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
Loads dropped DLL 1 IoCs

Processes:

buijp.exe

pid process

1100 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

1568 1100 WerFault.exe buijp.exe

pid	process
1100	buijp.exe

pid	pid_target	process	target process
1568	1100	WerFault.exe	buijp.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

buijp.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	buijp.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	buijp.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	buijp.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	buijp.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

powershell.exebuijp.exe

pid	process
1992	powershell.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe
1100	buijp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exebuijp.exe

description pid process

Token: SeDebugPrivilege 1992 powershell.exe
Token: SeDebugPrivilege 1100 buijp.exe

description	pid	process
Token: SeDebugPrivilege	1992	powershell.exe
Token: SeDebugPrivilege	1100	buijp.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

buijp.exe

description	pid	process	target process
PID 1100 wrote to memory of 1992	1100	buijp.exe	powershell.exe
PID 1100 wrote to memory of 1992	1100	buijp.exe	powershell.exe
PID 1100 wrote to memory of 1992	1100	buijp.exe	powershell.exe
PID 1100 wrote to memory of 1568	1100	buijp.exe	WerFault.exe
PID 1100 wrote to memory of 1568	1100	buijp.exe	WerFault.exe
PID 1100 wrote to memory of 1568	1100	buijp.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\buijp.exe
"C:\Users\Admin\AppData\Local\Temp\buijp.exe"
1⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1100
- 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:1992
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1100 -s 2036
  2⤵
  - Program crash
  PID:1568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Web Service

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

MD5
616827a61d7a49ce5389c5d96443e35d

SHA1
d522ee5607e122e775d77641dba09711146db739

SHA256
54d4025bc175de5367d0ace1a78fec7edf06b642892691cf85afb02b8ab166d5

SHA512
fd6a53cb9851e56b8dc6a40627058852f2949688b73dacf6f3e0fcf932453b8c52a3bfefb12c80c38397a89f1038ad8fad329ea2798b86457ce5d8fe7ba87312

Download Submit
memory/1100-64-0x000000001B020000-0x000000001B022000-memory.dmp

Filesize
8KB

Download
memory/1100-55-0x000007FEF5550000-0x000007FEF5F3C000-memory.dmp

Filesize
9.9MB

Download
memory/1100-67-0x000000001B810000-0x000000001B872000-memory.dmp

Filesize
392KB

Download
memory/1100-66-0x000000001BC00000-0x000000001BCA6000-memory.dmp

Filesize
664KB

Download
memory/1100-65-0x000000001B710000-0x000000001B786000-memory.dmp

Filesize
472KB

Download
memory/1100-54-0x0000000000AD0000-0x0000000000C5A000-memory.dmp

Filesize
1.5MB

Download
memory/1992-58-0x000000001B750000-0x000000001BA4F000-memory.dmp

Filesize
3.0MB

Download
memory/1992-63-0x0000000002854000-0x0000000002857000-memory.dmp

Filesize
12KB

Download
memory/1992-62-0x000007FEF29E0000-0x000007FEF337D000-memory.dmp

Filesize
9.6MB

Download
memory/1992-61-0x000000000285B000-0x000000000287A000-memory.dmp

Filesize
124KB

Download
memory/1992-60-0x0000000002850000-0x0000000002852000-memory.dmp

Filesize
8KB

Download
memory/1992-59-0x000007FEF29E0000-0x000007FEF337D000-memory.dmp

Filesize
9.6MB

Download
memory/1992-57-0x000007FEED810000-0x000007FEEE36D000-memory.dmp

Filesize
11.4MB

Download
memory/1992-56-0x000007FEFC0F1000-0x000007FEFC0F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads