Malware Analysis Report

2025-04-13 10:41

Sample ID 220507-yht7esfgam
Target df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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 df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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 19:47

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-07 19:47

Reported

2022-05-07 19:55

Platform

win10v2004-20220414-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3932 set thread context of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 3932 wrote to memory of 4748 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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 412 -p 4748 -ip 4748

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 1372

Network

Country Destination Domain Proto
NL 20.190.160.134:443 tcp
NL 20.190.160.134:443 tcp
NL 20.190.160.134:443 tcp
US 93.184.220.29:80 tcp
US 52.109.12.18:443 tcp
US 209.197.3.8:80 tcp
FR 2.18.109.224:443 tcp
US 209.197.3.8:80 tcp
SC 185.215.113.89:80 185.215.113.89 tcp
NL 20.190.160.73:443 tcp
NL 20.190.160.73:443 tcp
NL 20.190.160.73:443 tcp
IE 13.69.239.73:443 tcp
US 104.18.25.243:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 rockrock.ug udp
SC 185.215.113.89:80 rockrock.ug tcp
NL 20.190.160.132:443 tcp
NL 20.190.160.132:443 tcp
NL 20.190.160.132:443 tcp
NL 104.110.191.140:80 tcp
NL 104.110.191.140:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
NL 20.190.160.69:443 tcp
NL 20.190.160.69:443 tcp
NL 20.190.160.69:443 tcp
NL 20.190.160.71:443 tcp
NL 20.190.160.71:443 tcp
NL 20.190.160.71:443 tcp
NL 20.190.160.67:443 tcp
NL 20.190.160.67:443 tcp
NL 20.190.160.67:443 tcp

Files

memory/3932-130-0x0000000000F00000-0x0000000000F1E000-memory.dmp

memory/3932-131-0x0000000005CF0000-0x0000000006294000-memory.dmp

memory/3932-132-0x00000000057E0000-0x0000000005872000-memory.dmp

memory/3932-133-0x0000000005790000-0x000000000579A000-memory.dmp

memory/4748-134-0x0000000000000000-mapping.dmp

memory/4748-135-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4748-137-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4748-138-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4748-139-0x0000000060900000-0x0000000060992000-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 19:47

Reported

2022-05-07 19:55

Platform

win7-20220414-en

Max time kernel

149s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 660 set thread context of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 660 wrote to memory of 1220 N/A C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Processes

C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.exe

"C:\Users\Admin\AppData\Local\Temp\df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731.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
US 8.8.8.8:53 rockrock.ug udp
SC 185.215.113.89:80 rockrock.ug tcp
SC 185.215.113.89:80 rockrock.ug tcp

Files

memory/660-54-0x0000000000840000-0x000000000085E000-memory.dmp

memory/660-55-0x0000000075761000-0x0000000075763000-memory.dmp

memory/660-56-0x0000000008A30000-0x0000000008B94000-memory.dmp

memory/660-57-0x0000000004C70000-0x0000000004CB8000-memory.dmp

memory/1220-58-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-59-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-61-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-63-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-64-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-66-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-67-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-68-0x000000000043C0B2-mapping.dmp

memory/1220-70-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1220-71-0x0000000000400000-0x000000000043D000-memory.dmp