Malware Analysis Report

2025-04-13 10:41

Sample ID 220507-elnz2adgaq
Target asdf.EXE
SHA256 df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
Tags
arkei default stealer suricata
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

Threat Level: Known bad

The file asdf.EXE was found to be: Known bad.

Malicious Activity Summary

arkei default stealer suricata

Arkei

suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

Checks computer location settings

Loads dropped DLL

Suspicious use of SetThreadContext

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-07 04:01

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-07 04:01

Reported

2022-05-07 04:04

Platform

win10v2004-20220414-en

Max time kernel

138s

Max time network

154s

Command Line

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

Signatures

Arkei

stealer arkei

suricata: ET MALWARE Base64 Encoded Stealer Config from Server - APPDATA or USERPROFILE Environment Variable M4

suricata

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\asdf.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3936 set thread context of 460 N/A C:\Users\Admin\AppData\Local\Temp\asdf.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 460 -ip 460

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 460 -s 1360

Network

Country Destination Domain Proto
NL 20.190.160.9:443 tcp
US 8.247.211.126:80 tcp
US 93.184.220.29:80 tcp
NL 20.190.160.9:443 tcp
US 8.247.211.126:80 tcp
US 8.247.211.126:80 tcp
US 93.184.220.29:80 tcp
SC 185.215.113.89:80 185.215.113.89 tcp
US 93.184.220.29:80 tcp
GB 51.104.15.253:443 tcp
US 8.8.8.8:53 rockrock.ug udp
SC 185.215.113.89:80 rockrock.ug tcp
US 8.247.211.126:80 tcp
US 8.247.211.126:80 tcp
US 8.247.211.126:80 tcp
NL 20.190.160.135:443 tcp
US 93.184.220.29:80 tcp

Files

memory/3936-130-0x0000000000FE0000-0x0000000000FFE000-memory.dmp

memory/3936-131-0x0000000006020000-0x00000000065C4000-memory.dmp

memory/3936-132-0x0000000005990000-0x0000000005A22000-memory.dmp

memory/3936-133-0x0000000005A40000-0x0000000005A4A000-memory.dmp

memory/460-134-0x0000000000000000-mapping.dmp

memory/460-135-0x0000000000400000-0x000000000043D000-memory.dmp

memory/460-137-0x0000000000400000-0x000000000043D000-memory.dmp

memory/460-138-0x0000000000400000-0x000000000043D000-memory.dmp

memory/460-139-0x0000000060900000-0x0000000060992000-memory.dmp

C:\ProgramData\nss3.dll

MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

C:\ProgramData\mozglue.dll

MD5 8f73c08a9660691143661bf7332c3c27
SHA1 37fa65dd737c50fda710fdbde89e51374d0c204a
SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
SHA512 0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-07 04:01

Reported

2022-05-07 04:04

Platform

win7-20220414-en

Max time kernel

152s

Max time network

146s

Command Line

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

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\asdf.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Network

Country Destination Domain Proto
SC 185.215.113.89:80 185.215.113.89 tcp

Files

memory/2020-54-0x0000000000070000-0x000000000008E000-memory.dmp

memory/2020-55-0x0000000076261000-0x0000000076263000-memory.dmp

memory/2020-56-0x0000000008A90000-0x0000000008BF4000-memory.dmp

memory/2020-57-0x0000000005C80000-0x0000000005CC8000-memory.dmp