remcos | 01d75f2dd7d3a8df8ec45ace0c433de4e9042c84773cb94952dcdaa91de53d4c

General

Target

c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
Size

216KB
MD5

c1c791572f2440f415e9757916fa150d
SHA1

6e387c7a76fabf10a92b6071168c7d468187aa86
SHA256

01d75f2dd7d3a8df8ec45ace0c433de4e9042c84773cb94952dcdaa91de53d4c
SHA512

8474b11632ea519884fcb2b4443de49bacf69ce518873446a24b9004a5491cfdc9ee0e17ee1b3302982638e2c24bfa15d7a750668188883883414c0256c52f39
SSDEEP

3072:QV9eu1yGj0XflzGHvvc8rPft2OalIrzR0lXV80/wDbR7csTEfiL:yefGmfdGHz4Oo4GXV804D9csw

Score

10^/10

remcos discovery persistence rat

Malware Config

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	HDPeal.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KLGmkG = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	HDPeal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5084 set thread context of 3152	5084	HDPeal.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HDPeal.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2640	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2640	PING.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
5084	HDPeal.exe
5084	HDPeal.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
5084	HDPeal.exe
5084	HDPeal.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
5084	HDPeal.exe
5084	HDPeal.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 1268	4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe	87
PID 4720 wrote to memory of 1268	4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe	87
PID 4720 wrote to memory of 1268	4720	c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe	87
PID 1268 wrote to memory of 2640	1268	cmd.exe	89
PID 1268 wrote to memory of 2640	1268	cmd.exe	89
PID 1268 wrote to memory of 2640	1268	cmd.exe	89
PID 1268 wrote to memory of 5084	1268	cmd.exe	90
PID 1268 wrote to memory of 5084	1268	cmd.exe	90
PID 1268 wrote to memory of 5084	1268	cmd.exe	90
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91
PID 5084 wrote to memory of 3152	5084	HDPeal.exe	91

C:\Users\Admin\AppData\Local\Temp\c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1c791572f2440f415e9757916fa150d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1268
- - C:\Windows\SysWOW64\PING.EXE
    PING 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2640
- - C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe
    "C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:5084
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe
      4⤵
      PID:3152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat

Filesize
104B

MD5
9e63d0d86376e45cfd856537efb86171

SHA1
566c68ff9c1f2fa5a75207258b1092447e81fcce

SHA256
6f6f2f859525c5c8668364d9feb6da278eee5ed59580a5184e8dda65832cce7d

SHA512
d5359f1a3701a010c3fb90faac3da226881c6777dd7e1bfaf475cef0f18f6dfab9f317ac3431daa77869b2872f5a5c9a16cad10bc51a5d127219a095df7ccb98

Download Submit
C:\Users\Admin\AppData\Roaming\Microfiles2\HDPeal.exe

Filesize
216KB

MD5
c1c791572f2440f415e9757916fa150d

SHA1
6e387c7a76fabf10a92b6071168c7d468187aa86

SHA256
01d75f2dd7d3a8df8ec45ace0c433de4e9042c84773cb94952dcdaa91de53d4c

SHA512
8474b11632ea519884fcb2b4443de49bacf69ce518873446a24b9004a5491cfdc9ee0e17ee1b3302982638e2c24bfa15d7a750668188883883414c0256c52f39

Download Submit
memory/3152-26-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/3152-29-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4720-10-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/4720-7-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4720-3-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/5084-19-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/5084-20-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/5084-25-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/5084-23-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/5084-31-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/5084-32-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads