stealerium | 7b7fb709fbfa417617beda6fdceb611b51f7d4d76881a106c0edf683fd170e36

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 07:52

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General

Target

stub.exe
Size

1.6MB
MD5

02c88fe38285c217f895ff539c631fc5
SHA1

b0d560a11ce564c5272e879f321688b97561f55c
SHA256

7b7fb709fbfa417617beda6fdceb611b51f7d4d76881a106c0edf683fd170e36
SHA512

45498d421c5f13af6382a2ee54c7e2a044a25334c4186450426e52b96c21b9fb97b17d6ddb515f47c9fb19ab5dab37e7bef0cfe0f544f9bb5896ea5ea18c667e
SSDEEP

24576:v4XJi2Q9NXw2/wPOjdGxY2rJxkqjVnlqud+/2P+A+ZecdyFoBkkAqmZywr0G:ZTq24GjdGSiJxkqXfd+/9AqYanCLr

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2828	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2732	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2056	stub.exe
Token: SeDebugPrivilege	2732	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2696	2056	stub.exe	31
PID 2056 wrote to memory of 2696	2056	stub.exe	31
PID 2056 wrote to memory of 2696	2056	stub.exe	31
PID 2056 wrote to memory of 2696	2056	stub.exe	31
PID 2696 wrote to memory of 2708	2696	cmd.exe	33
PID 2696 wrote to memory of 2708	2696	cmd.exe	33
PID 2696 wrote to memory of 2708	2696	cmd.exe	33
PID 2696 wrote to memory of 2708	2696	cmd.exe	33
PID 2696 wrote to memory of 2732	2696	cmd.exe	34
PID 2696 wrote to memory of 2732	2696	cmd.exe	34
PID 2696 wrote to memory of 2732	2696	cmd.exe	34
PID 2696 wrote to memory of 2732	2696	cmd.exe	34
PID 2696 wrote to memory of 2828	2696	cmd.exe	35
PID 2696 wrote to memory of 2828	2696	cmd.exe	35
PID 2696 wrote to memory of 2828	2696	cmd.exe	35
PID 2696 wrote to memory of 2828	2696	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:2056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpAF52.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2696
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2708
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2056
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2732
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2828

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\tmpAF52.tmp.bat

Filesize
57B

MD5
27996f01662c0c4ad43341f3bc5151c9

SHA1
9a995547ef3667901758bab2e7e779a0afa90c36

SHA256
d3a7aca78e00e9beb775bf520dd25ed4a4f0a1e0dfdd88b9809d173b5b46ff54

SHA512
f9643978eb61e850695330a600fc3415d22a3be611733f01a26a711c1a13e92b99a2df4dfd410ff9d94987aab95146866a7b452b5fe9ff6db8f4eef2c7e733a6

Download Submit
memory/2056-0-0x000000007405E000-0x000000007405F000-memory.dmp

Filesize
4KB

Download
memory/2056-1-0x0000000000120000-0x00000000002B6000-memory.dmp

Filesize
1.6MB

Download
memory/2056-2-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download
memory/2056-5-0x0000000074050000-0x000000007473E000-memory.dmp

Filesize
6.9MB

Download