remcos | 10309a1863cc96d5bb112ca98ae7da03734079c1a8cef1f6b900dcd795e69974

Analysis

max time kernel
152s
max time network
161s
platform
windows10_x64
resource
win10v20210408
submitted
18/08/2021, 14:09

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General

Target
7d075ab3544c0d56f3c6ebe1c31ae938.exe
Size 622KB
Sample210818-27t7f9ca9e
SHA256 10309a1863cc96d5bb112ca98ae7da03734079c1a8cef1f6b900dcd795e69974
MD5 7d075ab3544c0d56f3c6ebe1c31ae938
SHA1 413d20403effc747d6a3a0fb253ae0bfd1ec1b1d
SHA512 774696fb6d8870f1431a52a91204602dd9c319f4659e0588c18c192236c9f0f1ac89eca11e41e4793f757687834b1f631d47afe0f2c106f07a5d80c523a8f51e
MD5 SHA1 SHA512

Score

10^/10

remcos **08162021**persistence rat

Malware Config

Extracted

Family

remcos

Botnet

**08162021**

sergio.ac.ug:6969
ramosasdj.ac.ug:6969
parhatcsafxz.ac.ug:6969
heartdoaz.ac.ug:6969
aertdfvaz.ac.ug:6969

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
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
gfhdfthvgcdfsgdfgsds-ZI6Y2P
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-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Egkddja = "C:\\Users\\Public\\Libraries\\ajddkgE.url"	7d075ab3544c0d56f3c6ebe1c31ae938.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
2260	reg.exe
2176	reg.exe
3932	reg.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 2236	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	78
PID 800 wrote to memory of 3568	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	79
PID 800 wrote to memory of 3568	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	79
PID 800 wrote to memory of 3568	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	79
PID 3568 wrote to memory of 1544	3568	cmd.exe	81
PID 3568 wrote to memory of 1544	3568	cmd.exe	81
PID 3568 wrote to memory of 1544	3568	cmd.exe	81
PID 1544 wrote to memory of 2260	1544	cmd.exe	83
PID 1544 wrote to memory of 2260	1544	cmd.exe	83
PID 1544 wrote to memory of 2260	1544	cmd.exe	83
PID 1544 wrote to memory of 2176	1544	cmd.exe	84
PID 1544 wrote to memory of 2176	1544	cmd.exe	84
PID 1544 wrote to memory of 2176	1544	cmd.exe	84
PID 1544 wrote to memory of 2204	1544	cmd.exe	85
PID 1544 wrote to memory of 2204	1544	cmd.exe	85
PID 1544 wrote to memory of 2204	1544	cmd.exe	85
PID 800 wrote to memory of 2288	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	86
PID 800 wrote to memory of 2288	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	86
PID 800 wrote to memory of 2288	800	7d075ab3544c0d56f3c6ebe1c31ae938.exe	86

C:\Users\Admin\AppData\Local\Temp\7d075ab3544c0d56f3c6ebe1c31ae938.exe
"C:\Users\Admin\AppData\Local\Temp\7d075ab3544c0d56f3c6ebe1c31ae938.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:800
- C:\Windows\SysWOW64\dialer.exe
  C:\Windows\System32\dialer.exe
  2⤵
  PID:2236
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3568
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1544
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:2260
  - - 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:2176
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:2204
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  PID:2288
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:3932

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/800-114-0x00000000021E0000-0x00000000021E1000-memory.dmp

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memory/2236-124-0x0000000002360000-0x0000000002361000-memory.dmp

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memory/2236-123-0x0000000002300000-0x0000000002301000-memory.dmp

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memory/2236-126-0x0000000002240000-0x0000000002241000-memory.dmp

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memory/2236-125-0x0000000010580000-0x00000000105F3000-memory.dmp

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memory/2236-127-0x0000000004190000-0x0000000004200000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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