arkei | d7663038ffb23e071ff0f076f9d949685615400af2eefa25b30f9e79cd878671

General

Target

mixshop_20220103-042030.exe
Size

347KB
MD5

b74674e1f9d7c00f97d8ab0688fbe6dd
SHA1

b700d7098f670b4e71a6e4985bda422683e7faac
SHA256

d7663038ffb23e071ff0f076f9d949685615400af2eefa25b30f9e79cd878671
SHA512

fb8088182af255491c060b87e200400ca7368eb824604f81da35eaee7dad5679011de259d75b95a6092da93640ad901c0d8227d1edcbf76d33e42b6e221c4408

Score

10^/10

arkei homesteadr discovery spyware stealer suricata

Malware Config

Extracted

Family

arkei

Botnet

homesteadr

C2

http://homesteadr.link/ggate.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil
suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil
suricata

Arkei Stealer Payload 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1904-56-0x0000000000020000-0x000000000003C000-memory.dmp	family_arkei
behavioral1/memory/1904-57-0x0000000000400000-0x000000000046B000-memory.dmp	family_arkei

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
788	cmd.exe

Loads dropped DLL 5 IoCs

pid	Process
1904	mixshop_20220103-042030.exe
1904	mixshop_20220103-042030.exe
1904	mixshop_20220103-042030.exe
1904	mixshop_20220103-042030.exe
1904	mixshop_20220103-042030.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mixshop_20220103-042030.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mixshop_20220103-042030.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1788	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 788	1904	mixshop_20220103-042030.exe	29
PID 1904 wrote to memory of 788	1904	mixshop_20220103-042030.exe	29
PID 1904 wrote to memory of 788	1904	mixshop_20220103-042030.exe	29
PID 1904 wrote to memory of 788	1904	mixshop_20220103-042030.exe	29
PID 788 wrote to memory of 1788	788	cmd.exe	31
PID 788 wrote to memory of 1788	788	cmd.exe	31
PID 788 wrote to memory of 1788	788	cmd.exe	31
PID 788 wrote to memory of 1788	788	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\mixshop_20220103-042030.exe
"C:\Users\Admin\AppData\Local\Temp\mixshop_20220103-042030.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\mixshop_20220103-042030.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:788
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:1788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1904-55-0x00000000005AA000-0x00000000005BB000-memory.dmp

Filesize
68KB

Download
memory/1904-56-0x0000000000020000-0x000000000003C000-memory.dmp

Filesize
112KB

Download
memory/1904-57-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/1904-58-0x0000000076731000-0x0000000076733000-memory.dmp

Filesize
8KB

Download

Analysis

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