remcos | 8f1eefd14608fae865576d9f7a24be116eb9d8dcebf89c954e2e645b06174c4e

Analysis

max time kernel
151s
max time network
154s
platform
windows7_x64
resource
win7v20210408
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-1-5-21-2455352368-1077083310-2879168483-1000\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
1456	reg.exe
984	reg.exe
1516	reg.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1644	1996	7d1f0df962998e556e991aa65be30583.exe	27
PID 1996 wrote to memory of 1648	1996	7d1f0df962998e556e991aa65be30583.exe	28
PID 1996 wrote to memory of 1648	1996	7d1f0df962998e556e991aa65be30583.exe	28
PID 1996 wrote to memory of 1648	1996	7d1f0df962998e556e991aa65be30583.exe	28
PID 1996 wrote to memory of 1648	1996	7d1f0df962998e556e991aa65be30583.exe	28
PID 1648 wrote to memory of 580	1648	cmd.exe	30
PID 1648 wrote to memory of 580	1648	cmd.exe	30
PID 1648 wrote to memory of 580	1648	cmd.exe	30
PID 1648 wrote to memory of 580	1648	cmd.exe	30
PID 580 wrote to memory of 1456	580	cmd.exe	32
PID 580 wrote to memory of 1456	580	cmd.exe	32
PID 580 wrote to memory of 1456	580	cmd.exe	32
PID 580 wrote to memory of 1456	580	cmd.exe	32
PID 580 wrote to memory of 984	580	cmd.exe	33
PID 580 wrote to memory of 984	580	cmd.exe	33
PID 580 wrote to memory of 984	580	cmd.exe	33
PID 580 wrote to memory of 984	580	cmd.exe	33
PID 580 wrote to memory of 1464	580	cmd.exe	34
PID 580 wrote to memory of 1464	580	cmd.exe	34
PID 580 wrote to memory of 1464	580	cmd.exe	34
PID 580 wrote to memory of 1464	580	cmd.exe	34
PID 1996 wrote to memory of 1900	1996	7d1f0df962998e556e991aa65be30583.exe	35
PID 1996 wrote to memory of 1900	1996	7d1f0df962998e556e991aa65be30583.exe	35
PID 1996 wrote to memory of 1900	1996	7d1f0df962998e556e991aa65be30583.exe	35
PID 1996 wrote to memory of 1900	1996	7d1f0df962998e556e991aa65be30583.exe	35
PID 1900 wrote to memory of 1516	1900	cmd.exe	37
PID 1900 wrote to memory of 1516	1900	cmd.exe	37
PID 1900 wrote to memory of 1516	1900	cmd.exe	37
PID 1900 wrote to memory of 1516	1900	cmd.exe	37

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:1996
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:1644
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1648
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:580
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1456
  - - 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:984
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1464
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1900
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1516

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/1644-73-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/1644-63-0x0000000000080000-0x0000000000081000-memory.dmp

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memory/1644-87-0x0000000072600000-0x000000007267C000-memory.dmp

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memory/1644-86-0x0000000000270000-0x0000000000271000-memory.dmp

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memory/1644-88-0x0000000000330000-0x00000000003A9000-memory.dmp

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memory/1644-85-0x00000000000E0000-0x00000000000E1000-memory.dmp

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memory/1644-84-0x0000000000080000-0x0000000000081000-memory.dmp

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memory/1996-60-0x00000000767B1000-0x00000000767B3000-memory.dmp

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memory/1996-62-0x0000000000241000-0x0000000000255000-memory.dmp

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memory/1996-61-0x0000000000220000-0x0000000000221000-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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