blackguard | a49fd25b00e8ef3240caec0ccb08d0f0da1e4b5779f611c030df80b13f7ead11

Analysis

max time kernel
133s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220310-en
submitted
01-04-2022 05:01

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General

Target

1388-55-0x0000000000B70000-0x0000000000BC4000-memory.exe
Size

336KB
MD5

c9d522b650a08a5ac3374240cd7e4da3
SHA1

dc0b9124cad566be7b5e65f2528d8300b1040007
SHA256

a49fd25b00e8ef3240caec0ccb08d0f0da1e4b5779f611c030df80b13f7ead11
SHA512

b2e84b9bd22165307deb188695be15252c3974633c054d6ef9dd908f956f7564d48a62760f70c1fbfed5d25cd32d5bf0c6085025340b1e89fe4da6b8446a164f

Score

10^/10

blackguard stealer

Malware Config

Extracted

Family

blackguard

https://umpulumpu.ru/

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{A9904DC6-B4FE-4648-B044-86B074CB8CE6}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{8CE13AF4-27E6-4B6F-BD12-DFEF70D4D370}.catalogItem	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2936	4196	WerFault.exe	81

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	1388-55-0x0000000000B70000-0x0000000000BC4000-memory.exe

C:\Users\Admin\AppData\Local\Temp\1388-55-0x0000000000B70000-0x0000000000BC4000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\1388-55-0x0000000000B70000-0x0000000000BC4000-memory.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4196
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 4196 -s 1972
  2⤵
  - Program crash
  PID:2936

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1320

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 4196 -ip 4196
1⤵
PID:2200

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4196-134-0x000001B27C090000-0x000001B27C0E4000-memory.dmp

Filesize
336KB

Download
memory/4196-135-0x00007FFA5B6C0000-0x00007FFA5C181000-memory.dmp

Filesize
10.8MB

Download
memory/4196-136-0x000001B27DE10000-0x000001B27DE12000-memory.dmp

Filesize
8KB

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads