arkei | 0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b

Analysis

max time kernel
156s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
08/05/2022, 01:48

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General

Target
0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
Size 392KB
Sample220508-b78psacab3
SHA256 0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b
MD5 5fea51478a01f10a78d428751e973aba
SHA1 cb7f1e3acc3636a6f890edb8c44d0abe2674ec1c
SHA512 47ea5c07b4d9d2bd5f9045906da94961f9d7d64e55c992435bdae2d21334daed98f096892da46f2bd18637f48ecac6bc80d6531c5a1cacceb7f3a46182e103c6
MD5 SHA1 SHA512

Score

10^/10

arkei redline 04062022 default infostealer stealer

Malware Config

Extracted

Family

redline

Botnet

04062022

62.204.41.166:27688

Attributes

auth_value
48182fe753fa2aff7472da064aa2a5d9

Extracted

Family

arkei

Botnet

Default

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

resource	yara_rule
behavioral2/memory/5040-140-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline
behavioral2/memory/5040-142-0x0000000000400000-0x0000000000424000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

pid	Process
4792	Fvdfggf.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 4948	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	82
PID 4792 set thread context of 5040	4792	Fvdfggf.exe	83

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

pid	Process
4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
4792	Fvdfggf.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
4792	Fvdfggf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 4792	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	81
PID 4260 wrote to memory of 4792	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	81
PID 4260 wrote to memory of 4792	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	81
PID 4260 wrote to memory of 4948	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	82
PID 4260 wrote to memory of 4948	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	82
PID 4260 wrote to memory of 4948	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	82
PID 4260 wrote to memory of 4948	4260	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	82
PID 4792 wrote to memory of 5040	4792	Fvdfggf.exe	83
PID 4792 wrote to memory of 5040	4792	Fvdfggf.exe	83
PID 4792 wrote to memory of 5040	4792	Fvdfggf.exe	83
PID 4792 wrote to memory of 5040	4792	Fvdfggf.exe	83

C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
"C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe
  "C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4792
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    PID:5040
- C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
  "C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe"
  2⤵
  PID:4948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Fvdfggf.exe

Path C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe
Size 172KB
SHA256 de8f8f5217cc3fca88d5261c8ad2c3115750ccf4f7bf3e7904760af2014959e3
MD5 e124d6fab64aa638922bc7861998fa8c
SHA1 3420d895a8ef834eaf85c800fb83b1eca0a7816e
SHA512 b456215751eeda2f5b633cd52b5b5d820d1dc96d9ec4f4f35fa4fa1c5859dd925c949f0f6270af80a12ede9f9ac45f4a979aea7f8d4da459ed05cd1b7bdd5ed7
SSDEEP 3072:2Mr0/lQvuCKOQ+CP/p6JBIMnL16q4nWPXYnSOpssOwBIGmcJHGLi1W81:QlQvSQzrZ6pn5SOpsNeJmU
MD5 SHA1 SHA512 SSDEEP

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Fvdfggf.exe

Path C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe
Size 172KB
SHA256 de8f8f5217cc3fca88d5261c8ad2c3115750ccf4f7bf3e7904760af2014959e3
MD5 e124d6fab64aa638922bc7861998fa8c
SHA1 3420d895a8ef834eaf85c800fb83b1eca0a7816e
SHA512 b456215751eeda2f5b633cd52b5b5d820d1dc96d9ec4f4f35fa4fa1c5859dd925c949f0f6270af80a12ede9f9ac45f4a979aea7f8d4da459ed05cd1b7bdd5ed7
SSDEEP 3072:2Mr0/lQvuCKOQ+CP/p6JBIMnL16q4nWPXYnSOpssOwBIGmcJHGLi1W81:QlQvSQzrZ6pn5SOpsNeJmU
MD5 SHA1 SHA512 SSDEEP

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memory/4792-139-0x00000000005D0000-0x00000000005D7000-memory.dmp

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memory/4948-141-0x0000000000400000-0x000000000043C000-memory.dmp

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memory/5040-140-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/5040-142-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/5040-143-0x0000000005F80000-0x0000000006598000-memory.dmp

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memory/5040-144-0x0000000005A00000-0x0000000005A12000-memory.dmp

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memory/5040-145-0x0000000005B30000-0x0000000005C3A000-memory.dmp

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memory/5040-146-0x0000000005A90000-0x0000000005ACC000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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