Malware Analysis Report

2024-08-06 12:41

Sample ID 240504-trclhsah6y
Target stub.exe
SHA256 18ba00b3a2ce55339ad848455df7fd708da30bbc7fe5df880a1affe11a548bc8
Tags
stealerium stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

18ba00b3a2ce55339ad848455df7fd708da30bbc7fe5df880a1affe11a548bc8

Threat Level: Known bad

The file stub.exe was found to be: Known bad.

Malicious Activity Summary

stealerium stealer

Stealerium family

Stealerium

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Unsigned PE

Enumerates physical storage devices

Delays execution with timeout.exe

Kills process with taskkill

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-04 16:17

Signatures

Stealerium family

stealerium

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-04 16:17

Reported

2024-05-04 16:17

Platform

win10v2004-20240419-en

Max time kernel

13s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\stub.exe"

Signatures

Stealerium

stealer stealerium

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\stub.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A discord.com N/A N/A
N/A discord.com N/A N/A

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\stub.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\stub.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 316 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\stub.exe C:\Windows\SysWOW64\cmd.exe
PID 316 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\stub.exe C:\Windows\SysWOW64\cmd.exe
PID 316 wrote to memory of 3312 N/A C:\Users\Admin\AppData\Local\Temp\stub.exe C:\Windows\SysWOW64\cmd.exe
PID 3312 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3312 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3312 wrote to memory of 2616 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3312 wrote to memory of 2772 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3312 wrote to memory of 2772 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3312 wrote to memory of 2772 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3312 wrote to memory of 4148 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3312 wrote to memory of 4148 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3312 wrote to memory of 4148 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\stub.exe

"C:\Users\Admin\AppData\Local\Temp\stub.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5D24.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 316

C:\Windows\SysWOW64\timeout.exe

Timeout /T 2 /Nobreak

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
NL 23.62.61.160:443 www.bing.com tcp
US 8.8.8.8:53 160.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.135.232:443 discord.com tcp
US 8.8.8.8:53 232.135.159.162.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp

Files

memory/316-0-0x000000007488E000-0x000000007488F000-memory.dmp

memory/316-1-0x00000000007C0000-0x0000000000956000-memory.dmp

memory/316-2-0x00000000052F0000-0x0000000005356000-memory.dmp

memory/316-3-0x0000000074880000-0x0000000075030000-memory.dmp

memory/316-6-0x0000000005950000-0x00000000059E2000-memory.dmp

memory/316-7-0x00000000059E0000-0x0000000005A06000-memory.dmp

memory/316-8-0x0000000005A30000-0x0000000005A38000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5D24.tmp.bat

MD5 2b82064348986191a88e345965ac2e99
SHA1 2d533ee8d09c7850d7a949680232f75579158e64
SHA256 b1c6c3605852433062e0c2361bc309af6fa2ef1441f8d304931d01f3ae28b409
SHA512 e8f75f8a821a75aea29406fdc48d705e5e200fe96a40e73284d4eb5915ad5c9dd96af29af49500dc8e9c18b0e920f2f754cf0ad4a5addc48e607c05d6824d4c4

memory/316-13-0x0000000074880000-0x0000000075030000-memory.dmp