stealerium | fcbed64783aea65507256adf54f7aa4781cd68bf9ca52de0f804ac6b51ac0a0b

Analysis

max time kernel
118s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-09-2024 18:26

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General

Target

SB.exe
Size

3.6MB
MD5

fdb22f1f1c47cb95abef9a087ec1df30
SHA1

27904ce1e4f522c01dec40de3a1d25783d94d61e
SHA256

fcbed64783aea65507256adf54f7aa4781cd68bf9ca52de0f804ac6b51ac0a0b
SHA512

c469c8459a04cbcecac98974bac42ff74e2cea75140c39af0b7b074a94b3299b2fbeaef9fb8235151e98848c8416853cde4b5f4f155a9b3e1f5d2035120f8cc5
SSDEEP

98304:OEjdGSi3kqXf0FLYWCLbi6sfLxkuahjCOeX9YG9see5GnRyCAm0makxH13:w3kSILYWqZAkuujCPX9YG9he5GnQCAJS

Score

10^/10

stealerium discovery stealer

Malware Config

Extracted

Family

stealerium

7244443216:AAH-w5CROF6FKGITLGQZkvmA-9rgPYNfm4c

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	SB.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
2080	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2688	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2808	SB.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	SB.exe
Token: SeDebugPrivilege	2688	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2612	2808	SB.exe	31
PID 2808 wrote to memory of 2612	2808	SB.exe	31
PID 2808 wrote to memory of 2612	2808	SB.exe	31
PID 2808 wrote to memory of 2612	2808	SB.exe	31
PID 2612 wrote to memory of 2672	2612	cmd.exe	33
PID 2612 wrote to memory of 2672	2612	cmd.exe	33
PID 2612 wrote to memory of 2672	2612	cmd.exe	33
PID 2612 wrote to memory of 2672	2612	cmd.exe	33
PID 2612 wrote to memory of 2688	2612	cmd.exe	34
PID 2612 wrote to memory of 2688	2612	cmd.exe	34
PID 2612 wrote to memory of 2688	2612	cmd.exe	34
PID 2612 wrote to memory of 2688	2612	cmd.exe	34
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35
PID 2612 wrote to memory of 2080	2612	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\SB.exe
"C:\Users\Admin\AppData\Local\Temp\SB.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\1ab688aa-3db2-4caa-ace3-c46c7172c40e.bat"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2612
- - C:\Windows\SysWOW64\chcp.com
    chcp 65001
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2672
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /F /PID 2808
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2688
- - C:\Windows\SysWOW64\timeout.exe
    timeout /T 2 /NOBREAK
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2080

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\1ab688aa-3db2-4caa-ace3-c46c7172c40e.bat

Filesize
152B

MD5
14412fe66d3fd1b27cb2182c15201fed

SHA1
975a71585c56f409feaf0e67056640c133b5c9c7

SHA256
4f2b084267d71925637d0c5eee73e1674cd3875d3653aec0d56866e7aa96316c

SHA512
075375f3483d9b22b6416a322c4923bce020e55fe1381e53377245ac72f7f99b9d70b583aa369d8f43b61007597ace1c010abd3645088f8d9b6025defdaf951f

Download Submit
memory/2808-0-0x000000007439E000-0x000000007439F000-memory.dmp

Filesize
4KB

Download
memory/2808-1-0x0000000000870000-0x0000000000C1C000-memory.dmp

Filesize
3.7MB

Download
memory/2808-2-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-3-0x000000007439E000-0x000000007439F000-memory.dmp

Filesize
4KB

Download
memory/2808-4-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-7-0x0000000074390000-0x0000000074A7E000-memory.dmp

Filesize
6.9MB

Download