Malware Analysis Report

2025-08-11 00:33

Sample ID 240505-v3x72aga8z
Target d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc
SHA256 d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc
Tags
stealc discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc

Threat Level: Known bad

The file d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc was found to be: Known bad.

Malicious Activity Summary

stealc discovery spyware stealer

Stealc

Downloads MZ/PE file

Loads dropped DLL

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Enumerates physical storage devices

Unsigned PE

Program crash

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-05 17:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-05 17:31

Reported

2024-05-05 17:34

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe

"C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe"

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

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --mojo-platform-channel-handle=2916 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:3

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=3780 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4484 -ip 4484

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4484 -s 2416

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 185.172.128.150:80 185.172.128.150 tcp
US 8.8.8.8:53 150.128.172.185.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 122.10.44.20.in-addr.arpa udp

Files

memory/4484-1-0x0000000002D00000-0x0000000002E00000-memory.dmp

memory/4484-2-0x0000000002C70000-0x0000000002C97000-memory.dmp

memory/4484-3-0x0000000000400000-0x000000000063B000-memory.dmp

memory/4484-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

MD5 d751713988987e9331980363e24189ce
SHA1 97d170e1550eee4afc0af065b78cda302a97674c
SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512 b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

memory/4484-81-0x0000000000400000-0x0000000002B02000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

MD5 20d4b8fa017a12a108c87f540836e250
SHA1 1ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

memory/4484-96-0x0000000002D00000-0x0000000002E00000-memory.dmp

memory/4484-95-0x0000000000400000-0x0000000002B02000-memory.dmp

memory/4484-97-0x0000000002C70000-0x0000000002C97000-memory.dmp

memory/4484-98-0x0000000000400000-0x000000000063B000-memory.dmp

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/4484-104-0x0000000000400000-0x0000000002B02000-memory.dmp

memory/4484-106-0x0000000000400000-0x000000000063B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-05 17:31

Reported

2024-05-05 17:34

Platform

win11-20240426-en

Max time kernel

90s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe"

Signatures

Stealc

stealer stealc

Downloads MZ/PE file

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe

"C:\Users\Admin\AppData\Local\Temp\d1b502639e81960fb96040c544be3f66fa19f0a7ff4cfff874f7375ab851f6bc.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 764 -ip 764

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 2440

Network

Country Destination Domain Proto
DE 185.172.128.150:80 185.172.128.150 tcp
US 8.8.8.8:53 150.128.172.185.in-addr.arpa udp

Files

memory/764-3-0x0000000000400000-0x000000000063B000-memory.dmp

memory/764-2-0x0000000003070000-0x0000000003097000-memory.dmp

memory/764-1-0x0000000002CA0000-0x0000000002DA0000-memory.dmp

memory/764-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp

C:\ProgramData\nss3.dll

MD5 1cc453cdf74f31e4d913ff9c10acdde2
SHA1 6e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512 dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

C:\ProgramData\mozglue.dll

MD5 c8fd9be83bc728cc04beffafc2907fe9
SHA1 95ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512 fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

C:\ProgramData\Are.docx

MD5 a33e5b189842c5867f46566bdbf7a095
SHA1 e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA256 5abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512 f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b

memory/764-90-0x0000000000400000-0x000000000063B000-memory.dmp

memory/764-88-0x0000000000400000-0x0000000002B02000-memory.dmp