arkei | fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f

General

Target

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
Size

692KB
MD5

837547af8d2a1f60f8bbe09066f0ffa2
SHA1

727421a8ea79d0c0562870c33d055224c7c9a4bc
SHA256

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f
SHA512

579fe72723076eb6605660258caf1b8b2a2cf4f05c50f15c0a6a1d8226c13eb847ade0230e5bb1ba21c820e6b2ae0662b33725e65f7b43e0fb2f98c4e41d6961

Score

10^/10

arkei redline 04062022 default infostealer stealer

Malware Config

Extracted

Family

redline

Botnet

04062022

C2

62.204.41.166:27688

Attributes

auth_value
48182fe753fa2aff7472da064aa2a5d9

Extracted

Family

arkei

Botnet

Default

C2

http://62.204.41.69/p8jG9WvgbE.php

Signatures

Arkei
Arkei is an infostealer written in C++.
stealer arkei
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4556-140-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline
behavioral2/memory/4556-143-0x0000000000400000-0x0000000000424000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

dcaqbmme.exe

pid process

3324 dcaqbmme.exe

pid	process
3324	dcaqbmme.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exedcaqbmme.exe

description	pid	process	target process
PID 2388 set thread context of 5012	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
PID 3324 set thread context of 4556	3324	dcaqbmme.exe	regasm.exe

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

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exedcaqbmme.exe

pid process

2388 fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
3324 dcaqbmme.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exedcaqbmme.exe

pid process

2388 fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
3324 dcaqbmme.exe

pid	process
2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
3324	dcaqbmme.exe

pid	process
2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
3324	dcaqbmme.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exedcaqbmme.exe

description	pid	process	target process
PID 2388 wrote to memory of 3324	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	dcaqbmme.exe
PID 2388 wrote to memory of 3324	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	dcaqbmme.exe
PID 2388 wrote to memory of 3324	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	dcaqbmme.exe
PID 2388 wrote to memory of 5012	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
PID 2388 wrote to memory of 5012	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
PID 2388 wrote to memory of 5012	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
PID 2388 wrote to memory of 5012	2388	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe	fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
PID 3324 wrote to memory of 4556	3324	dcaqbmme.exe	regasm.exe
PID 3324 wrote to memory of 4556	3324	dcaqbmme.exe	regasm.exe
PID 3324 wrote to memory of 4556	3324	dcaqbmme.exe	regasm.exe
PID 3324 wrote to memory of 4556	3324	dcaqbmme.exe	regasm.exe

C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
"C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe
  "C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3324
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    PID:4556
- C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe
  "C:\Users\Admin\AppData\Local\Temp\fb368927d9051a0ed52610ad43849d1b0cdf2acee3bb1bf88c63e3fce54a4f0f.exe"
  2⤵
  PID:5012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
324KB

MD5
2652215d4d7a57fc45691bb1d53fb6ce

SHA1
15838b55aa4b2dc05ca09b2b958056fcb17776bd

SHA256
326923ce18fd7a9c8210697d8ffab62481db036588c12f05a21798fcf67bd9a6

SHA512
f4694966c4beb4e9cca674b85311de400f7c9ebf7eb9e0e271074281447513d562757bb477a7884b02ba9cdc8caf9b3952afcc0e66b9a36c6c167aa5e731ca59

Download Submit
C:\Users\Admin\AppData\Local\Temp\dcaqbmme.exe

Filesize
324KB

MD5
2652215d4d7a57fc45691bb1d53fb6ce

SHA1
15838b55aa4b2dc05ca09b2b958056fcb17776bd

SHA256
326923ce18fd7a9c8210697d8ffab62481db036588c12f05a21798fcf67bd9a6

SHA512
f4694966c4beb4e9cca674b85311de400f7c9ebf7eb9e0e271074281447513d562757bb477a7884b02ba9cdc8caf9b3952afcc0e66b9a36c6c167aa5e731ca59

Download Submit
memory/2388-139-0x0000000003500000-0x0000000003507000-memory.dmp

Filesize
28KB

Download
memory/3324-132-0x0000000000000000-mapping.dmp

Download
memory/4556-143-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4556-138-0x0000000000000000-mapping.dmp

Download
memory/4556-140-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4556-141-0x0000000005490000-0x0000000005AA8000-memory.dmp

Filesize
6.1MB

Download
memory/4556-142-0x0000000004F30000-0x0000000004F42000-memory.dmp

Filesize
72KB

Download
memory/4556-145-0x0000000005060000-0x000000000516A000-memory.dmp

Filesize
1.0MB

Download
memory/4556-146-0x0000000004F90000-0x0000000004FCC000-memory.dmp

Filesize
240KB

Download
memory/5012-137-0x0000000000000000-mapping.dmp

Download
memory/5012-144-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads