remcos | 712c752641d2f7b504efd7631bb3b36dbdbafcc3fd4a371dbe03b5499ac67053

Analysis

max time kernel
148s
max time network
179s
platform
windows7_x64
resource
win7v20210408
submitted
07/10/2021, 07:52

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General

Target
DHL_1012617429350,pdf.exe
Size 774KB
Sample211007-jqfxfacac8
SHA256 712c752641d2f7b504efd7631bb3b36dbdbafcc3fd4a371dbe03b5499ac67053
MD5 7cdc19a52a1d3ecc98520d2f3393a586
SHA1 955817835e85d8531f4cfa4bb04b24dae3c1bfc0
SHA512 4e6cfb6fc5def458cf372cf693dffaa9e724998619ef061c62db86dadf178c974cb723f55e96abfe6d1458f2ad4f7e365e86f95b9e8b00e0b2e516af37d281e4
MD5 SHA1 SHA512

Score

10^/10

remcos jimbo persistence rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Jimbo

nnnnoy.ddns.net:5367

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-3Z7H52
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\Ltqvsci = "C:\\Users\\Public\\Libraries\\icsvqtL.url"	DHL_1012617429350,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
988	reg.exe
1676	reg.exe
516	reg.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1888	1120	DHL_1012617429350,pdf.exe	29
PID 1120 wrote to memory of 1660	1120	DHL_1012617429350,pdf.exe	30
PID 1120 wrote to memory of 1660	1120	DHL_1012617429350,pdf.exe	30
PID 1120 wrote to memory of 1660	1120	DHL_1012617429350,pdf.exe	30
PID 1120 wrote to memory of 1660	1120	DHL_1012617429350,pdf.exe	30
PID 1660 wrote to memory of 1644	1660	cmd.exe	32
PID 1660 wrote to memory of 1644	1660	cmd.exe	32
PID 1660 wrote to memory of 1644	1660	cmd.exe	32
PID 1660 wrote to memory of 1644	1660	cmd.exe	32
PID 1644 wrote to memory of 988	1644	cmd.exe	34
PID 1644 wrote to memory of 988	1644	cmd.exe	34
PID 1644 wrote to memory of 988	1644	cmd.exe	34
PID 1644 wrote to memory of 988	1644	cmd.exe	34
PID 1644 wrote to memory of 1676	1644	cmd.exe	35
PID 1644 wrote to memory of 1676	1644	cmd.exe	35
PID 1644 wrote to memory of 1676	1644	cmd.exe	35
PID 1644 wrote to memory of 1676	1644	cmd.exe	35
PID 1644 wrote to memory of 796	1644	cmd.exe	36
PID 1644 wrote to memory of 796	1644	cmd.exe	36
PID 1644 wrote to memory of 796	1644	cmd.exe	36
PID 1644 wrote to memory of 796	1644	cmd.exe	36
PID 1120 wrote to memory of 624	1120	DHL_1012617429350,pdf.exe	37
PID 1120 wrote to memory of 624	1120	DHL_1012617429350,pdf.exe	37
PID 1120 wrote to memory of 624	1120	DHL_1012617429350,pdf.exe	37
PID 1120 wrote to memory of 624	1120	DHL_1012617429350,pdf.exe	37
PID 624 wrote to memory of 516	624	cmd.exe	39
PID 624 wrote to memory of 516	624	cmd.exe	39
PID 624 wrote to memory of 516	624	cmd.exe	39
PID 624 wrote to memory of 516	624	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\DHL_1012617429350,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_1012617429350,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:1888
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1644
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:988
  - - 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:1676
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:796
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:516

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/1120-62-0x0000000000230000-0x0000000000231000-memory.dmp

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memory/1120-60-0x0000000074D91000-0x0000000074D93000-memory.dmp

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memory/1888-75-0x00000000000C0000-0x00000000000C1000-memory.dmp

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memory/1888-73-0x0000000000170000-0x0000000000171000-memory.dmp

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memory/1888-72-0x0000000000100000-0x0000000000101000-memory.dmp

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memory/1888-76-0x0000000000400000-0x0000000000421000-memory.dmp

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memory/1888-74-0x00000000725B0000-0x00000000725D3000-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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