remcos | 40b978c05c1b2f3124ab78fe7c8cb9b65598c87386be396ba7b6407a81599ebc

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 06:51

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General

Target
g2m.dll
Size 27.9MB
Sample240504-hmjcqaef31
SHA256 35e91c43de8764b859632cf96174e66fb48f9732fa39ac9a55df10f3736b5d3f
MD5 edc4d14ab880f66a3d51c30f3d24c73f
SHA1 26c6c8483b443c3e617e464f8b0d5762b02c286b
SHA512 0de54f1e773b7814ec5b93c96e759a2e4a036541b7855413b550d1e93aeca367ad8935d1cb36807e9bc9a953792b035a51034d8528cdb509218986d5b9fb8b72
SSDEEP 393216:sezzmdEDJ63vIMxrsjnh7CHfqkALvIzhJRYiE/XWKNnBcRec:tzC4CvRGwCXUhJRYiE+0nBcRL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

peleinufele.kozow.com:32024

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-S0WVWO
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-1-5-21-2860750803-256193626-1801997576-1000\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
3764	regsvr32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 3764	5092	regsvr32.exe	85
PID 5092 wrote to memory of 3764	5092	regsvr32.exe	85
PID 5092 wrote to memory of 3764	5092	regsvr32.exe	85
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 2832	3764	regsvr32.exe	97
PID 3764 wrote to memory of 3304	3764	regsvr32.exe	98
PID 3764 wrote to memory of 3304	3764	regsvr32.exe	98
PID 3764 wrote to memory of 3304	3764	regsvr32.exe	98
PID 3304 wrote to memory of 4400	3304	cmd.exe	100
PID 3304 wrote to memory of 4400	3304	cmd.exe	100
PID 3304 wrote to memory of 4400	3304	cmd.exe	100

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\g2m.dll
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of WriteProcessMemory
  PID:3764
- - C:\Windows\SysWOW64\regsvr32.exe
    "C:\Windows\SysWOW64\regsvr32.exe"
    3⤵
    PID:2832
- - 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:3304
  - - 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:4400

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

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Downloads

memory/2832-16-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-7-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-3-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

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memory/2832-27-0x0000000000C50000-0x0000000000CD2000-memory.dmp

Download

memory/2832-8-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-11-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-13-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-26-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-25-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-22-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-24-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-10-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-20-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-17-0x0000000000C50000-0x0000000000CD2000-memory.dmp

Download

memory/2832-18-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-19-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/2832-23-0x0000000000C50000-0x0000000000CD2000-memory.dmp

Download

memory/2832-21-0x0000000000C50000-0x0000000000CD2000-memory.dmp

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memory/3764-15-0x0000000011CAA000-0x0000000011CD7000-memory.dmp

Download

memory/3764-1-0x0000000010869000-0x0000000010882000-memory.dmp

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memory/3764-0-0x0000000010000000-0x0000000011D0A000-memory.dmp

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memory/3764-6-0x0000000010000000-0x0000000011D0A000-memory.dmp

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memory/3764-12-0x0000000010000000-0x0000000011D0A000-memory.dmp

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memory/3764-2-0x0000000010000000-0x0000000011D0A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads