remcos | ed11a1720faafbb6e931be84e0159e6f57886ccc928e9c1bf007b4c6bf2c4d2b

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 17:07

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General

Target

OCBC.PaymentAdvice.pdf.exe
Size

25KB
MD5

3b545f7f4f5f5ae844a1743a51877f45
SHA1

5f423addc5664d4706a7bc1929e2f824848b12a6
SHA256

104b35f5d9c703f0c6b45ce79ec5c7023bf33681c303855ea03ceff56786dcef
SHA512

2b509774413dcb03fc83a82a20039d52f18b769ee83d21c7789628fe3967321479f6b6b11e5fb39740687d9763052188a0ced296679402d7e3f7dd4e449ac10e
SSDEEP

192:8/z/Yk+pxEnFgA/Wh764JziWHCEvNesGIN:q8vpxEnFgf76UvvNesJ

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

204.10.160.239:9682

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-6D4L9S
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

description pid process target process

PID 2484 created 3520 2484 OCBC.PaymentAdvice.pdf.exe Explorer.EXE
Drops startup file 1 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Capacity.vbs OCBC.PaymentAdvice.pdf.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

description pid process target process

PID 2484 set thread context of 4692 2484 OCBC.PaymentAdvice.pdf.exe OCBC.PaymentAdvice.pdf.exe

description	pid	process	target process
PID 2484 created 3520	2484	OCBC.PaymentAdvice.pdf.exe	Explorer.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Capacity.vbs	OCBC.PaymentAdvice.pdf.exe

description	pid	process	target process
PID 2484 set thread context of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

OCBC.PaymentAdvice.pdf.exeOCBC.PaymentAdvice.pdf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OCBC.PaymentAdvice.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OCBC.PaymentAdvice.pdf.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

pid process

2484 OCBC.PaymentAdvice.pdf.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

description pid process

Token: SeDebugPrivilege 2484 OCBC.PaymentAdvice.pdf.exe
Token: SeDebugPrivilege 2484 OCBC.PaymentAdvice.pdf.exe

pid	process
2484	OCBC.PaymentAdvice.pdf.exe

description	pid	process
Token: SeDebugPrivilege	2484	OCBC.PaymentAdvice.pdf.exe
Token: SeDebugPrivilege	2484	OCBC.PaymentAdvice.pdf.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

OCBC.PaymentAdvice.pdf.exe

description	pid	process	target process
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe
PID 2484 wrote to memory of 4692	2484	OCBC.PaymentAdvice.pdf.exe	OCBC.PaymentAdvice.pdf.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3520
- C:\Users\Admin\AppData\Local\Temp\OCBC.PaymentAdvice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\OCBC.PaymentAdvice.pdf.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2484
- C:\Users\Admin\AppData\Local\Temp\OCBC.PaymentAdvice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\OCBC.PaymentAdvice.pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2484-0-0x000000007478E000-0x000000007478F000-memory.dmp

Filesize
4KB

Download
memory/2484-1-0x0000000000190000-0x000000000019C000-memory.dmp

Filesize
48KB

Download
memory/2484-2-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-3-0x00000000062C0000-0x00000000063E4000-memory.dmp

Filesize
1.1MB

Download
memory/2484-4-0x00000000069C0000-0x0000000006F64000-memory.dmp

Filesize
5.6MB

Download
memory/2484-5-0x0000000006510000-0x00000000065A2000-memory.dmp

Filesize
584KB

Download
memory/2484-6-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-15-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-35-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-57-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-69-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-67-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-65-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-63-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-61-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-59-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-55-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-53-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-51-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-49-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-47-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-45-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-43-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-42-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-39-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-37-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-33-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-31-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-29-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-27-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-25-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-23-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-21-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-19-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-17-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-13-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-11-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-9-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-7-0x00000000062C0000-0x00000000063DE000-memory.dmp

Filesize
1.1MB

Download
memory/2484-1080-0x000000007478E000-0x000000007478F000-memory.dmp

Filesize
4KB

Download
memory/2484-1081-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-1082-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-1083-0x0000000006720000-0x00000000067B6000-memory.dmp

Filesize
600KB

Download
memory/2484-1084-0x0000000006F70000-0x0000000006FBC000-memory.dmp

Filesize
304KB

Download
memory/2484-1088-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-1089-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-1090-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/2484-1091-0x0000000002430000-0x0000000002484000-memory.dmp

Filesize
336KB

Download
memory/2484-1100-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/4692-1098-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4692-1106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download