remcos | 06aaccfece6cbee1fe3287ce2d6accd9b60931c585f54a4c400b280ced6567a3

General

Target

e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe
Size

272KB
MD5

e03d79bc3ccdb3ab8eb0ec4d7beb5e54
SHA1

ce6da1698033378c09c962c4596c26799c1a92da
SHA256

06aaccfece6cbee1fe3287ce2d6accd9b60931c585f54a4c400b280ced6567a3
SHA512

add7e1f8ea7afbf0f12571a4001fe9bbb7446c6df7a862bdfe94c99f006e0c5abfdabe5ea9430bad377d5dfb5cdb3a6258fcf771490cf31a10df53141e438396
SSDEEP

3072:MJxZrh6l6K6S5ryGn7lBzb2wyLTULV8DzCmAH0Mb6VajOxej6ZHs5tp6xh:Mlh8XZnPP2wIOa2mU0/VajKyp6

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4524	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wjhjnhtg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microfiles2\\HDPeal.exe\""	HDPeal.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 1164	4524	HDPeal.exe	98

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	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_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
1760	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1760	PING.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
956	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe
4524	HDPeal.exe
4524	HDPeal.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 956 wrote to memory of 1312	956	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe	92
PID 956 wrote to memory of 1312	956	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe	92
PID 956 wrote to memory of 1312	956	e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe	92
PID 1312 wrote to memory of 1760	1312	cmd.exe	94
PID 1312 wrote to memory of 1760	1312	cmd.exe	94
PID 1312 wrote to memory of 1760	1312	cmd.exe	94
PID 1312 wrote to memory of 4524	1312	cmd.exe	97
PID 1312 wrote to memory of 4524	1312	cmd.exe	97
PID 1312 wrote to memory of 4524	1312	cmd.exe	97
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98
PID 4524 wrote to memory of 1164	4524	HDPeal.exe	98

C:\Users\Admin\AppData\Local\Temp\e03d79bc3ccdb3ab8eb0ec4d7beb5e54_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e03d79bc3ccdb3ab8eb0ec4d7beb5e54_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:956
- 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:1312
- - 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:1760
- - 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 SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4524
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe
      4⤵
      PID:1164

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
272KB

MD5
e03d79bc3ccdb3ab8eb0ec4d7beb5e54

SHA1
ce6da1698033378c09c962c4596c26799c1a92da

SHA256
06aaccfece6cbee1fe3287ce2d6accd9b60931c585f54a4c400b280ced6567a3

SHA512
add7e1f8ea7afbf0f12571a4001fe9bbb7446c6df7a862bdfe94c99f006e0c5abfdabe5ea9430bad377d5dfb5cdb3a6258fcf771490cf31a10df53141e438396

Download Submit
memory/956-3-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/956-7-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/956-12-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1164-29-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/1164-26-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/4524-20-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/4524-25-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4524-24-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/4524-21-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4524-31-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/4524-32-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads