remcos | 088694f1604e05863dc1fa86b149e97b51485edb9fef622141a9617821330ac6

General

Target

SPT DRINGENDE BESTELLUNG _876453,pdf.exe
Size

713KB
MD5

53b190ab0fcd0d35cca9342610770917
SHA1

8e5f32a31ee5c75dca90fcefa2ea628455fe7c21
SHA256

088694f1604e05863dc1fa86b149e97b51485edb9fef622141a9617821330ac6
SHA512

ab664e49e02545c942dde925c4085cfb041562332da7955b687343ad3e67949b66e6ea4314db7ee245b9d68b2108895819728fa6ad05e6ccfd52455bda0989e3

Score

10^/10

remcos ok man persistence rat

Malware Config

Extracted

Family

remcos

Version

3.1.5 Pro

Botnet

OK MAN

C2

zion6.ddns.net:2815

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-MPN2RF
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

Processes:

SPT DRINGENDE BESTELLUNG _876453,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\Aixhhiek = "C:\\Users\\Public\\Libraries\\keihhxiA.url"	SPT DRINGENDE BESTELLUNG _876453,pdf.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exereg.exe

pid process

688 reg.exe
596 reg.exe
1628 reg.exe

pid	process
688	reg.exe
596	reg.exe
1628	reg.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

SPT DRINGENDE BESTELLUNG _876453,pdf.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 708	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	logagent.exe
PID 1868 wrote to memory of 1196	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1196	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1196	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1196	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1196 wrote to memory of 848	1196	cmd.exe	cmd.exe
PID 1196 wrote to memory of 848	1196	cmd.exe	cmd.exe
PID 1196 wrote to memory of 848	1196	cmd.exe	cmd.exe
PID 1196 wrote to memory of 848	1196	cmd.exe	cmd.exe
PID 848 wrote to memory of 688	848	cmd.exe	reg.exe
PID 848 wrote to memory of 688	848	cmd.exe	reg.exe
PID 848 wrote to memory of 688	848	cmd.exe	reg.exe
PID 848 wrote to memory of 688	848	cmd.exe	reg.exe
PID 848 wrote to memory of 596	848	cmd.exe	reg.exe
PID 848 wrote to memory of 596	848	cmd.exe	reg.exe
PID 848 wrote to memory of 596	848	cmd.exe	reg.exe
PID 848 wrote to memory of 596	848	cmd.exe	reg.exe
PID 848 wrote to memory of 1188	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 1188	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 1188	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 1188	848	cmd.exe	schtasks.exe
PID 1868 wrote to memory of 1544	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1544	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1544	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1868 wrote to memory of 1544	1868	SPT DRINGENDE BESTELLUNG _876453,pdf.exe	cmd.exe
PID 1544 wrote to memory of 1628	1544	cmd.exe	reg.exe
PID 1544 wrote to memory of 1628	1544	cmd.exe	reg.exe
PID 1544 wrote to memory of 1628	1544	cmd.exe	reg.exe
PID 1544 wrote to memory of 1628	1544	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\SPT DRINGENDE BESTELLUNG _876453,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SPT DRINGENDE BESTELLUNG _876453,pdf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Windows\SysWOW64\logagent.exe
  C:\Windows\System32\logagent.exe
  2⤵
  PID:708
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\Trast.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1196
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /K C:\Users\Public\UKO.bat
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:848
  - - C:\Windows\SysWOW64\reg.exe
      reg delete hkcu\Environment /v windir /f
      4⤵
      Modifies registry key
      PID:688
  - - 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:596
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /Run /TN \Microsoft\Windows\DiskCleanup\SilentCleanup /I
      4⤵
      PID:1188
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Public\nest.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1544
- - C:\Windows\SysWOW64\reg.exe
    reg delete hkcu\Environment /v windir /f
    3⤵
    - Modifies registry key
    PID:1628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Trast.bat

MD5
4068c9f69fcd8a171c67f81d4a952a54

SHA1
4d2536a8c28cdcc17465e20d6693fb9e8e713b36

SHA256
24222300c78180b50ed1f8361ba63cb27316ec994c1c9079708a51b4a1a9d810

SHA512
a64f9319acc51fffd0491c74dcd9c9084c2783b82f95727e4bfe387a8528c6dcf68f11418e88f1e133d115daf907549c86dd7ad866b2a7938add5225fbb2811d

Download Submit
C:\Users\Public\UKO.bat

MD5
eaf8d967454c3bbddbf2e05a421411f8

SHA1
6170880409b24de75c2dc3d56a506fbff7f6622c

SHA256
f35f2658455a2e40f151549a7d6465a836c33fa9109e67623916f889849eac56

SHA512
fe5be5c673e99f70c93019d01abb0a29dd2ecf25b2d895190ff551f020c28e7d8f99f65007f440f0f76c5bcac343b2a179a94d190c938ea3b9e1197890a412e9

Download Submit
C:\Users\Public\nest.bat

MD5
8ada51400b7915de2124baaf75e3414c

SHA1
1a7b9db12184ab7fd7fce1c383f9670a00adb081

SHA256
45aa3957c29865260a78f03eef18ae9aebdbf7bea751ecc88be4a799f2bb46c7

SHA512
9afc138157a4565294ca49942579cdb6f5d8084e56f9354738de62b585f4c0fa3e7f2cbc9541827f2084e3ff36c46eed29b46f5dd2444062ffcd05c599992e68

Download Submit
memory/596-62-0x0000000000000000-mapping.dmp

Download
memory/688-61-0x0000000000000000-mapping.dmp

Download
memory/708-67-0x0000000000300000-0x0000000000379000-memory.dmp

Filesize
484KB

Download
memory/708-55-0x0000000000000000-mapping.dmp

Download
memory/708-66-0x0000000010590000-0x000000001060C000-memory.dmp

Filesize
496KB

Download
memory/708-65-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/708-64-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/708-68-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/848-59-0x0000000000000000-mapping.dmp

Download
memory/1188-63-0x0000000000000000-mapping.dmp

Download
memory/1196-57-0x0000000000000000-mapping.dmp

Download
memory/1544-69-0x0000000000000000-mapping.dmp

Download
memory/1628-71-0x0000000000000000-mapping.dmp

Download
memory/1868-53-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1868-54-0x00000000766B1000-0x00000000766B3000-memory.dmp

Filesize
8KB

Download

Analysis

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