Malware Analysis Report

2024-08-06 12:42

Sample ID 240508-cf5z9afd37
Target b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b
SHA256 b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b

Threat Level: Known bad

The file b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b was found to be: Known bad.

Malicious Activity Summary

stealerium stealer

Detects executables referencing many email and collaboration clients. Observed in information stealers

Detects executables referencing Discord tokens regular expressions

Detects executables with interest in wireless interface using netsh

Detects executables referencing credit card regular expressions

Stealerium

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Detects executables manipulated with Fody

Detects executables referencing many VPN software clients. Observed in infosteslers

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Stealerium family

Detects executables with interest in wireless interface using netsh

Detects executables referencing many email and collaboration clients. Observed in information stealers

Detects executables referencing many VPN software clients. Observed in infosteslers

Detects executables referencing credit card regular expressions

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Detects executables manipulated with Fody

Detects executables referencing Discord tokens regular expressions

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Kills process with taskkill

Delays execution with timeout.exe

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
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

2024-05-08 02:02

Signatures

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

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

Detects executables manipulated with Fody

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

Detects executables referencing Discord tokens regular expressions

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

Detects executables referencing credit card regular expressions

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

Detects executables referencing many VPN software clients. Observed in infosteslers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables with interest in wireless interface using netsh

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

Stealerium family

stealerium

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-08 02:02

Reported

2024-05-08 02:04

Platform

win7-20240220-en

Max time kernel

120s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe"

Signatures

Stealerium

stealer stealerium

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

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

Detects executables manipulated with Fody

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

Detects executables referencing Discord tokens regular expressions

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

Detects executables referencing credit card regular expressions

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

Detects executables referencing many VPN software clients. Observed in infosteslers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables with interest in wireless interface using netsh

Description Indicator Process Target
N/A N/A N/A 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\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 2360 wrote to memory of 1960 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 1960 wrote to memory of 2784 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1960 wrote to memory of 2784 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1960 wrote to memory of 2784 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1960 wrote to memory of 2784 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 1960 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1960 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1960 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1960 wrote to memory of 2764 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 1960 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1960 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1960 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1960 wrote to memory of 2808 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe

"C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp4043.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 2360

C:\Windows\SysWOW64\timeout.exe

Timeout /T 2 /Nobreak

Network

Country Destination Domain Proto
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp

Files

memory/2360-0-0x000000007455E000-0x000000007455F000-memory.dmp

memory/2360-1-0x0000000000070000-0x0000000000202000-memory.dmp

memory/2360-2-0x0000000074550000-0x0000000074C3E000-memory.dmp

memory/2360-6-0x0000000002160000-0x00000000021F2000-memory.dmp

memory/2360-7-0x0000000002030000-0x0000000002056000-memory.dmp

memory/2360-8-0x0000000000820000-0x0000000000828000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

C:\Users\Admin\AppData\Local\Temp\Tar3FE5.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

C:\Users\Admin\AppData\Local\Temp\tmp4043.tmp.bat

MD5 4223a1770a8fd1376f49e36b9ec70517
SHA1 e0964fa7ff5d9a361e54f95c286659214d752e31
SHA256 b2d07f7e84217a13983723468efa974d15640b4936c501b95d367516c8fa0e5f
SHA512 85adf38e6b77dee40cc332c7ba8eaa3c01ba498d17c2a86b6ed39e4f70bf32c16e88b32027fc90257222521e9d3bc8b94bcd500c1079c62c37d2652eb35d0f41

memory/2360-50-0x0000000074550000-0x0000000074C3E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-08 02:02

Reported

2024-05-08 02:04

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe"

Signatures

Stealerium

stealer stealerium

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

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

Detects executables manipulated with Fody

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

Detects executables referencing Discord tokens regular expressions

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

Detects executables referencing credit card regular expressions

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

Detects executables referencing many VPN software clients. Observed in infosteslers

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

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

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

Detects executables referencing many email and collaboration clients. Observed in information stealers

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

Detects executables with interest in wireless interface using netsh

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.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\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4848 wrote to memory of 3284 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 4848 wrote to memory of 3284 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 4848 wrote to memory of 3284 N/A C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe C:\Windows\SysWOW64\cmd.exe
PID 3284 wrote to memory of 1136 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3284 wrote to memory of 1136 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3284 wrote to memory of 1136 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3284 wrote to memory of 1292 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3284 wrote to memory of 1292 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3284 wrote to memory of 1292 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3284 wrote to memory of 4304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3284 wrote to memory of 4304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3284 wrote to memory of 4304 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe

"C:\Users\Admin\AppData\Local\Temp\b5690971684484c0c1f3b29f428e631ac18af0b8bf636ea0230a1b7fd082418b.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp5D62.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 4848

C:\Windows\SysWOW64\timeout.exe

Timeout /T 2 /Nobreak

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/4848-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

memory/4848-1-0x0000000000B40000-0x0000000000CD2000-memory.dmp

memory/4848-2-0x0000000005670000-0x00000000056D6000-memory.dmp

memory/4848-3-0x00000000748D0000-0x0000000075080000-memory.dmp

memory/4848-7-0x0000000005BF0000-0x0000000005C82000-memory.dmp

memory/4848-8-0x0000000005C80000-0x0000000005CA6000-memory.dmp

memory/4848-9-0x0000000005CB0000-0x0000000005CB8000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5D62.tmp.bat

MD5 0998d926b0b6feee262bc549214fe993
SHA1 a4872067d9695a2137c9375def30e84bd2d7470d
SHA256 842e3fc82905cc4f42416acd0c9cc2b5e593a8a719c4e822706f1abf5de3d6a0
SHA512 23a81de0831dc796bced38281309cca46f64ed6eb92c38e0bec91e93c1f98fc69e844cacbbc1246b9e9f45b69ebedf09cff9220521fddd3942885b65994b3eea

memory/4848-14-0x00000000748D0000-0x0000000075080000-memory.dmp