stealerium | 5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542

General

Target

Z-Launcher-GPS5.exe
Size

1.6MB
MD5

e6db71cc80920480219f16c0c54013c7
SHA1

4c7370868e5187d5d017c69df552dd809b76c1a2
SHA256

5b9a78809c6718019832322023e94982761032adb51e1a44ba139d4f63369542
SHA512

0b229b4b3e2cac3cd25748af0cbcc37840825b2d4f9d098e97e183f2f763fe240d0df89ef98a8c19c32e4cee61145d9e6f478598b6598384b6035ab714ebce55
SSDEEP

49152:TkTq24GjdGSiqkqXfd+/9AqYanieKdsfM:T1EjdGSiqkqXf0FLYWC

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

C2

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	Z-Launcher-GPS5.exe

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

Web Service

T1102

flow	ioc
18	discord.com
19	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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5012	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4916	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2724	Z-Launcher-GPS5.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	Z-Launcher-GPS5.exe
Token: SeDebugPrivilege	4916	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 1996	2724	Z-Launcher-GPS5.exe	87
PID 2724 wrote to memory of 1996	2724	Z-Launcher-GPS5.exe	87
PID 2724 wrote to memory of 1996	2724	Z-Launcher-GPS5.exe	87
PID 1996 wrote to memory of 1552	1996	cmd.exe	89
PID 1996 wrote to memory of 1552	1996	cmd.exe	89
PID 1996 wrote to memory of 1552	1996	cmd.exe	89
PID 1996 wrote to memory of 4916	1996	cmd.exe	90
PID 1996 wrote to memory of 4916	1996	cmd.exe	90
PID 1996 wrote to memory of 4916	1996	cmd.exe	90
PID 1996 wrote to memory of 5012	1996	cmd.exe	91
PID 1996 wrote to memory of 5012	1996	cmd.exe	91
PID 1996 wrote to memory of 5012	1996	cmd.exe	91

C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe
"C:\Users\Admin\AppData\Local\Temp\Z-Launcher-GPS5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmpC803.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1552
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2724
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4916
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC803.tmp.bat

Filesize
57B

MD5
ef7a1acde57a65ffeca9f31480f239e6

SHA1
62bc6148d2813dd379b8a2b3ae6837a7fb3a9bbe

SHA256
b862479bc586847db4c017cc630fa93c0fb42955578530e3c96e10d2fa60646a

SHA512
69e67cb41bbf9e64bb66dddecb608d832a02e077093b2c993be6d72dd178268479b153fc64a565d25745acfd4780f7811c541a4d4fb0f04ccacf4f0e8418b297

Download Submit
memory/2724-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/2724-1-0x0000000000520000-0x00000000006BC000-memory.dmp

Filesize
1.6MB

Download
memory/2724-2-0x0000000005060000-0x00000000050C6000-memory.dmp

Filesize
408KB

Download
memory/2724-3-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/2724-7-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/2724-8-0x0000000005660000-0x0000000005686000-memory.dmp

Filesize
152KB

Download
memory/2724-9-0x0000000005690000-0x0000000005698000-memory.dmp

Filesize
32KB

Download
memory/2724-10-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/2724-15-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download

Analysis

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