remcos | 1a68aca62e00ff2d44bf9b5bab0840043dee5342ded8bdbbcae372d4c9f2db8b

Analysis

max time kernel
147s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
03/05/2024, 04:23

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
g2m.dll
Size 27.9MB
Sample240503-ezyfmaeh9t
SHA256 3f8ceeb3547fb075ec11efbb848a21c63374f42d6955834077e5cba1667e4620
MD5 df700e4ebb6bddeb3abb281657044133
SHA1 419c1232247c3aaabf22a8a31e0b0a48bef1d369
SHA512 09209d42b5df350465959c51ec7319d2d227cf0c910a273d9545e5bbed3a1e50b86d1a2622d4ef2a26ca1ef23c5520d89a8d48ec70fcd6908d207d6ca7953135
SSDEEP 393216:pezzU7EDJ63vIMxrsjnh7CHfqkALvIzhJRYiE/XWKNnBcRpO:YznCvRGwCXUhJRYiE+0nBcRI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

quickdatenight.duckdns.org:4047

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-JCJG7N
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\*Mouhn = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Lopeunt.dll,EntryPoint"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
4408	regsvr32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 4408	3172	regsvr32.exe	86
PID 3172 wrote to memory of 4408	3172	regsvr32.exe	86
PID 3172 wrote to memory of 4408	3172	regsvr32.exe	86
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2452	4408	regsvr32.exe	97
PID 4408 wrote to memory of 2076	4408	regsvr32.exe	99
PID 4408 wrote to memory of 2076	4408	regsvr32.exe	99
PID 4408 wrote to memory of 2076	4408	regsvr32.exe	99
PID 2076 wrote to memory of 636	2076	cmd.exe	101
PID 2076 wrote to memory of 636	2076	cmd.exe	101
PID 2076 wrote to memory of 636	2076	cmd.exe	101

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of WriteProcessMemory
  PID:4408
- - C:\Windows\SysWOW64\regsvr32.exe
    "C:\Windows\SysWOW64\regsvr32.exe"
    3⤵
    PID:2452
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Mouhn" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\Lopeunt.dll",EntryPoint /f & exit
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2076
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Mouhn" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\Lopeunt.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      PID:636

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

Loading Replay Monitor...

Downloads

memory/2452-11-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-13-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-8-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-12-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-6-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-2-0x0000000000180000-0x0000000000181000-memory.dmp

Download

memory/2452-9-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-27-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-26-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-21-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-5-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-14-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-16-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-18-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-19-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/2452-20-0x0000000000400000-0x0000000000482000-memory.dmp

Download

memory/4408-1-0x0000000010869000-0x0000000010882000-memory.dmp

Download

memory/4408-0-0x0000000010000000-0x0000000011D0B000-memory.dmp

Download

memory/4408-10-0x0000000010000000-0x0000000011D0B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads