arkei | 5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326

General

Target
5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe
Size 334KB
Sample220117-sm25yaaha2
SHA256 5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326
MD5 1188bc52b0ec4e95fb03f5f29d7453f0
SHA1 effafe44d91cac9eb3774daac610a30ace6853a9
SHA512 27db249b046c1d53e37922b75423b0dd19d36593f918ed619c07ab994cdf5bcf73d229a127b14cf9a36cf9a264bcf53d265798924b589f734303847eb9dbec85
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/3328-116-0x0000000000740000-0x000000000075C000-memory.dmp	family_arkei
behavioral1/memory/3328-117-0x0000000000400000-0x00000000005DB000-memory.dmp	family_arkei

Downloads MZ/PE file

Loads dropped DLL 3 IoCs

pid	Process
3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe
3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe
3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4500	timeout.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3328 wrote to memory of 4556	3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe	69
PID 3328 wrote to memory of 4556	3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe	69
PID 3328 wrote to memory of 4556	3328	5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe	69
PID 4556 wrote to memory of 4500	4556	cmd.exe	71
PID 4556 wrote to memory of 4500	4556	cmd.exe	71
PID 4556 wrote to memory of 4500	4556	cmd.exe	71

C:\Users\Admin\AppData\Local\Temp\5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe
"C:\Users\Admin\AppData\Local\Temp\5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3328
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5a694697d35ffe0c0f1f48d67b674b8de448fd217860240175c760c505dfd326.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4556
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - Delays execution with timeout.exe
    PID:4500

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/3328-115-0x00000000008F6000-0x0000000000907000-memory.dmp

Download

memory/3328-116-0x0000000000740000-0x000000000075C000-memory.dmp

Download

memory/3328-117-0x0000000000400000-0x00000000005DB000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads