remcos | 2b1530546744e05fc3e002b3db398e90449e6eab2aa259a691f5fb5d7bf49664

General

Target

Alıntı.exe
Size

830KB
MD5

cb6f7aa8475416055d6a363c4c0617dd
SHA1

ceb31f102bd5d5bf63da93db0c44936b411de2e0
SHA256

2b1530546744e05fc3e002b3db398e90449e6eab2aa259a691f5fb5d7bf49664
SHA512

eb525403949ad3715c20183a4f5140f21a63b88895bc6ed9333f7684f43f409e6c14e956a6256df35526fa885a1a2ba719d2a006475e281d1f1c75a2c9727af1

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

whatgodcannotdodoestnotexist.duckdns.org:2559

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Alıntı.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rdyok = "C:\\Users\\Public\\Libraries\\koydR.url"	Alıntı.exe

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 19 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ieinstal.exe

pid process

4000 ieinstal.exe

description	flow	ioc
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
4000	ieinstal.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Alıntı.exe

description	pid	process	target process
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe
PID 3920 wrote to memory of 4000	3920	Alıntı.exe	ieinstal.exe

C:\Users\Admin\AppData\Local\Temp\Alıntı.exe
"C:\Users\Admin\AppData\Local\Temp\Alıntı.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3920

C:\Program Files (x86)\internet explorer\ieinstal.exe
"C:\Program Files (x86)\internet explorer\ieinstal.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:4000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3920-2-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/4000-4-0x0000000000000000-mapping.dmp

Download
memory/4000-3-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/4000-5-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/4000-7-0x0000000000680000-0x0000000000681000-memory.dmp

Filesize
4KB

Download
memory/4000-11-0x0000000010540000-0x0000000010565000-memory.dmp

Filesize
148KB

Download
memory/4000-13-0x0000000000A30000-0x0000000000A51000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing