blackguard | bde2b977cdd7c086a35825a9ba7f2307341a3917f40cc193ed316dde106a6c74

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
14-09-2023 20:33

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General

Target

AYReport_EN.exe
Size

9.6MB
MD5

ec333982af0977d8af5a4984792a4385
SHA1

d5b7e49c6476766d45a18cdd150d0679a9529a5a
SHA256

bde2b977cdd7c086a35825a9ba7f2307341a3917f40cc193ed316dde106a6c74
SHA512

1446ecc9ca6f193796cdbaf1b9f291b85a36279659254e6cbf286dba8a0e5f233c889b459b799a0d18462f1210841a61a207f76bc90db4365a43e7d967761cfc
SSDEEP

49152:LLLjKXCrX+hMesdq40bf95X9K5NRcSJDg/u/fiGhG6E7/6bp1pBt0zKkevwN/+j:

Score

10^/10

blackguard stealer

Malware Config

Signatures

BlackGuard
Infostealer first seen in Late 2021.
stealer blackguard

Executes dropped EXE 2 IoCs

pid	Process
2320	DE8ET2V1.exe
2760	YQMREPWL.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2492	2320	WerFault.exe	29

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	DE8ET2V1.exe
Token: SeDebugPrivilege	2760	YQMREPWL.exe
Token: SeTakeOwnershipPrivilege	2760	YQMREPWL.exe
Token: SeRestorePrivilege	2760	YQMREPWL.exe
Token: SeTcbPrivilege	2760	YQMREPWL.exe
Token: SeBackupPrivilege	2760	YQMREPWL.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2760	YQMREPWL.exe
2760	YQMREPWL.exe
2760	YQMREPWL.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 2320	1768	AYReport_EN.exe	29
PID 1768 wrote to memory of 2320	1768	AYReport_EN.exe	29
PID 1768 wrote to memory of 2320	1768	AYReport_EN.exe	29
PID 1768 wrote to memory of 2760	1768	AYReport_EN.exe	30
PID 1768 wrote to memory of 2760	1768	AYReport_EN.exe	30
PID 1768 wrote to memory of 2760	1768	AYReport_EN.exe	30
PID 1768 wrote to memory of 2760	1768	AYReport_EN.exe	30
PID 2320 wrote to memory of 2492	2320	DE8ET2V1.exe	32
PID 2320 wrote to memory of 2492	2320	DE8ET2V1.exe	32
PID 2320 wrote to memory of 2492	2320	DE8ET2V1.exe	32

C:\Users\Admin\AppData\Local\Temp\AYReport_EN.exe
"C:\Users\Admin\AppData\Local\Temp\AYReport_EN.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Roaming\Mozilla\DE8ET2V1.exe
  "C:\Users\Admin\AppData\Roaming\Mozilla\DE8ET2V1.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2320 -s 1152
    3⤵
    - Program crash
    PID:2492
- C:\Users\Admin\AppData\Roaming\Adobe\YQMREPWL.exe
  "C:\Users\Admin\AppData\Roaming\Adobe\YQMREPWL.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\YQMREPWL.exe

Filesize
1.8MB

MD5
cdb983e76d6fc15c5eaef54a063f0091

SHA1
ff22a165f86cf929727fa12d8e787e69d24bb19c

SHA256
0d9e31079d1626252be3d0241e9559e975a0ccf94648d4f41219119136f361f1

SHA512
a665a3c222a4fb218dca8af4e10582e493e4aec146e6e5bbf1091d482ea3081528e77fc9b176f892d5ba04fe442991947acc20242b3e4885fd37a614a963f3c6

Download Submit
C:\Users\Admin\AppData\Roaming\Adobe\YQMREPWL.exe

Filesize
1.8MB

MD5
cdb983e76d6fc15c5eaef54a063f0091

SHA1
ff22a165f86cf929727fa12d8e787e69d24bb19c

SHA256
0d9e31079d1626252be3d0241e9559e975a0ccf94648d4f41219119136f361f1

SHA512
a665a3c222a4fb218dca8af4e10582e493e4aec146e6e5bbf1091d482ea3081528e77fc9b176f892d5ba04fe442991947acc20242b3e4885fd37a614a963f3c6

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\DE8ET2V1.exe

Filesize
1.8MB

MD5
8bbaf95337912b8a1d36594e5bb2f5e6

SHA1
5db26a00543868b7f7bc88ec6597a17cf0dc71ae

SHA256
c50a943a78dc0049438b810fae2973ade0350c6ad76f924348fd56daff9fdf3a

SHA512
3665bbbfced55b369c0a3926fbe1682c3dc80e669d33fc523b4e23c2bbbb38f34b50d04bf369d0104d71ff99c73e9cb3d525408f0f137d7e870d7dded4196620

Download Submit
C:\Users\Admin\AppData\Roaming\Mozilla\DE8ET2V1.exe

Filesize
1.8MB

MD5
8bbaf95337912b8a1d36594e5bb2f5e6

SHA1
5db26a00543868b7f7bc88ec6597a17cf0dc71ae

SHA256
c50a943a78dc0049438b810fae2973ade0350c6ad76f924348fd56daff9fdf3a

SHA512
3665bbbfced55b369c0a3926fbe1682c3dc80e669d33fc523b4e23c2bbbb38f34b50d04bf369d0104d71ff99c73e9cb3d525408f0f137d7e870d7dded4196620

Download Submit
memory/1768-0-0x0000000000370000-0x0000000000D0A000-memory.dmp

Filesize
9.6MB

Download
memory/1768-1-0x000007FEF59D0000-0x000007FEF63BC000-memory.dmp

Filesize
9.9MB

Download
memory/1768-14-0x000007FEF59D0000-0x000007FEF63BC000-memory.dmp

Filesize
9.9MB

Download
memory/2320-9-0x000007FEF59D0000-0x000007FEF63BC000-memory.dmp

Filesize
9.9MB

Download
memory/2320-10-0x0000000000E70000-0x000000000104C000-memory.dmp

Filesize
1.9MB

Download
memory/2320-15-0x000000001B1D0000-0x000000001B250000-memory.dmp

Filesize
512KB

Download
memory/2320-17-0x000007FEF59D0000-0x000007FEF63BC000-memory.dmp

Filesize
9.9MB

Download
memory/2320-18-0x000000001B1D0000-0x000000001B250000-memory.dmp

Filesize
512KB

Download