arkei | 6b82ba055be7f91eeaa1fb633fffdb3f124f941857d31258a8561365481568c9

General

Target
1d7812eadec5114e75f6c1f2caf2d166.exe
Size 306KB
Sample220118-w4cs6acdf4
SHA256 6b82ba055be7f91eeaa1fb633fffdb3f124f941857d31258a8561365481568c9
MD5 1d7812eadec5114e75f6c1f2caf2d166
SHA1 2918b5750985daa824c5deee6d49bad130a04de8
SHA512 c69ed9bcb1ce7da41e2579620f2417cd9fb15afd93b1d2b43aedd5aaadf59bf71fcd649afbe6af95f80d5e4da9973b00ecc629f0d8ba10c2db8dd35ca68eaf5b
MD5 SHA1 SHA512

Score

10^/10

arkei homesteadr discovery spyware stealer

Malware Config

Extracted

Family

arkei

Botnet

homesteadr

C2

http://homesteadr.link/ggate.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei

Arkei Stealer Payload 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1540-55-0x0000000000220000-0x000000000023C000-memory.dmp	family_arkei
behavioral1/memory/1540-56-0x0000000000400000-0x0000000000456000-memory.dmp	family_arkei

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
796	cmd.exe

Loads dropped DLL 5 IoCs

pid	Process
1540	1d7812eadec5114e75f6c1f2caf2d166.exe
1540	1d7812eadec5114e75f6c1f2caf2d166.exe
1540	1d7812eadec5114e75f6c1f2caf2d166.exe
1540	1d7812eadec5114e75f6c1f2caf2d166.exe
1540	1d7812eadec5114e75f6c1f2caf2d166.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	1d7812eadec5114e75f6c1f2caf2d166.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1d7812eadec5114e75f6c1f2caf2d166.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1564	timeout.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 796	1540	1d7812eadec5114e75f6c1f2caf2d166.exe	29
PID 1540 wrote to memory of 796	1540	1d7812eadec5114e75f6c1f2caf2d166.exe	29
PID 1540 wrote to memory of 796	1540	1d7812eadec5114e75f6c1f2caf2d166.exe	29
PID 1540 wrote to memory of 796	1540	1d7812eadec5114e75f6c1f2caf2d166.exe	29
PID 796 wrote to memory of 1564	796	cmd.exe	31
PID 796 wrote to memory of 1564	796	cmd.exe	31
PID 796 wrote to memory of 1564	796	cmd.exe	31
PID 796 wrote to memory of 1564	796	cmd.exe	31

C:\Users\Admin\AppData\Local\Temp\1d7812eadec5114e75f6c1f2caf2d166.exe
"C:\Users\Admin\AppData\Local\Temp\1d7812eadec5114e75f6c1f2caf2d166.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1d7812eadec5114e75f6c1f2caf2d166.exe" & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:796
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:1564

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

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Downloads

memory/1540-54-0x0000000000020000-0x0000000000030000-memory.dmp

Download

memory/1540-55-0x0000000000220000-0x000000000023C000-memory.dmp

Download

memory/1540-56-0x0000000000400000-0x0000000000456000-memory.dmp

Download

memory/1540-57-0x0000000076731000-0x0000000076733000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads