remcos | 8f1eefd14608fae865576d9f7a24be116eb9d8dcebf89c954e2e645b06174c4e

Analysis

max time kernel
152s
max time network
150s
platform
windows10_x64
resource
win10-en-20210920
submitted
14/10/2021, 08:42

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General

Target
7d1f0df962998e556e991aa65be30583.exe
Size 794KB
Sample211014-kl2tsaggd9
SHA256 8f1eefd14608fae865576d9f7a24be116eb9d8dcebf89c954e2e645b06174c4e
MD5 7d1f0df962998e556e991aa65be30583
SHA1 5cdbc6d60e5087638710db71ac1a0ee6e4e06b85
SHA512 72b2890de68cde0ccb37a0d0482e2ecc95e72616e1e6f83bad80b99d3977a618738b67bfead38ef9f88653818468d49b90789904c18d64bb583ac325474da9a7
MD5 SHA1 SHA512

Score

10^/10

remcos 10.14 persistence rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

10.14

nikahuve.ac.ug:6968
kalskala.ac.ug:6968
tuekisaa.ac.ug:6968
parthaha.ac.ug:6968

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
sgs.dat
keylog_flag
false
keylog_folder
excom
keylog_path
%AppData%
mouse_option
false
mutex
gfhdfthvgcdfsgdfgsds-IPFRXS
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
take_screenshot_title
wikipedia;solitaire;

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

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Uvcgqrm = "C:\\Users\\Public\\Libraries\\mrqgcvU.url"	7d1f0df962998e556e991aa65be30583.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
1684	reg.exe
1272	reg.exe
2900	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 2976	1776	7d1f0df962998e556e991aa65be30583.exe	71
PID 1776 wrote to memory of 812	1776	7d1f0df962998e556e991aa65be30583.exe	72
PID 1776 wrote to memory of 812	1776	7d1f0df962998e556e991aa65be30583.exe	72
PID 1776 wrote to memory of 812	1776	7d1f0df962998e556e991aa65be30583.exe	72
PID 812 wrote to memory of 3676	812	cmd.exe	74
PID 812 wrote to memory of 3676	812	cmd.exe	74
PID 812 wrote to memory of 3676	812	cmd.exe	74
PID 3676 wrote to memory of 1272	3676	cmd.exe	76
PID 3676 wrote to memory of 1272	3676	cmd.exe	76
PID 3676 wrote to memory of 1272	3676	cmd.exe	76
PID 3676 wrote to memory of 2900	3676	cmd.exe	77
PID 3676 wrote to memory of 2900	3676	cmd.exe	77
PID 3676 wrote to memory of 2900	3676	cmd.exe	77
PID 3676 wrote to memory of 1728	3676	cmd.exe	78
PID 3676 wrote to memory of 1728	3676	cmd.exe	78
PID 3676 wrote to memory of 1728	3676	cmd.exe	78
PID 1776 wrote to memory of 3244	1776	7d1f0df962998e556e991aa65be30583.exe	79
PID 1776 wrote to memory of 3244	1776	7d1f0df962998e556e991aa65be30583.exe	79
PID 1776 wrote to memory of 3244	1776	7d1f0df962998e556e991aa65be30583.exe	79
PID 3244 wrote to memory of 1684	3244	cmd.exe	81
PID 3244 wrote to memory of 1684	3244	cmd.exe	81
PID 3244 wrote to memory of 1684	3244	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\7d1f0df962998e556e991aa65be30583.exe
"C:\Users\Admin\AppData\Local\Temp\7d1f0df962998e556e991aa65be30583.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Windows\SysWOW64\secinit.exe
  C:\Windows\System32\secinit.exe
  2⤵
  PID:2976
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3676
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1272
  - - C:\Windows\SysWOW64\reg.exe
      reg add hkcu\Environment /v windir /d "cmd /c start /min C:\Users\Public\KDECO.bat reg delete hkcu\Environment /v windir /f && REM "
      4⤵
      Modifies registry key
      PID:2900
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1728
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3244
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1684

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1776-116-0x0000000002341000-0x0000000002355000-memory.dmp

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memory/1776-115-0x0000000002320000-0x0000000002321000-memory.dmp

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memory/2976-125-0x0000000003210000-0x0000000003211000-memory.dmp

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memory/2976-127-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

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memory/2976-128-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/2976-126-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/2976-124-0x0000000002F90000-0x0000000002F91000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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