Malware Analysis Report

2024-10-19 02:14

Sample ID 231222-e33jradecl
Target 6425d2a508b8a9399fa2e99f536e4dba
SHA256 0a8d06e600d240b442089a927590cc564a921884e130cc2d0d962be7463cec4e
Tags
arkei default stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

0a8d06e600d240b442089a927590cc564a921884e130cc2d0d962be7463cec4e

Threat Level: Known bad

The file 6425d2a508b8a9399fa2e99f536e4dba was found to be: Known bad.

Malicious Activity Summary

arkei default stealer

Arkei

Suspicious use of SetThreadContext

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-22 04:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-22 04:28

Reported

2023-12-22 08:05

Platform

win7-20231215-en

Max time kernel

121s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

Signatures

Arkei

stealer arkei

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2884 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe
PID 2116 wrote to memory of 2888 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

Processes

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

Network

N/A

Files

memory/2116-0-0x00000000746C0000-0x0000000074DAE000-memory.dmp

memory/2116-1-0x0000000000870000-0x0000000000C02000-memory.dmp

memory/2116-2-0x0000000005030000-0x0000000005070000-memory.dmp

memory/2116-3-0x0000000005030000-0x0000000005070000-memory.dmp

memory/2116-4-0x0000000004640000-0x000000000465E000-memory.dmp

memory/2736-5-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2116-18-0x0000000002420000-0x0000000002428000-memory.dmp

memory/2736-19-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2736-17-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2736-15-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2736-13-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2736-11-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2736-9-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2736-7-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2888-28-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2888-33-0x0000000000401000-0x0000000000413000-memory.dmp

memory/2116-34-0x00000000746C0000-0x0000000074DAE000-memory.dmp

memory/2116-35-0x0000000005030000-0x0000000005070000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-22 04:28

Reported

2023-12-22 08:04

Platform

win10v2004-20231215-en

Max time kernel

135s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

Signatures

Arkei

stealer arkei

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 972 set thread context of 3712 N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 972 -s 1264

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 972 -ip 972

C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe

"C:\Users\Admin\AppData\Local\Temp\6425d2a508b8a9399fa2e99f536e4dba.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 972 -ip 972

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 972 -s 1264

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 17.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp

Files

memory/972-4-0x0000000005420000-0x00000000054B2000-memory.dmp

memory/972-3-0x0000000005930000-0x0000000005ED4000-memory.dmp

memory/972-2-0x00000000052E0000-0x000000000537C000-memory.dmp

memory/972-5-0x0000000005660000-0x0000000005670000-memory.dmp

memory/972-7-0x0000000005670000-0x00000000056C6000-memory.dmp

memory/972-6-0x00000000053E0000-0x00000000053EA000-memory.dmp

memory/972-1-0x0000000074DB0000-0x0000000075560000-memory.dmp

memory/972-0-0x00000000005C0000-0x0000000000952000-memory.dmp

memory/972-8-0x0000000005660000-0x0000000005670000-memory.dmp

memory/972-9-0x0000000006B00000-0x0000000006B1E000-memory.dmp

memory/3712-13-0x0000000000400000-0x000000000041B000-memory.dmp

memory/3712-15-0x0000000000400000-0x000000000041B000-memory.dmp

memory/3712-14-0x0000000000400000-0x000000000041B000-memory.dmp

memory/972-11-0x0000000006AE0000-0x0000000006AE8000-memory.dmp

memory/3712-10-0x0000000000400000-0x000000000041B000-memory.dmp

memory/972-16-0x0000000074DB0000-0x0000000075560000-memory.dmp