MALICIOUS — 99a1600a07a7afab3efe1a44bd09b1cff33d8114675a847f065625bf1b145baa
MALICIOUS — 99a1600a07a7afab3efe1a44bd09b1cff33d8114675a847f065625bf1b145baa is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Bulz family. 7 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
99a1600a07a7afab3efe1a44bd09b1cff33d8114675a847f065625bf1b145baa - SHA-1:
ee27ca975baab32df0ad8ba80abedb37181d9b73 - MD5:
690f14e73cda2ccdc64094dcfe1a2836 - imphash:
c1fc0e0d6ec19db3a254651cbc6c3a25 - ssdeep:
49152:/WWhipXqjhKPgssSt2gTBMO+YrovpU/9Nlju:Oojhv7St0Ogh - TLSH:
T17C5E5BCC861EBB01D27AC62458606E9C6436F0D56A7E35AC0F06CABE5197C37ECB1079 - Submitted as: 99a1600a07a7afab3efe1a44bd09b1cff33d8114675a847f065625bf1b145baa
- File type: pe · Size: 3088237 bytes
- Verdict: malicious (99/100) · Family: Bulz
Detections (7 of 55 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- capa (capabilities): capability:collection/keylog
- ClamAV (daily): Win.Malware.Bulz-9871427-0
- YARA: delivr.to detections: DLV_Maldoc_VBA_AutoExec
- YARA: JPCERT/CC: JPCERT_HUILoader_PlugX_SideLoad
- YARA: MalwareAnalyser community pack: TL_Shellcode_VirtualAlloc_Exec
- YARA: Yara-Rules community: YR_AntiDebug_Checks
MITRE ATT&CK
YARA
- Windows_Injection_Api_Combo
Why this verdict
The malicious score of 99/100 is the fusion of 12 weighted signals:
- ClamAV (daily) flagged Win.Malware.Bulz-9871427-0 (rule
Win.Malware.Bulz-9871427-0) - engine signal, weight 0.90, confidence 0.95 - Process injection API combination (rule
Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90 - capture keystrokes (rule
capture keystrokes) - capa signal, weight 0.40, confidence 0.80 - Contacted 19 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- YARA: delivr.to detections flagged DLV_Maldoc_VBA_AutoExec (rule
DLV_Maldoc_VBA_AutoExec) - engine signal, weight 0.35, confidence 0.70 - 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_Shellcode_VirtualAlloc_Exec (rule
TL_Shellcode_VirtualAlloc_Exec) - 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 - Embedded network infrastructure: http://www.symauth.com/cps0, http://www.symauth.com/rpa04, http://www.symauth.com/cps09 - static signal, weight 0.35, confidence 0.60
- communicate over HTTP (rule
communicate over HTTP) - capa signal, weight 0.30, confidence 0.60 - enumerate processes (rule
enumerate processes) - capa signal, weight 0.20, confidence 0.60 - inject code into another process (rule
inject code into another process) - capa signal, weight 0.12, confidence 0.60
Dynamic analysis (windows)
70 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
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
- settings-win.data.microsoft.com
Embedded URLs
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- https://armmf.adobe.com/arm-manifests/win/
- http://www.adobe.com/support/downloads/product.jsp?product=1&platform=Windows
- http://www.adobe.com/support/downloads/product.jsp?product=10&platform=Windows
- http://crl.thawte.com/ThawteTimestampingCA.crl0
- http://ts-aia.ws.symantec.com/tss-ca-g2.cer0
- http://ts-crl.ws.symantec.com/tss-ca-g2.crl0
- http://crl.verisign.com/pca3.crl0
- https://www.verisign.com/cps0
- http://logo.verisign.com/vslogo.gif04
- http://www.symauth.com/cps0
- http://www.symauth.com/rpa04
- http://crl.verisign.com/pca3-g5.crl0
- http://www.symauth.com/cps09
- http://evcs-crl.ws.symantec.com/evcs.crl0
- http://evcs-aia.ws.symantec.com/evcs.cer0
- http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0
- http://www.microsoft.com/pki/certs/MicCodSigPCA_08-31-2010.crt0
- http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0T
- http://office.microsoft.com
- http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt0
- http://www.microsoft.com/pki/certs/MicTimStaPCA_2010-07-01.crt0
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded domains
- schemas.microsoft.com
- armmf.adobe.com
- www.adobe.com
- crl.thawte.com
- ts-aia.ws.symantec.com
- ts-crl.ws.symantec.com
- crl.verisign.com
- www.verisign.com
- logo.verisign.com
- www.symauth.com
- evcs-crl.ws.symantec.com
- evcs-aia.ws.symantec.com
- crl.microsoft.com
- www.microsoft.com
- office.microsoft.com
- officeredir.microsoft.com
Embedded IP addresses
- 1.7.2.0
- 4.150.223.99
- 52.123.252.203
- 57.155.101.212
- 4.230.171.124
- 52.230.60.54
- 74.179.77.204
- 74.179.77.164
- 13.89.179.12
- 52.123.252.225
- 74.178.76.44
- 203.26.79.13
- 20.236.44.162
- 52.123.129.14
- 172.178.240.161
- 92.223.78.30
- 72.154.7.17
- 52.110.12.26
- 52.148.114.188
- 52.110.12.19
File paths
- f:\CB\ARM_Sustaining\BuildResults\bin\Win32\Release\AdobeARM.pdb
- R:\:m:{:
- D:\:q:
- X:\:`:d:h:l:p:t:
- T:\:d:l:t:
- T:\:d:l:x:
- d:\dbs\el\oc\target\x86\ship\postc2r\x-none\selfcert.pdb
- V:\:b:h:n:t:z:
- X:\:`:d:h:l:p:t:x:
- P:\:d:
- C:\btvsts\3481\private\softgrid\shared\include\command_line_cleaner.hpp
- T:\:h:
More Bulz samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report