stealerium | 5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542

Analysis

max time kernel
30s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
25/09/2024, 20:16

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General

Target
Z-Launcher-GPS5.exe
Size 1.6MB
Sample240925-y2eabayeqe
SHA256 5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542
MD5 e6db71cc80920480219f16c0c54013c7
SHA1 4c7370868e5187d5d017c69df552dd809b76c1a2
SHA512 0b229b4b3e2cac3cd25748af0cbcc37840825b2d4f9d098e97e183f2f763fe240d0df89ef98a8c19c32e4cee61145d9e6f478598b6598384b6035ab714ebce55
SSDEEP 49152:TkTq24GjdGSiqkqXfd+/9AqYanieKdsfM:T1EjdGSiqkqXf0FLYWC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

https://discord.com/api/webhooks/1279142597218013264/8mlljrcp8pu-na1Kxr-pwaQv-IeIN4qXz3iwqKTXrY-DPCA89wjqOAQeRKn7qMqu3BR6

Signatures

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

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
2	discord.com
1	discord.com

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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Z-Launcher-GPS5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
872	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4936	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3280	Z-Launcher-GPS5.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3280	Z-Launcher-GPS5.exe
Token: SeDebugPrivilege	4936	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3280 wrote to memory of 544	3280	Z-Launcher-GPS5.exe	79
PID 3280 wrote to memory of 544	3280	Z-Launcher-GPS5.exe	79
PID 3280 wrote to memory of 544	3280	Z-Launcher-GPS5.exe	79
PID 544 wrote to memory of 3548	544	cmd.exe	81
PID 544 wrote to memory of 3548	544	cmd.exe	81
PID 544 wrote to memory of 3548	544	cmd.exe	81
PID 544 wrote to memory of 4936	544	cmd.exe	82
PID 544 wrote to memory of 4936	544	cmd.exe	82
PID 544 wrote to memory of 4936	544	cmd.exe	82
PID 544 wrote to memory of 872	544	cmd.exe	83
PID 544 wrote to memory of 872	544	cmd.exe	83
PID 544 wrote to memory of 872	544	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe
"C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpB3BF.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3548
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 3280
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4936
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:872

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

Web Service

T1102

Exfiltration

Impact

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Downloads

tmpB3BF.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpB3BF.tmp.bat
Size 57B
SHA256 ce322b1f451138957e52bf63afd049eb81eb57271796062d6e131178aeb6de87
MD5 a938d7cc8afbea05a0e0f5bc8a5f150a
SHA1 64c2acd464a55a8e953e0a19236d5c3ab8c3d99c
SHA512 b528c432fb3062bcf2f90b15fc6953f49f3eb6736441255310ea1f29da8f78814528f8a65b603ba659080bd9fa0fe7cb9a2132ed71d96cc5eeca2ed15b07b9c5
MD5 SHA1 SHA512

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memory/3280-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

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memory/3280-1-0x0000000000E90000-0x000000000102C000-memory.dmp

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memory/3280-2-0x0000000005940000-0x00000000059A6000-memory.dmp

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memory/3280-3-0x00000000746B0000-0x0000000074E61000-memory.dmp

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memory/3280-7-0x0000000005EE0000-0x0000000005F72000-memory.dmp

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memory/3280-8-0x0000000005F70000-0x0000000005F96000-memory.dmp

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memory/3280-9-0x0000000005FA0000-0x0000000005FA8000-memory.dmp

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memory/3280-14-0x00000000746B0000-0x0000000074E61000-memory.dmp

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