stealerium | 7b7fb709fbfa417617beda6fdceb611b51f7d4d76881a106c0edf683fd170e36

Analysis

max time kernel
16s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
19-09-2024 08:00

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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	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
2964	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1492	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	stub.exe
Token: SeDebugPrivilege	1492	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2912	3060	stub.exe	31
PID 3060 wrote to memory of 2912	3060	stub.exe	31
PID 3060 wrote to memory of 2912	3060	stub.exe	31
PID 3060 wrote to memory of 2912	3060	stub.exe	31
PID 2912 wrote to memory of 2204	2912	cmd.exe	33
PID 2912 wrote to memory of 2204	2912	cmd.exe	33
PID 2912 wrote to memory of 2204	2912	cmd.exe	33
PID 2912 wrote to memory of 2204	2912	cmd.exe	33
PID 2912 wrote to memory of 1492	2912	cmd.exe	34
PID 2912 wrote to memory of 1492	2912	cmd.exe	34
PID 2912 wrote to memory of 1492	2912	cmd.exe	34
PID 2912 wrote to memory of 1492	2912	cmd.exe	34
PID 2912 wrote to memory of 2964	2912	cmd.exe	35
PID 2912 wrote to memory of 2964	2912	cmd.exe	35
PID 2912 wrote to memory of 2964	2912	cmd.exe	35
PID 2912 wrote to memory of 2964	2912	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:3060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB329.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2204
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3060
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1492
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2964

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\tmpB329.tmp.bat

Filesize
57B

MD5
30813245a86e384f0f1567bfe17dece0

SHA1
550c4bfe1279c9df79d27d9068838c69c86fdcd1

SHA256
d189dcfa1b0ab03eab0a9921c1a19d3db6ba15dc3dd4ccf16421a843541f518b

SHA512
6586aaed64068b42a54db98171aaf669557e257e8ec5f9168a81e51f59c938f32c6f55d0a217fee453bcd70f78303bebc4419a6376c0b1babc8f2e563e64d0e4

Download Submit
memory/3060-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x0000000001180000-0x0000000001316000-memory.dmp

Filesize
1.6MB

Download
memory/3060-2-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/3060-5-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download