule
execute via PowerShell) - capa signal, weight 0.40, confidence 0.80 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 31 external host(s) at runtime (24 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 - YARA: MalwareAnalyser community pack flagged TL_UPX_Packed (rule
TL_UPX_Packed) - engine signal, weight 0.35, confidence 0.70 - YARA: Yara-Rules community flagged YR_AntiDebug_Checks (rule
YR_AntiDebug_Checks) - engine signal, weight 0.35, confidence 0.70 - persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60 - Embedded network infrastructure: http://purl.org/dc/elements/1.1/, http://www.iec.ch, https://superuser.com/a/1648105 - static signal, weight 0.35, confidence 0.60
- Packing/obfuscation: high-entropy-sections:.text - static signal, weight 0.25, confidence 0.55
- enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - Extracted generic config (1 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
18513 behavior events · 0 ATT&CK techniques · 0 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
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
Embedded URLs
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/photoshop/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
- http://ns.adobe.com/xap/1.0/sType/Resou
- http://www.iec.ch
- https://superuser.com/a/1648105
- 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=1787744249&P2=404&P3=2&P4=YK8LEIqCxaIKh7S6sCQ3fNruqljU2kiW5D8U9%2bGMN1AT%2fSxQqbIus8a8J7kHTGYJEpsr%2fRJWq7ncFKL%2fdgPJIw%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=1787744298&P2=404&P3=2&P4=JrIAONX2vKkpVuVO6Bu7t6WFWebqqc%2b6mjnsXHQbnEUy21rZ26zaGlUoSBe4qxCet3B4E%2b233K9yKPEUYdpaAg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- ns.adobe.com
- www.w3.org
- purl.org
- www.iec.ch
- superuser.com
- u4.sh
- schemas.microsoft.com
- pool.hashvault.pro
- j.au
- 7k.mx
- discord.gg
- webrat.site
- t.me
Embedded IP addresses
- 106.42.73.61
- 135.233.95.80
- 57.155.104.224
- 40.74.98.196
- 52.123.252.223
- 52.123.252.203
- 20.247.184.142
- 4.230.171.124
- 20.42.179.192
- 52.110.12.25
- 52.110.12.21
- 74.178.240.61
- 52.168.117.174
- 135.232.92.97
- 203.26.79.13
- 20.236.44.162
- 52.123.129.14
- 13.69.116.105
- 52.123.252.218
- 74.178.76.44
- 135.234.160.246
- 172.66.2.5
- 162.159.142.9
- 52.123.252.233
- 52.148.114.188
File paths
- C:\Program
- C:\Users\Malware\Desktop\leb
- a:\GG
- o:\6
- c:\jenkins\workspace\8-2-build-windows-x64-cygwin-sans-NAS\jdk8u401\683\build\windows-x64\deploy\jre-image\bin\javaws.pdb
- C:\Users\Public\Documents
- P:\:
- D:\Projects\WinRAR\sfx\build\sfxrar64\Release\sfxrar.pdb
- C:\Users\Bruno\Desktop\fileSrvSrvSrvSrv.exe
- C:\Windows\System32\userinit.exe,
More Zbot samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report