stealerium | 7b7fb709fbfa417617beda6fdceb611b51f7d4d76881a106c0edf683fd170e36

Analysis

max time kernel
35s
max time network
35s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 17:19

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General

Target

MERCURY.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

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	MERCURY.exe

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	MERCURY.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
1956	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4144	taskkill.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	MERCURY.exe
Token: SeDebugPrivilege	4144	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2628	2892	MERCURY.exe	85
PID 2892 wrote to memory of 2628	2892	MERCURY.exe	85
PID 2892 wrote to memory of 2628	2892	MERCURY.exe	85
PID 2628 wrote to memory of 1420	2628	cmd.exe	87
PID 2628 wrote to memory of 1420	2628	cmd.exe	87
PID 2628 wrote to memory of 1420	2628	cmd.exe	87
PID 2628 wrote to memory of 4144	2628	cmd.exe	88
PID 2628 wrote to memory of 4144	2628	cmd.exe	88
PID 2628 wrote to memory of 4144	2628	cmd.exe	88
PID 2628 wrote to memory of 1956	2628	cmd.exe	89
PID 2628 wrote to memory of 1956	2628	cmd.exe	89
PID 2628 wrote to memory of 1956	2628	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\MERCURY.exe
"C:\Users\Admin\AppData\Local\Temp\MERCURY.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp9FBA.tmp.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1420
- - C:\Windows\SysWOW64\taskkill.exe
    TaskKill /F /IM 2892
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4144
- - C:\Windows\SysWOW64\timeout.exe
    Timeout /T 2 /Nobreak
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9FBA.tmp.bat

Filesize
57B

MD5
2953464728cfc669bddd007e0caa10d8

SHA1
a4e00e978f20ace5f1a4c619e07793e02ea8cecb

SHA256
bf2d5ccd4fc533f374f3666f9138061b86f6ff61ed36b5dbd2330f0071d18721

SHA512
70183575f8ed1ed98080f0130927de088a3135212d2f09cef7db0cd1f2f53cc43eb2e9f0756d958c3c20cdbc63415abdbe3f2b16550f54199aaa5036678232ae

Download Submit
memory/2892-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2892-1-0x0000000000D10000-0x0000000000EA6000-memory.dmp

Filesize
1.6MB

Download
memory/2892-2-0x0000000005860000-0x00000000058C6000-memory.dmp

Filesize
408KB

Download
memory/2892-3-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2892-6-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download