blackguard | c1237d0e517abc7cd15bb55110196247b1f6ec397c28b8b2bdfba86dc5c8805f

General

Target

buijp.exe
Size

1.5MB
MD5

d9dd93dbce60481ae945dd6b9ba3e830
SHA1

a01dd4dbe77a99de0cdcc3c2830641ff79a2d892
SHA256

c1237d0e517abc7cd15bb55110196247b1f6ec397c28b8b2bdfba86dc5c8805f
SHA512

8c48538a643fef1811689af9a893527776c501e9ed40223528ab80901be2a182f326c0be13dcfe1e30f14f69f77323ab8138728bc3ef4ae77c40e17a1c505c46

Score

10^/10

blackguard spyware stealer

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot5000057429:AAGzxzARC3DPcOsfaw0jKHEyHfyEfZqVYQM/sendMessage?chat_id=1283089701

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard
Downloads MZ/PE file
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

buijp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation buijp.exe
Loads dropped DLL 1 IoCs

Processes:

buijp.exe

pid process

1872 buijp.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1848 1872 WerFault.exe buijp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	buijp.exe

pid	process
1872	buijp.exe

pid	pid_target	process	target process
1848	1872	WerFault.exe	buijp.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exebuijp.exe

pid	process
2876	powershell.exe
2876	powershell.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe
1872	buijp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exebuijp.exe

description pid process

Token: SeDebugPrivilege 2876 powershell.exe
Token: SeDebugPrivilege 1872 buijp.exe

description	pid	process
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	1872	buijp.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

buijp.exe

description	pid	process	target process
PID 1872 wrote to memory of 2876	1872	buijp.exe	powershell.exe
PID 1872 wrote to memory of 2876	1872	buijp.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\buijp.exe
"C:\Users\Admin\AppData\Local\Temp\buijp.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1872
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -inputformat none -outputformat none -NonInteractive -Command Add - MpPreference - ExclusionPath C:\
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1872 -s 2404
  2⤵
  - Program crash
  PID:1848

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 1872 -ip 1872
1⤵
PID:1604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

1

T1102

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\x64\SQLite.Interop.dll

MD5
616827a61d7a49ce5389c5d96443e35d

SHA1
d522ee5607e122e775d77641dba09711146db739

SHA256
54d4025bc175de5367d0ace1a78fec7edf06b642892691cf85afb02b8ab166d5

SHA512
fd6a53cb9851e56b8dc6a40627058852f2949688b73dacf6f3e0fcf932453b8c52a3bfefb12c80c38397a89f1038ad8fad329ea2798b86457ce5d8fe7ba87312

Download Submit
memory/1872-130-0x000001953E690000-0x000001953E81A000-memory.dmp

Filesize
1.5MB

Download
memory/1872-131-0x00007FFC830B0000-0x00007FFC83B71000-memory.dmp

Filesize
10.8MB

Download
memory/1872-137-0x0000019540690000-0x0000019540692000-memory.dmp

Filesize
8KB

Download
memory/1872-138-0x000001955A750000-0x000001955A7A0000-memory.dmp

Filesize
320KB

Download
memory/2876-132-0x0000019674CF0000-0x0000019674D12000-memory.dmp

Filesize
136KB

Download
memory/2876-133-0x00007FFC830B0000-0x00007FFC83B71000-memory.dmp

Filesize
10.8MB

Download
memory/2876-134-0x0000019672B70000-0x0000019672B72000-memory.dmp

Filesize
8KB

Download
memory/2876-135-0x0000019672B73000-0x0000019672B75000-memory.dmp

Filesize
8KB

Download
memory/2876-136-0x0000019672B76000-0x0000019672B78000-memory.dmp

Filesize
8KB

Download

Analysis

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