remcos | 992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

General

Target

187e55965acaf3a1b7d4af227b8a97f8.exe
Size

1.2MB
MD5

187e55965acaf3a1b7d4af227b8a97f8
SHA1

c1a0f081459ba0595aa85a5c14998a853aede3f5
SHA256

992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621
SHA512

5be926becd069650db79138c6ae7f279193bf17d9e319c5f365d67707a81ae32753c7284ce1a50528e91456b1b4663a59cd3661221a591408f2ec88d6c999fbb

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu:1996

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

win.exewin.exe

pid process

3948 win.exe
200 win.exe

pid	process
3948	win.exe
200	win.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

187e55965acaf3a1b7d4af227b8a97f8.exewin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	187e55965acaf3a1b7d4af227b8a97f8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	187e55965acaf3a1b7d4af227b8a97f8.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

187e55965acaf3a1b7d4af227b8a97f8.exewin.exe

description	pid	process	target process
PID 1456 set thread context of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 3948 set thread context of 200	3948	win.exe	win.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

187e55965acaf3a1b7d4af227b8a97f8.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	187e55965acaf3a1b7d4af227b8a97f8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

200 win.exe

pid	process
200	win.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

187e55965acaf3a1b7d4af227b8a97f8.exe187e55965acaf3a1b7d4af227b8a97f8.exeWScript.execmd.exewin.exe

description	pid	process	target process
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 1456 wrote to memory of 804	1456	187e55965acaf3a1b7d4af227b8a97f8.exe	187e55965acaf3a1b7d4af227b8a97f8.exe
PID 804 wrote to memory of 572	804	187e55965acaf3a1b7d4af227b8a97f8.exe	WScript.exe
PID 804 wrote to memory of 572	804	187e55965acaf3a1b7d4af227b8a97f8.exe	WScript.exe
PID 804 wrote to memory of 572	804	187e55965acaf3a1b7d4af227b8a97f8.exe	WScript.exe
PID 572 wrote to memory of 2256	572	WScript.exe	cmd.exe
PID 572 wrote to memory of 2256	572	WScript.exe	cmd.exe
PID 572 wrote to memory of 2256	572	WScript.exe	cmd.exe
PID 2256 wrote to memory of 3948	2256	cmd.exe	win.exe
PID 2256 wrote to memory of 3948	2256	cmd.exe	win.exe
PID 2256 wrote to memory of 3948	2256	cmd.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe
PID 3948 wrote to memory of 200	3948	win.exe	win.exe

C:\Users\Admin\AppData\Local\Temp\187e55965acaf3a1b7d4af227b8a97f8.exe
"C:\Users\Admin\AppData\Local\Temp\187e55965acaf3a1b7d4af227b8a97f8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1456

C:\Users\Admin\AppData\Local\Temp\187e55965acaf3a1b7d4af227b8a97f8.exe
"C:\Users\Admin\AppData\Local\Temp\187e55965acaf3a1b7d4af227b8a97f8.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:804

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:572

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:2256

C:\Users\Admin\AppData\Roaming\win.exe
C:\Users\Admin\AppData\Roaming\win.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3948

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:200

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\install.vbs
MD5
4a74e626596d6e66b4bbc59ee6848f2d

SHA1
047849ac8735ecc0943428c7cd5e00b52eee06ed

SHA256
98bd6dc219a7a3e04d3d67bbec9f0b4d4640831a3a6be0a0078b050041088b0e

SHA512
1cd943482d0f1ce2ffaf6ee4a82895e4d57c52051bb14bbda0548cf072b4c5cbe719d2cdb549b5ae7c0241dd9c68dd9d1674acd26aed684b8145500079cc5403

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
187e55965acaf3a1b7d4af227b8a97f8

SHA1
c1a0f081459ba0595aa85a5c14998a853aede3f5

SHA256
992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

SHA512
5be926becd069650db79138c6ae7f279193bf17d9e319c5f365d67707a81ae32753c7284ce1a50528e91456b1b4663a59cd3661221a591408f2ec88d6c999fbb

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
187e55965acaf3a1b7d4af227b8a97f8

SHA1
c1a0f081459ba0595aa85a5c14998a853aede3f5

SHA256
992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

SHA512
5be926becd069650db79138c6ae7f279193bf17d9e319c5f365d67707a81ae32753c7284ce1a50528e91456b1b4663a59cd3661221a591408f2ec88d6c999fbb

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
187e55965acaf3a1b7d4af227b8a97f8

SHA1
c1a0f081459ba0595aa85a5c14998a853aede3f5

SHA256
992ff2cda226636077c32a5481799a950354f4a647bc6a5266cd8b1820902621

SHA512
5be926becd069650db79138c6ae7f279193bf17d9e319c5f365d67707a81ae32753c7284ce1a50528e91456b1b4663a59cd3661221a591408f2ec88d6c999fbb

Download Submit
memory/200-138-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/200-136-0x0000000000413FA4-mapping.dmp

Download
memory/572-123-0x0000000000000000-mapping.dmp

Download
memory/804-120-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/804-121-0x0000000000413FA4-mapping.dmp

Download
memory/804-122-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1456-119-0x0000000003540000-0x00000000035DC000-memory.dmp

Filesize
624KB

Download
memory/1456-114-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

Filesize
4KB

Download
memory/1456-118-0x0000000006440000-0x0000000006441000-memory.dmp

Filesize
4KB

Download
memory/1456-117-0x0000000003540000-0x000000000356B000-memory.dmp

Filesize
172KB

Download
memory/1456-116-0x0000000005A60000-0x0000000005A61000-memory.dmp

Filesize
4KB

Download
memory/2256-125-0x0000000000000000-mapping.dmp

Download
memory/3948-126-0x0000000000000000-mapping.dmp

Download
memory/3948-134-0x0000000005480000-0x0000000005481000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads