remcos | 0e67ac2d835d51975b1f8cde8ab3eacfa184fd4dad00b83632f214740c0a94c2

General

Target

f6dc84a64d99e09993ed396dc2dd5b80.exe
Size

1.2MB
MD5

f6dc84a64d99e09993ed396dc2dd5b80
SHA1

e36d570d720afc692a7c3f6e2e8cfac89448a54c
SHA256

0e67ac2d835d51975b1f8cde8ab3eacfa184fd4dad00b83632f214740c0a94c2
SHA512

9b1ef8710707bef6dc625c70514fd692e18d16ba42dcc83f7ecb85ddff5db863826eb8e0618783c3e51cf0ec27f0ede29bee5ad978ced30f7eaec37642d534a6

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu:2177

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

3300 win.exe
2132 win.exe

pid	process
3300	win.exe
2132	win.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f6dc84a64d99e09993ed396dc2dd5b80.exewin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	f6dc84a64d99e09993ed396dc2dd5b80.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	f6dc84a64d99e09993ed396dc2dd5b80.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f6dc84a64d99e09993ed396dc2dd5b80.exewin.exe

description	pid	process	target process
PID 2016 set thread context of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 3300 set thread context of 2132	3300	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:

f6dc84a64d99e09993ed396dc2dd5b80.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000_Classes\Local Settings	f6dc84a64d99e09993ed396dc2dd5b80.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

2132 win.exe

pid	process
2132	win.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

f6dc84a64d99e09993ed396dc2dd5b80.exef6dc84a64d99e09993ed396dc2dd5b80.exeWScript.execmd.exewin.exe

description	pid	process	target process
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 2016 wrote to memory of 1276	2016	f6dc84a64d99e09993ed396dc2dd5b80.exe	f6dc84a64d99e09993ed396dc2dd5b80.exe
PID 1276 wrote to memory of 2848	1276	f6dc84a64d99e09993ed396dc2dd5b80.exe	WScript.exe
PID 1276 wrote to memory of 2848	1276	f6dc84a64d99e09993ed396dc2dd5b80.exe	WScript.exe
PID 1276 wrote to memory of 2848	1276	f6dc84a64d99e09993ed396dc2dd5b80.exe	WScript.exe
PID 2848 wrote to memory of 3816	2848	WScript.exe	cmd.exe
PID 2848 wrote to memory of 3816	2848	WScript.exe	cmd.exe
PID 2848 wrote to memory of 3816	2848	WScript.exe	cmd.exe
PID 3816 wrote to memory of 3300	3816	cmd.exe	win.exe
PID 3816 wrote to memory of 3300	3816	cmd.exe	win.exe
PID 3816 wrote to memory of 3300	3816	cmd.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe
PID 3300 wrote to memory of 2132	3300	win.exe	win.exe

C:\Users\Admin\AppData\Local\Temp\f6dc84a64d99e09993ed396dc2dd5b80.exe
"C:\Users\Admin\AppData\Local\Temp\f6dc84a64d99e09993ed396dc2dd5b80.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Local\Temp\f6dc84a64d99e09993ed396dc2dd5b80.exe
"C:\Users\Admin\AppData\Local\Temp\f6dc84a64d99e09993ed396dc2dd5b80.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1276

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:2848

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:3816

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:3300

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:2132

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

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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
f6dc84a64d99e09993ed396dc2dd5b80

SHA1
e36d570d720afc692a7c3f6e2e8cfac89448a54c

SHA256
0e67ac2d835d51975b1f8cde8ab3eacfa184fd4dad00b83632f214740c0a94c2

SHA512
9b1ef8710707bef6dc625c70514fd692e18d16ba42dcc83f7ecb85ddff5db863826eb8e0618783c3e51cf0ec27f0ede29bee5ad978ced30f7eaec37642d534a6

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
f6dc84a64d99e09993ed396dc2dd5b80

SHA1
e36d570d720afc692a7c3f6e2e8cfac89448a54c

SHA256
0e67ac2d835d51975b1f8cde8ab3eacfa184fd4dad00b83632f214740c0a94c2

SHA512
9b1ef8710707bef6dc625c70514fd692e18d16ba42dcc83f7ecb85ddff5db863826eb8e0618783c3e51cf0ec27f0ede29bee5ad978ced30f7eaec37642d534a6

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
f6dc84a64d99e09993ed396dc2dd5b80

SHA1
e36d570d720afc692a7c3f6e2e8cfac89448a54c

SHA256
0e67ac2d835d51975b1f8cde8ab3eacfa184fd4dad00b83632f214740c0a94c2

SHA512
9b1ef8710707bef6dc625c70514fd692e18d16ba42dcc83f7ecb85ddff5db863826eb8e0618783c3e51cf0ec27f0ede29bee5ad978ced30f7eaec37642d534a6

Download Submit
memory/1276-123-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1276-121-0x0000000000413FA4-mapping.dmp

Download
memory/1276-120-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2016-114-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2016-119-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/2016-118-0x00000000053E0000-0x00000000053E1000-memory.dmp

Filesize
4KB

Download
memory/2016-117-0x0000000002490000-0x00000000024BB000-memory.dmp

Filesize
172KB

Download
memory/2016-116-0x0000000004A40000-0x0000000004A41000-memory.dmp

Filesize
4KB

Download
memory/2132-136-0x0000000000413FA4-mapping.dmp

Download
memory/2132-138-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2848-122-0x0000000000000000-mapping.dmp

Download
memory/3300-126-0x0000000000000000-mapping.dmp

Download
memory/3300-134-0x00000000057A0000-0x00000000057A1000-memory.dmp

Filesize
4KB

Download
memory/3816-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads