remcos | 062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
20-05-2024 16:06

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General

Target

PEDIDO DE COMPRA I122825.exe
Size

975KB
MD5

6bc3017aa0b572802c23e8fad4c7a612
SHA1

262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1
SHA256

062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5
SHA512

86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354
SSDEEP

24576:8LZq8lDaXLp5C7UMUoloIG8h3IP8trNwNoZ:8oUDaXLnC7Ia68FCO

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

46.183.223.69:13452

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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-UJROWN
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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 2 IoCs

Processes:

remcos.exeremcos.exe

pid process

2508 remcos.exe
2556 remcos.exe
Loads dropped DLL 1 IoCs

Processes:

PEDIDO DE COMPRA I122825.exe

pid process

3036 PEDIDO DE COMPRA I122825.exe

pid	process
2508	remcos.exe
2556	remcos.exe

pid	process
3036	PEDIDO DE COMPRA I122825.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

PEDIDO DE COMPRA I122825.exeremcos.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	PEDIDO DE COMPRA I122825.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	PEDIDO DE COMPRA I122825.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

PEDIDO DE COMPRA I122825.exeremcos.exe

description	pid	process	target process
PID 1776 set thread context of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 2508 set thread context of 2556	2508	remcos.exe	remcos.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

2556 remcos.exe

pid	process
2556	remcos.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

PEDIDO DE COMPRA I122825.exePEDIDO DE COMPRA I122825.exeremcos.exe

description	pid	process	target process
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 1776 wrote to memory of 3036	1776	PEDIDO DE COMPRA I122825.exe	PEDIDO DE COMPRA I122825.exe
PID 3036 wrote to memory of 2508	3036	PEDIDO DE COMPRA I122825.exe	remcos.exe
PID 3036 wrote to memory of 2508	3036	PEDIDO DE COMPRA I122825.exe	remcos.exe
PID 3036 wrote to memory of 2508	3036	PEDIDO DE COMPRA I122825.exe	remcos.exe
PID 3036 wrote to memory of 2508	3036	PEDIDO DE COMPRA I122825.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe
PID 2508 wrote to memory of 2556	2508	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe
"C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe
  "C:\Users\Admin\AppData\Local\Temp\PEDIDO DE COMPRA I122825.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2508
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetWindowsHookEx
      PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Remcos\logs.dat

Filesize
144B

MD5
17b413066cb46c3423032176a3745ef7

SHA1
2b7f449b0418e5ac802526703de588ffe6e455d8

SHA256
4c1dd26d2c1727e18ef049eb3d375a884891a5bad8083d0e350d2b7e27475e76

SHA512
d202f1ecc24fea1739aa53a0f73d60fc45eb13737b420a6d0a08028445f0a9ada57154d79d816fec7a99abeaa404aec94b72acec9b10428993d12cf2979a2c0b

Download Submit
C:\ProgramData\Remcos\remcos.exe

Filesize
975KB

MD5
6bc3017aa0b572802c23e8fad4c7a612

SHA1
262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1

SHA256
062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

SHA512
86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354

Download Submit
memory/1776-6-0x0000000000520000-0x0000000000530000-memory.dmp

Filesize
64KB

Download
memory/1776-3-0x0000000005BC0000-0x0000000005CBA000-memory.dmp

Filesize
1000KB

Download
memory/1776-4-0x00000000005B0000-0x00000000005D2000-memory.dmp

Filesize
136KB

Download
memory/1776-5-0x00000000005D0000-0x00000000005DC000-memory.dmp

Filesize
48KB

Download
memory/1776-30-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/1776-7-0x000000000D4A0000-0x000000000D560000-memory.dmp

Filesize
768KB

Download
memory/1776-2-0x0000000074DF0000-0x00000000754DE000-memory.dmp

Filesize
6.9MB

Download
memory/1776-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/1776-1-0x00000000010B0000-0x00000000011AA000-memory.dmp

Filesize
1000KB

Download
memory/2508-64-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-37-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-38-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2508-36-0x0000000000300000-0x00000000003FA000-memory.dmp

Filesize
1000KB

Download
memory/2556-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2556-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2556-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3036-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3036-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download