Malware Analysis Report

2025-04-13 10:41

Sample ID 220507-eqz8vsdhgp
Target ghjkl.exe
SHA256 df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731
Tags
arkei default spyware stealer suricata
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

df4876573295b4e7beb618db31a015ea617f61b811978bb168d432c4052f7731

Threat Level: Known bad

The file ghjkl.exe was found to be: Known bad.

Malicious Activity Summary

arkei default spyware stealer suricata

Arkei

suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

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

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

Executes dropped EXE

Downloads MZ/PE file

Checks computer location settings

Loads dropped DLL

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-07 04:09

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-07 04:09

Reported

2022-05-07 04:15

Platform

win7-20220414-en

Max time kernel

148s

Max time network

179s

Command Line

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

Signatures

Arkei

stealer arkei

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

suricata

suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

suricata

suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

suricata

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\azne.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ghjkl.exe N/A

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1312 set thread context of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1312 wrote to memory of 1588 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
PID 1588 wrote to memory of 1912 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Users\Admin\AppData\Roaming\azne.exe
PID 1588 wrote to memory of 1912 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Users\Admin\AppData\Roaming\azne.exe
PID 1588 wrote to memory of 1912 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Users\Admin\AppData\Roaming\azne.exe
PID 1588 wrote to memory of 1912 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe C:\Users\Admin\AppData\Roaming\azne.exe

Processes

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

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

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

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

C:\Users\Admin\AppData\Roaming\azne.exe

"C:\Users\Admin\AppData\Roaming\azne.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
SC 185.215.113.89:80 rockrock.ug tcp

Files

memory/1312-54-0x00000000009F0000-0x0000000000A0E000-memory.dmp

memory/1312-55-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

memory/1312-56-0x0000000008800000-0x0000000008964000-memory.dmp

memory/1312-57-0x0000000004C90000-0x0000000004CD8000-memory.dmp

memory/1588-58-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-59-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-61-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-63-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-64-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-66-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-68-0x000000000043C0B2-mapping.dmp

memory/1588-67-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-70-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-71-0x0000000000400000-0x000000000043D000-memory.dmp

memory/1588-73-0x0000000060900000-0x0000000060992000-memory.dmp

\ProgramData\nss3.dll

MD5 bfac4e3c5908856ba17d41edcd455a51
SHA1 8eec7e888767aa9e4cca8ff246eb2aacb9170428
SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
SHA512 2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

\ProgramData\mozglue.dll

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

\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

memory/1912-98-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

C:\Users\Admin\AppData\Roaming\azne.exe

MD5 683600b61a32d3eb2cd44cb34fdf7ab3
SHA1 e8bdd864c2610495850bf525cd1529c66c0b0b53
SHA256 26f35270f714065705474f3a330a9b7676c2d7e30b9cb9de57d726930768fe29
SHA512 5e85802a49875fadfff9bd2d1e4f04bb3e391709813757e14364b99f674e3e7fea757f861c2d811e9882035737d122ebfd4aa17039fdc08dc16f73028159e389

memory/1912-101-0x00000000003D0000-0x00000000003EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-07 04:09

Reported

2022-05-07 04:15

Platform

win10v2004-20220414-en

Max time kernel

135s

Max time network

163s

Command Line

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 968 set thread context of 4504 N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.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\ghjkl.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ghjkl.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

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

"C:\Users\Admin\AppData\Local\Temp\ghjkl.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 432 -p 4504 -ip 4504

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 1300

Network

Country Destination Domain Proto
NL 20.190.160.136:443 tcp
US 20.189.173.4:443 tcp
NL 20.190.160.69:443 tcp
NL 20.190.160.6:443 tcp
IE 20.54.89.15:443 tcp
NL 104.110.191.133:80 tcp
NL 104.123.41.162:80 tcp
NL 20.190.160.2:443 tcp
SC 185.215.113.89:80 185.215.113.89 tcp
US 8.8.8.8:53 97.97.242.52.in-addr.arpa udp
NL 20.190.160.4:443 tcp
US 8.8.8.8:53 d.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.5.0.8.0.0.3.0.1.3.0.6.2.ip6.arpa udp
US 8.8.8.8:53 rockrock.ug udp
SC 185.215.113.89:80 rockrock.ug tcp
NL 20.190.160.71:443 tcp

Files

memory/968-130-0x0000000000820000-0x000000000083E000-memory.dmp

memory/968-131-0x00000000057A0000-0x0000000005D44000-memory.dmp

memory/968-132-0x0000000005490000-0x0000000005522000-memory.dmp

memory/968-133-0x0000000005470000-0x000000000547A000-memory.dmp

memory/4504-134-0x0000000000000000-mapping.dmp

memory/4504-135-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4504-137-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4504-138-0x0000000000400000-0x000000000043D000-memory.dmp

memory/4504-139-0x0000000060900000-0x0000000060992000-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