remcos | b1685b4946df16daf7ee4ecda64cc48bb48e5d0259eb0bddaca95df314de857d

Analysis

max time kernel
151s
max time network
151s
platform
windows10_x64
resource
win10-en-20211014
submitted
27/10/2021, 10:17

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General

Target
DHL_119040 reçu,pdf (2).exe
Size 1.0MB
Sample211027-mbebvabff2
SHA256 b1685b4946df16daf7ee4ecda64cc48bb48e5d0259eb0bddaca95df314de857d
MD5 f1464e15657fd744ba707fe85eabc395
SHA1 fad1f241b8b26c8baab64bd5a2b0b2f763c46ae2
SHA512 9f2e13b32c48ed3148da0a7eaeb3a4f01847f5819a3a2327e4be3e937cc06c20bbe832f86dc7d340efdb0d526201c19ae42c652630d804d01e8f6ab869f4fce5
MD5 SHA1 SHA512

Score

10^/10

remcos zion persistence rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

ZION

tattonmurpy6.ddns.net:1720

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
Remcos-EREPJP
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
notepad;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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Szsyqm = "C:\\Users\\Public\\Libraries\\\\mqyszS.url"	DHL_119040 reçu,pdf (2).exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
1984	reg.exe
1212	reg.exe
408	reg.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 2852	2816	DHL_119040 reçu,pdf (2).exe	69
PID 2816 wrote to memory of 3136	2816	DHL_119040 reçu,pdf (2).exe	70
PID 2816 wrote to memory of 3136	2816	DHL_119040 reçu,pdf (2).exe	70
PID 2816 wrote to memory of 3136	2816	DHL_119040 reçu,pdf (2).exe	70
PID 3136 wrote to memory of 1492	3136	cmd.exe	72
PID 3136 wrote to memory of 1492	3136	cmd.exe	72
PID 3136 wrote to memory of 1492	3136	cmd.exe	72
PID 1492 wrote to memory of 1212	1492	cmd.exe	74
PID 1492 wrote to memory of 1212	1492	cmd.exe	74
PID 1492 wrote to memory of 1212	1492	cmd.exe	74
PID 1492 wrote to memory of 408	1492	cmd.exe	75
PID 1492 wrote to memory of 408	1492	cmd.exe	75
PID 1492 wrote to memory of 408	1492	cmd.exe	75
PID 1492 wrote to memory of 724	1492	cmd.exe	76
PID 1492 wrote to memory of 724	1492	cmd.exe	76
PID 1492 wrote to memory of 724	1492	cmd.exe	76
PID 2816 wrote to memory of 1908	2816	DHL_119040 reçu,pdf (2).exe	77
PID 2816 wrote to memory of 1908	2816	DHL_119040 reçu,pdf (2).exe	77
PID 2816 wrote to memory of 1908	2816	DHL_119040 reçu,pdf (2).exe	77
PID 1908 wrote to memory of 1984	1908	cmd.exe	79
PID 1908 wrote to memory of 1984	1908	cmd.exe	79
PID 1908 wrote to memory of 1984	1908	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\DHL_119040 reçu,pdf (2).exe
"C:\Users\Admin\AppData\Local\Temp\DHL_119040 reçu,pdf (2).exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:2852
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1492
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:1212
  - - 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:408
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:724
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1984

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/2816-115-0x0000000002330000-0x0000000002331000-memory.dmp

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memory/2816-116-0x0000000002381000-0x0000000002395000-memory.dmp

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memory/2852-126-0x0000000002E50000-0x0000000002E51000-memory.dmp

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memory/2852-128-0x0000000073D80000-0x0000000073DFC000-memory.dmp

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memory/2852-127-0x0000000002E10000-0x0000000002E11000-memory.dmp

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memory/2852-129-0x0000000000400000-0x0000000000479000-memory.dmp

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memory/2852-125-0x0000000002B90000-0x0000000002B91000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads