remcos | 047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7

General

Target
047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Size 370KB
Sample200706-p2txwdbye2
SHA256 047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7
MD5 885f52f5067da43ef4ea4c80082056ec
SHA1 3a3227f23886b93dd82a871346763ec35eb29880
SHA512 95312e81e09aef217ba4b3916ab355cdbbdf25e7f212e9737f6192bbc32b614274a26e28552ba7279e18b9a1add6bee816099af48005e5630e985414cc351c2b
MD5 SHA1 SHA512

Score

10^/10

persistence rat remcos

Malware Config

Extracted

Family

remcos

C2

185.140.53.37:1900

Signatures

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
1568	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 1404	1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	24
PID 1568 set thread context of 1048	1568	remcos.exe	29

Executes dropped EXE 2 IoCs

pid	Process
1568	remcos.exe
1048	remcos.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\remcos\remcos.exe	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
File created	C:\Windows\remcos\remcos.exe	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe

Adds Run entry to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Windows\\remcos\\remcos.exe\""	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\remcos = "\"C:\\Windows\\remcos\\remcos.exe\""	remcos.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
360	PING.EXE

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1404	1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	24
PID 1304 wrote to memory of 1404	1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	24
PID 1304 wrote to memory of 1404	1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	24
PID 1304 wrote to memory of 1404	1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	24
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 1404 wrote to memory of 684	1404	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe	25
PID 684 wrote to memory of 360	684	cmd.exe	27
PID 684 wrote to memory of 360	684	cmd.exe	27
PID 684 wrote to memory of 360	684	cmd.exe	27
PID 684 wrote to memory of 360	684	cmd.exe	27
PID 684 wrote to memory of 1568	684	cmd.exe	28
PID 684 wrote to memory of 1568	684	cmd.exe	28
PID 684 wrote to memory of 1568	684	cmd.exe	28
PID 684 wrote to memory of 1568	684	cmd.exe	28
PID 1568 wrote to memory of 1048	1568	remcos.exe	29
PID 1568 wrote to memory of 1048	1568	remcos.exe	29
PID 1568 wrote to memory of 1048	1568	remcos.exe	29
PID 1568 wrote to memory of 1048	1568	remcos.exe	29

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1304	047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
1568	remcos.exe

Loads dropped DLL 2 IoCs

pid	Process
684	cmd.exe
684	cmd.exe

C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
"C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
PID:1304
- C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe
  "C:\Users\Admin\AppData\Local\Temp\047ab465004dfd698d0ef47967162e77e6c46b575832d60fab82b440ce8e44e7.exe"
  2⤵
  - Drops file in Windows directory
  - Adds Run entry to start application
  - Suspicious use of WriteProcessMemory
  PID:1404
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    - Loads dropped DLL
    PID:684
  - - C:\Windows\SysWOW64\PING.EXE
      PING 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:360
  - - C:\Windows\remcos\remcos.exe
      "C:\Windows\remcos\remcos.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of SetThreadContext
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      Suspicious behavior: MapViewOfSection
      PID:1568
    - - C:\Windows\remcos\remcos.exe
        
        "C:\Windows\remcos\remcos.exe"
        5⤵
        Executes dropped EXE
        Adds Run entry to start application
        
        PID:1048

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1048-15-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1404-0-0x0000000000400000-0x0000000000417000-memory.dmp

Download

memory/1404-2-0x0000000000400000-0x0000000000417000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads