remcos | fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791

General

Target

My Nigga.exe
Size

469KB
MD5

82602aed5a4328fd0f432ac95f05a500
SHA1

83c7d33c0d034ec89953986d191fe82e5f5ba297
SHA256

fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791
SHA512

afef8b35bbedbc91d4f5e196878c1f2f6564da216137e75cb7977e4c4563cf20d927552a722056ab4366bd29096098e3265c42e207e0eb55dbb351167413eaf9
SSDEEP

12288:umnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSqn9:WiLJbpI7I2WhQqZ7q9

Score

10^/10

remcos peterobi2023 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

PeterObi2023

C2

76.8.53.133:1198

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
sdfge.exe
delete_file
false
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
fghoiuytr.dat
keylog_flag
false
mouse_option
false
mutex
fghjcvbn-UURPOS
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
dfghrtyu
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 1 IoCs

Processes:

sdfge.exe

pid process

1520 sdfge.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

580 cmd.exe
580 cmd.exe

pid	process
1520	sdfge.exe

pid	process
580	cmd.exe
580	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

sdfge.exeMy Nigga.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	sdfge.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfghrtyu = "\"C:\\Users\\Admin\\AppData\\Roaming\\sdfge.exe\""	sdfge.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\	My Nigga.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\dfghrtyu = "\"C:\\Users\\Admin\\AppData\\Roaming\\sdfge.exe\""	My Nigga.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

sdfge.exe

description pid process target process

PID 1520 set thread context of 584 1520 sdfge.exe svchost.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 1 IoCs

Processes:

sdfge.exe

pid process

1520 sdfge.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

sdfge.exe

pid process

1520 sdfge.exe

description	pid	process	target process
PID 1520 set thread context of 584	1520	sdfge.exe	svchost.exe

pid	process
1520	sdfge.exe

pid	process
1520	sdfge.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

My Nigga.exeWScript.execmd.exesdfge.exe

description	pid	process	target process
PID 1204 wrote to memory of 1088	1204	My Nigga.exe	WScript.exe
PID 1204 wrote to memory of 1088	1204	My Nigga.exe	WScript.exe
PID 1204 wrote to memory of 1088	1204	My Nigga.exe	WScript.exe
PID 1204 wrote to memory of 1088	1204	My Nigga.exe	WScript.exe
PID 1088 wrote to memory of 580	1088	WScript.exe	cmd.exe
PID 1088 wrote to memory of 580	1088	WScript.exe	cmd.exe
PID 1088 wrote to memory of 580	1088	WScript.exe	cmd.exe
PID 1088 wrote to memory of 580	1088	WScript.exe	cmd.exe
PID 580 wrote to memory of 1520	580	cmd.exe	sdfge.exe
PID 580 wrote to memory of 1520	580	cmd.exe	sdfge.exe
PID 580 wrote to memory of 1520	580	cmd.exe	sdfge.exe
PID 580 wrote to memory of 1520	580	cmd.exe	sdfge.exe
PID 1520 wrote to memory of 584	1520	sdfge.exe	svchost.exe
PID 1520 wrote to memory of 584	1520	sdfge.exe	svchost.exe
PID 1520 wrote to memory of 584	1520	sdfge.exe	svchost.exe
PID 1520 wrote to memory of 584	1520	sdfge.exe	svchost.exe
PID 1520 wrote to memory of 584	1520	sdfge.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\My Nigga.exe
"C:\Users\Admin\AppData\Local\Temp\My Nigga.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1204

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
2⤵
- Suspicious use of WriteProcessMemory
PID:1088

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\sdfge.exe"
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:580

C:\Users\Admin\AppData\Roaming\sdfge.exe
C:\Users\Admin\AppData\Roaming\sdfge.exe
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\SysWOW64\svchost.exe
svchost.exe
5⤵
PID:584

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
Filesize
402B

MD5
98acdc6ea897431e57cab98ee8203874

SHA1
1858e36b790f415f850063b1aa291846a1b4b4b1

SHA256
e55d508c8f0fbfbb78d556fbd969e1611b95872b8f73f046e7c71c5c2804a50a

SHA512
ac41f7acb3be653f398066d353120935cc3764fdddb9346fddc6012f1d0e61a3a09a7a434806cab3654c37a1301d637081d921a634b1919b72d4e07e66b38aa7

Download Submit
C:\Users\Admin\AppData\Roaming\sdfge.exe
Filesize
469KB

MD5
82602aed5a4328fd0f432ac95f05a500

SHA1
83c7d33c0d034ec89953986d191fe82e5f5ba297

SHA256
fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791

SHA512
afef8b35bbedbc91d4f5e196878c1f2f6564da216137e75cb7977e4c4563cf20d927552a722056ab4366bd29096098e3265c42e207e0eb55dbb351167413eaf9

Download Submit
C:\Users\Admin\AppData\Roaming\sdfge.exe
Filesize
469KB

MD5
82602aed5a4328fd0f432ac95f05a500

SHA1
83c7d33c0d034ec89953986d191fe82e5f5ba297

SHA256
fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791

SHA512
afef8b35bbedbc91d4f5e196878c1f2f6564da216137e75cb7977e4c4563cf20d927552a722056ab4366bd29096098e3265c42e207e0eb55dbb351167413eaf9

Download Submit
\Users\Admin\AppData\Roaming\sdfge.exe
Filesize
469KB

MD5
82602aed5a4328fd0f432ac95f05a500

SHA1
83c7d33c0d034ec89953986d191fe82e5f5ba297

SHA256
fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791

SHA512
afef8b35bbedbc91d4f5e196878c1f2f6564da216137e75cb7977e4c4563cf20d927552a722056ab4366bd29096098e3265c42e207e0eb55dbb351167413eaf9

Download Submit
\Users\Admin\AppData\Roaming\sdfge.exe
Filesize
469KB

MD5
82602aed5a4328fd0f432ac95f05a500

SHA1
83c7d33c0d034ec89953986d191fe82e5f5ba297

SHA256
fbf0d947bf22491229799e2ddaca2484d24b1cd7e4be6945758a9a153cc98791

SHA512
afef8b35bbedbc91d4f5e196878c1f2f6564da216137e75cb7977e4c4563cf20d927552a722056ab4366bd29096098e3265c42e207e0eb55dbb351167413eaf9

Download Submit
memory/580-58-0x0000000000000000-mapping.dmp

Download
memory/584-65-0x00000000000B27A4-mapping.dmp

Download
memory/584-67-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/1088-55-0x0000000000000000-mapping.dmp

Download
memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

Filesize
8KB

Download
memory/1520-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing