stealerium | 891f40ffc8ad4a49898448b357e842c1ae83703f7a2a29da2bb2d1d66ea56884

Analysis

max time kernel
99s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2023, 01:20

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General

Target
0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe
Size 1.6MB
Sample230701-bp4ccafc36
SHA256 0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba
MD5 58f5d3f738283351db8a2dbafb50be24
SHA1 9c18d5b5957ecf187fb5a2e68a6868a8cd719265
SHA512 80bbf70fc808c593f1b9c58d11d2d32624040917ae54d0c0eb577bde522a1bb1b914c8578a811743bcbc2dbe62a0b8609cc65093d81ca296662e33c71913e3d0
SSDEEP 24576:Di2Q9NXw2/wPOjdGxY2rqkqjVnlqud+/2P+A+ZecdyFoBkkAnexMrdgL/:mTq24GjdGSiqkqXfd+/9AqYanieKd
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealerium stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1122279032260665414/W-unCHniD2YI670Bytn7FIpY-nux43_owoRzlVZOux3NvAnntnyH_9eSHWkJsi-nQBDo

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2178924671-3779044592-2825503497-1000\Control Panel\International\Geo\Nation	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe

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).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4564	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3720	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4868	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4868	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe
Token: SeDebugPrivilege	3720	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4868 wrote to memory of 3668	4868	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe	90
PID 4868 wrote to memory of 3668	4868	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe	90
PID 4868 wrote to memory of 3668	4868	0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe	90
PID 3668 wrote to memory of 4620	3668	cmd.exe	92
PID 3668 wrote to memory of 4620	3668	cmd.exe	92
PID 3668 wrote to memory of 4620	3668	cmd.exe	92
PID 3668 wrote to memory of 3720	3668	cmd.exe	93
PID 3668 wrote to memory of 3720	3668	cmd.exe	93
PID 3668 wrote to memory of 3720	3668	cmd.exe	93
PID 3668 wrote to memory of 4564	3668	cmd.exe	94
PID 3668 wrote to memory of 4564	3668	cmd.exe	94
PID 3668 wrote to memory of 4564	3668	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe
"C:\Users\Admin\AppData\Local\Temp\0ddb866d33fa7277ea51dbaadd197e08318d1c6cd524c352ecb325cad85b82ba.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4868
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpF11B.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3668
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4620
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 4868
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3720
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:4564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

tmpF11B.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpF11B.tmp.bat
Size 57B
SHA256 0d4982123354fc6aa61af59c337f128759739ce2e0c15fdc592a8b18839d7ebb
MD5 1843d50c5dc55202874452f47ad02aff
SHA1 74ae96b9ce71a26476f1068b54b84fbbe964580d
SHA512 635b0dffbfd81f6dd4969145b1846a584dc42f21c2a08c0a4b9789f20ef8fff2847dc74799aafcb8264642b9a97d976e59c2af6c73a09d2393244f8f45836207
MD5 SHA1 SHA512

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memory/4868-133-0x00000000008A0000-0x0000000000A32000-memory.dmp

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memory/4868-134-0x0000000005250000-0x00000000052B6000-memory.dmp

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memory/4868-135-0x00000000052D0000-0x00000000052E0000-memory.dmp

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memory/4868-136-0x00000000052D0000-0x00000000052E0000-memory.dmp

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