stealerium | 6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f

Analysis

max time kernel
9s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
10-04-2024 16:26

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General

Target

Loader.exe
Size

1.6MB
MD5

6627adf7167ee571e8fd6c8b1a0e8ae3
SHA1

03b9112660ee73c59d84e219f15bf24ae9df48db
SHA256

6c5935bcddaa1d4f809487f66db758e892cc0a7fd7704d138904bc879644ea1f
SHA512

e05896a6e0d09d4dafeb2467395ca06ae1e728a4aa079041dea82940caeb71646984604fdeea482748423b10257b8462db4f573682f9f719939143fdb5691c60
SSDEEP

49152:19Tq24GjdGSiqkqXfd+/9AqYanieKd0U:1YEjdGSiqkqXf0FLYW

Score

10^/10

stealerium 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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3792	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4980	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3156	Loader.exe
Token: SeDebugPrivilege	4980	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 2924	3156	Loader.exe	81
PID 3156 wrote to memory of 2924	3156	Loader.exe	81
PID 3156 wrote to memory of 2924	3156	Loader.exe	81
PID 2924 wrote to memory of 4600	2924	cmd.exe	83
PID 2924 wrote to memory of 4600	2924	cmd.exe	83
PID 2924 wrote to memory of 4600	2924	cmd.exe	83
PID 2924 wrote to memory of 4980	2924	cmd.exe	84
PID 2924 wrote to memory of 4980	2924	cmd.exe	84
PID 2924 wrote to memory of 4980	2924	cmd.exe	84
PID 2924 wrote to memory of 3792	2924	cmd.exe	85
PID 2924 wrote to memory of 3792	2924	cmd.exe	85
PID 2924 wrote to memory of 3792	2924	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpA393.tmp.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    PID:4600
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3156
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4980
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3792

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\Local\Temp\tmpA393.tmp.bat

Filesize
57B

MD5
aa5a81e3d81c0c54d972cd0e8bbc704c

SHA1
6781c55295a2404d303727270f871f57b8dbd45b

SHA256
5a34bd3970c0eebb7807d327f01f3e9f7a7e05c5110c57e500f8a37b9385c1d5

SHA512
5148de56cdc843539cac79a7d9a23a5ff02257c3f13b94e64fc2bb1a4a3638743649e04fce1a71ced7e0fa499598b82b7636653d4804737d5654c3e3cf74708e

Download Submit
memory/3156-0-0x00000000745D0000-0x0000000074D81000-memory.dmp

Filesize
7.7MB

Download
memory/3156-1-0x0000000000110000-0x00000000002A2000-memory.dmp

Filesize
1.6MB

Download
memory/3156-2-0x0000000004D60000-0x0000000004DC6000-memory.dmp

Filesize
408KB

Download
memory/3156-3-0x0000000004CE0000-0x0000000004CF0000-memory.dmp

Filesize
64KB

Download
memory/3156-6-0x00000000745D0000-0x0000000074D81000-memory.dmp

Filesize
7.7MB

Download