Malware Analysis Report

2024-08-06 12:47

Sample ID 240619-3cmbva1cqm
Target 763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56
SHA256 763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56
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

763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56

Threat Level: Known bad

The file 763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56 was found to be: Known bad.

Malicious Activity Summary

stealerium stealer

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

Detects executables referencing credit card regular expressions

Stealerium family

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

Detects executables manipulated with Fody

Detects executables with interest in wireless interface using netsh

Stealerium

Detects executables referencing Discord tokens regular expressions

Detects executables referencing many VPN software clients. Observed in infosteslers

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

Detects executables referencing Discord tokens regular expressions

Detects executables referencing credit card regular expressions

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

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

Detects executables with interest in wireless interface using netsh

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Kills process with taskkill

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

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

2024-06-19 23:22

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

2024-06-19 23:22

Reported

2024-06-19 23:24

Platform

win7-20240611-en

Max time kernel

118s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.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\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 840 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 840 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 840 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 840 wrote to memory of 2324 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 2324 wrote to memory of 376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2324 wrote to memory of 376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2324 wrote to memory of 376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2324 wrote to memory of 376 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 2324 wrote to memory of 656 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2324 wrote to memory of 656 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2324 wrote to memory of 656 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2324 wrote to memory of 656 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 2324 wrote to memory of 2380 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2324 wrote to memory of 2380 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2324 wrote to memory of 2380 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2324 wrote to memory of 2380 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe

"C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp91FB.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 840

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/840-0-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

memory/840-1-0x0000000001260000-0x00000000013F4000-memory.dmp

memory/840-2-0x0000000073F50000-0x000000007463E000-memory.dmp

memory/840-5-0x0000000001190000-0x0000000001222000-memory.dmp

memory/840-6-0x0000000000520000-0x0000000000546000-memory.dmp

memory/840-7-0x00000000004C0000-0x00000000004C8000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab8F27.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar8F88.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

C:\Users\Admin\AppData\Local\Temp\tmp91FB.tmp.bat

MD5 6f06aa0409ea0b5962cf0901c3f2a77f
SHA1 99f520e6ebaa12369d00b794350a2be1ce89d125
SHA256 3b68751f40dcf28642e10da5e1dc44ffacc08061f956c696d60afb3cf3cb5406
SHA512 2b6be5f41284424db8fc32842c19c188ad9b72b61ebacf54efd208b1e360b2192f64254b01c732e831fcf01f304dc866bc045a16f76c2526154f6e95c26fb4f5

memory/840-46-0x0000000073F50000-0x000000007463E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-19 23:22

Reported

2024-06-19 23:24

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.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\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1140 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 1140 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 1140 wrote to memory of 3276 N/A C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe C:\Windows\SysWOW64\cmd.exe
PID 3276 wrote to memory of 3192 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3276 wrote to memory of 3192 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3276 wrote to memory of 3192 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\chcp.com
PID 3276 wrote to memory of 1104 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3276 wrote to memory of 1104 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3276 wrote to memory of 1104 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\taskkill.exe
PID 3276 wrote to memory of 2468 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3276 wrote to memory of 2468 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3276 wrote to memory of 2468 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe

"C:\Users\Admin\AppData\Local\Temp\763522f54f492b03155678b83867905bab303416687f2bf033ba1777ad4bee56.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp37E4.tmp.bat

C:\Windows\SysWOW64\chcp.com

chcp 65001

C:\Windows\SysWOW64\taskkill.exe

TaskKill /F /IM 1140

C:\Windows\SysWOW64\timeout.exe

Timeout /T 2 /Nobreak

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3280 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
GB 142.250.178.10:443 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 discord.com udp
US 162.159.128.233:443 discord.com tcp
US 8.8.8.8:53 233.128.159.162.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 164.189.21.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 252.15.104.51.in-addr.arpa udp

Files

memory/1140-0-0x00000000752DE000-0x00000000752DF000-memory.dmp

memory/1140-1-0x0000000000350000-0x00000000004E4000-memory.dmp

memory/1140-2-0x0000000004E90000-0x0000000004EF6000-memory.dmp

memory/1140-3-0x00000000752D0000-0x0000000075A80000-memory.dmp

memory/1140-6-0x0000000005730000-0x00000000057C2000-memory.dmp

memory/1140-7-0x0000000004F80000-0x0000000004FA6000-memory.dmp

memory/1140-8-0x00000000057C0000-0x00000000057C8000-memory.dmp

memory/1140-12-0x00000000752DE000-0x00000000752DF000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp37E4.tmp.bat

MD5 ad0edf9876485136af81e8386ad3868d
SHA1 3be97f64a2292a1f40843e988b1f2e4bb6e88701
SHA256 152ae0f5b651349b1b15dca04b74a8c98a154e004a017d91d33f105778d1b5b0
SHA512 6269624959303f69e6c19ae0718a52dd866c28015c76dd4b9fb9d725075cf937c10143964d756d66c33ced56a2180c5e7b2d3f741e952b1e8c2067cc04e38734

memory/1140-14-0x00000000752D0000-0x0000000075A80000-memory.dmp