arkei | 0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b

General

Target

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
Size

392KB
MD5

5fea51478a01f10a78d428751e973aba
SHA1

cb7f1e3acc3636a6f890edb8c44d0abe2674ec1c
SHA256

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b
SHA512

47ea5c07b4d9d2bd5f9045906da94961f9d7d64e55c992435bdae2d21334daed98f096892da46f2bd18637f48ecac6bc80d6531c5a1cacceb7f3a46182e103c6

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/1996-145-0x0000000000400000-0x0000000000420000-memory.dmp	family_redline
behavioral2/memory/1996-149-0x0000000000400000-0x0000000000424000-memory.dmp	family_redline

Executes dropped EXE 1 IoCs

Processes:

Fvdfggf.exe

pid process

2688 Fvdfggf.exe

pid	process
2688	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

Processes:

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exeFvdfggf.exe

description	pid	process	target process
PID 5100 set thread context of 860	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
PID 2688 set thread context of 1996	2688	Fvdfggf.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 4 IoCs

Processes:

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exeFvdfggf.exe

pid process

5100 0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
2688 Fvdfggf.exe
2688 Fvdfggf.exe
2688 Fvdfggf.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exeFvdfggf.exe

pid process

5100 0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
2688 Fvdfggf.exe

pid	process
5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
2688	Fvdfggf.exe
2688	Fvdfggf.exe
2688	Fvdfggf.exe

pid	process
5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
2688	Fvdfggf.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exeFvdfggf.exe

description	pid	process	target process
PID 5100 wrote to memory of 2688	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	Fvdfggf.exe
PID 5100 wrote to memory of 2688	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	Fvdfggf.exe
PID 5100 wrote to memory of 2688	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	Fvdfggf.exe
PID 5100 wrote to memory of 860	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
PID 5100 wrote to memory of 860	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
PID 5100 wrote to memory of 860	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
PID 5100 wrote to memory of 860	5100	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe	0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
PID 2688 wrote to memory of 1596	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1596	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1596	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1596	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 4144	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 4144	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 4144	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 4144	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1996	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1996	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1996	2688	Fvdfggf.exe	regasm.exe
PID 2688 wrote to memory of 1996	2688	Fvdfggf.exe	regasm.exe

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:5100

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:2688

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
3⤵
PID:1596

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
3⤵
PID:4144

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
3⤵
PID:1996

C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe
"C:\Users\Admin\AppData\Local\Temp\0f63b4b4659449eee766610af817b786e9cd7622743851cf7b71430613d7521b.exe"
2⤵
PID:860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe
Filesize
172KB

MD5
e124d6fab64aa638922bc7861998fa8c

SHA1
3420d895a8ef834eaf85c800fb83b1eca0a7816e

SHA256
de8f8f5217cc3fca88d5261c8ad2c3115750ccf4f7bf3e7904760af2014959e3

SHA512
b456215751eeda2f5b633cd52b5b5d820d1dc96d9ec4f4f35fa4fa1c5859dd925c949f0f6270af80a12ede9f9ac45f4a979aea7f8d4da459ed05cd1b7bdd5ed7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Fvdfggf.exe
Filesize
172KB

MD5
e124d6fab64aa638922bc7861998fa8c

SHA1
3420d895a8ef834eaf85c800fb83b1eca0a7816e

SHA256
de8f8f5217cc3fca88d5261c8ad2c3115750ccf4f7bf3e7904760af2014959e3

SHA512
b456215751eeda2f5b633cd52b5b5d820d1dc96d9ec4f4f35fa4fa1c5859dd925c949f0f6270af80a12ede9f9ac45f4a979aea7f8d4da459ed05cd1b7bdd5ed7

Download Submit
memory/860-140-0x0000000000000000-mapping.dmp

Download
memory/860-150-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1596-142-0x0000000000000000-mapping.dmp

Download
memory/1996-146-0x0000000005680000-0x0000000005C98000-memory.dmp

Filesize
6.1MB

Download
memory/1996-144-0x0000000000000000-mapping.dmp

Download
memory/1996-145-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1996-147-0x0000000005120000-0x0000000005132000-memory.dmp

Filesize
72KB

Download
memory/1996-148-0x0000000005250000-0x000000000535A000-memory.dmp

Filesize
1.0MB

Download
memory/1996-149-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1996-151-0x0000000005180000-0x00000000051BC000-memory.dmp

Filesize
240KB

Download
memory/2688-135-0x0000000000000000-mapping.dmp

Download
memory/4144-143-0x0000000000000000-mapping.dmp

Download
memory/5100-141-0x00000000034C0000-0x00000000034C7000-memory.dmp

Filesize
28KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads