stealerium | 6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 04:56

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General

Target

stub.exe
Size

1.6MB
MD5

6627adf7167ee571e8fd6c8b1a0e8ae3
SHA1

03b9112660ee73c59d84e219f15bf24ae9df48db
SHA256

6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f
SHA512

e05896a6e0d09d4dafeb2467395ca06ae1e728a4aa079041dea82940caeb71646984604fdeea482748423b10257b8462db4f573682f9f719939143fdb5691c60
SSDEEP

49152:19Tq24GjdGSiqkqXfd+/9AqYanieKd0U:1YEjdGSiqkqXf0FLYW

Score

10^/10

stealerium discovery stealer

Malware Config

Signatures

Stealerium
An open source info stealer written in C# first seen in May 2022.
stealer stealerium
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stub.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2800	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2472	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	stub.exe
Token: SeDebugPrivilege	2472	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 2780	1452	stub.exe	31
PID 1452 wrote to memory of 2780	1452	stub.exe	31
PID 1452 wrote to memory of 2780	1452	stub.exe	31
PID 1452 wrote to memory of 2780	1452	stub.exe	31
PID 2780 wrote to memory of 2196	2780	cmd.exe	33
PID 2780 wrote to memory of 2196	2780	cmd.exe	33
PID 2780 wrote to memory of 2196	2780	cmd.exe	33
PID 2780 wrote to memory of 2196	2780	cmd.exe	33
PID 2780 wrote to memory of 2472	2780	cmd.exe	34
PID 2780 wrote to memory of 2472	2780	cmd.exe	34
PID 2780 wrote to memory of 2472	2780	cmd.exe	34
PID 2780 wrote to memory of 2472	2780	cmd.exe	34
PID 2780 wrote to memory of 2800	2780	cmd.exe	35
PID 2780 wrote to memory of 2800	2780	cmd.exe	35
PID 2780 wrote to memory of 2800	2780	cmd.exe	35
PID 2780 wrote to memory of 2800	2780	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\stub.exe
"C:\Users\Admin\AppData\Local\Temp\stub.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpA61F.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2196
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 1452
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2472
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA61F.tmp.bat

Filesize
57B

MD5
0c5b13da24a8df2f4a8f4b479d152b73

SHA1
fa32978d2bdc7c43cc05241d03984f7d86b20c0a

SHA256
1aed2f6afab6f3fbea31c38aa5c781d976ec4a54dfd3d65cc3e05cc1bf3a280c

SHA512
3bdbe899e80422799ae7a32ff2fd68b42ca0d1e2a62772fe3c851c05f299909ea28dac950758c6afd673029b70a4137c93a5af5d1ec17bdb0f48499215e5e369

Download Submit
memory/1452-0-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/1452-1-0x00000000012C0000-0x0000000001452000-memory.dmp

Filesize
1.6MB

Download
memory/1452-2-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/1452-5-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download