remcos | 92f5bb456f3c0c9e3bdd9a5f429c73d874da1925d66bc853d5720d1cb6547257

General

Target

e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe
Size

276KB
MD5

e20c5d6e5c17f9da87bf14e31a87c163
SHA1

8437ab7ed62ac4e6b03475a7a896dc61a55519ec
SHA256

92f5bb456f3c0c9e3bdd9a5f429c73d874da1925d66bc853d5720d1cb6547257
SHA512

3863eaec6a6f4bd0ca3283937c312012f1491783e2cfd9dbcb079958ba38a76972c5e6262b049471ddbce84a6aaec12682e3672de1bcb04994081437b914d15b
SSDEEP

3072:TpqGUDkNPtLU2gi84WsUhdqVgGzy8AYhN4VLe:VqaFos84oyNmk4F

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	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1192	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\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	HDPeal.exe

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	e20c5d6e5c17f9da87bf14e31a87c163_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
3096	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3096	PING.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
396	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe
1192	HDPeal.exe
1192	HDPeal.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 4148	396	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe	93
PID 396 wrote to memory of 4148	396	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe	93
PID 396 wrote to memory of 4148	396	e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe	93
PID 4148 wrote to memory of 3096	4148	cmd.exe	95
PID 4148 wrote to memory of 3096	4148	cmd.exe	95
PID 4148 wrote to memory of 3096	4148	cmd.exe	95
PID 4148 wrote to memory of 1192	4148	cmd.exe	96
PID 4148 wrote to memory of 1192	4148	cmd.exe	96
PID 4148 wrote to memory of 1192	4148	cmd.exe	96
PID 1192 wrote to memory of 3228	1192	HDPeal.exe	97
PID 1192 wrote to memory of 3228	1192	HDPeal.exe	97
PID 1192 wrote to memory of 3228	1192	HDPeal.exe	97

C:\Users\Admin\AppData\Local\Temp\e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e20c5d6e5c17f9da87bf14e31a87c163_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:396
- 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:4148
- - 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:3096
- - 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
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1192
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe
      4⤵
      PID:3228

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
276KB

MD5
e20c5d6e5c17f9da87bf14e31a87c163

SHA1
8437ab7ed62ac4e6b03475a7a896dc61a55519ec

SHA256
92f5bb456f3c0c9e3bdd9a5f429c73d874da1925d66bc853d5720d1cb6547257

SHA512
3863eaec6a6f4bd0ca3283937c312012f1491783e2cfd9dbcb079958ba38a76972c5e6262b049471ddbce84a6aaec12682e3672de1bcb04994081437b914d15b

Download Submit
memory/396-3-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/396-7-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/396-10-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1192-22-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1192-19-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1192-24-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1192-25-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1192-23-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1192-27-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1192-29-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads