stealerium | b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 22:06

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General

Target

b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe
Size

3.5MB
MD5

f425cff35d35fff3619237dea3ab4890
SHA1

bb6a3027605a785f83801c7c0a669096bca48e07
SHA256

b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8
SHA512

529d8986118026ae2b4b8b0c1b0bc7943cf361be441db31ac2fc57035ede5861c4f1f0d703fa429ca4dbea21f5056f4a68382139add159707423c87f1f481911
SSDEEP

98304:zff4bJMxiM8aBP3D5uxmfQEvja3l0uhpo7rdnv0rhbyY60:GmiM8aLamhrRvdYm

Score

10^/10

stealerium stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1289898054861721610/UQWcUikhzoeSP3g5t4FGwPRX_m_qZGaFt1VvM7K3CUCEu3TaOhBCLZYSdh-IW9pcU4U1

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	discord.com
5	discord.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2232	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1204	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2552	b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe
Token: SeDebugPrivilege	1204	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2832	2552	b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe	33
PID 2552 wrote to memory of 2832	2552	b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe	33
PID 2552 wrote to memory of 2832	2552	b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe	33
PID 2832 wrote to memory of 2732	2832	cmd.exe	35
PID 2832 wrote to memory of 2732	2832	cmd.exe	35
PID 2832 wrote to memory of 2732	2832	cmd.exe	35
PID 2832 wrote to memory of 1204	2832	cmd.exe	36
PID 2832 wrote to memory of 1204	2832	cmd.exe	36
PID 2832 wrote to memory of 1204	2832	cmd.exe	36
PID 2832 wrote to memory of 2232	2832	cmd.exe	37
PID 2832 wrote to memory of 2232	2832	cmd.exe	37
PID 2832 wrote to memory of 2232	2832	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe
"C:\Users\Admin\AppData\Local\Temp\b8c74e7e86e542c6ce85dd268694a3f3be347d223eb2a2c34d64c8221d5cd3b8N.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpCE47.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2832
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2732
- - C:\Windows\system32\taskkill.exe
    TaskKill /F /IM 2552
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1204
- - C:\Windows\system32\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2232

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCE47.tmp.bat

Filesize
57B

MD5
1b6167ea467827b8788412f60fc823b2

SHA1
ef5f1492c0ef75cbbf4bb90b4270088c60ad3d47

SHA256
1e9befe491cfc5c243c3b9617daf204f5453bb3af6b8b65337d97e2aa4518f3e

SHA512
68c5e217882439b1a8b3fbbe067ff07843d330a6716e744fe42e9fb2818a47f4b2a128d1bd781cd0d046c1ae3eaa95fd25dfdad4bdf8b967247b70bb829c01b7

Download Submit
memory/2552-0-0x000007FEF6343000-0x000007FEF6344000-memory.dmp

Filesize
4KB

Download
memory/2552-1-0x0000000001080000-0x0000000001408000-memory.dmp

Filesize
3.5MB

Download
memory/2552-2-0x000000001B490000-0x000000001B838000-memory.dmp

Filesize
3.7MB

Download
memory/2552-3-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download
memory/2552-4-0x000000001BE90000-0x000000001BF30000-memory.dmp

Filesize
640KB

Download
memory/2552-5-0x0000000000CD0000-0x0000000000CF6000-memory.dmp

Filesize
152KB

Download
memory/2552-8-0x000007FEF6340000-0x000007FEF6D2C000-memory.dmp

Filesize
9.9MB

Download