remcos | d951a04002bfca7275d860f6f4ea6572939488c8791a9d6564137304bc534fcf

General

Target

JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
Size

716KB
MD5

3b1732d4f0220b0dc1b6afa25f30f0c5
SHA1

0c582543ee36931d59ecfbc4d266751f79dfac62
SHA256

d951a04002bfca7275d860f6f4ea6572939488c8791a9d6564137304bc534fcf
SHA512

72787d8f0e8d9572af879a4073fcf40606b9d1fab3a26a3a2b48cd12e47f6e01ac02275c6ce9bdb7204edf8722b6422e267d95dc5683beee45c0bfc9ca0ebda9
SSDEEP

12288:YSGQ6/NInfYTy0I4DU1kTWI4buOeBEN6PXnwfqGUu9RpctEXZ6vEU9LT0h:LZfYuzEUAWwfRXn5o+Rs+kh

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Version

3.3.0 Pro

Botnet

RemoteHost

C2

salford1.ddns.net:2404

salford2.ddns.net:2404

salford3.ddns.net:2404

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-EOP31A
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
wikipedia;solitaire;

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2744	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2504 set thread context of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36

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 3 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	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
2744	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
Token: SeDebugPrivilege	2744	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2632	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2744	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	31
PID 2504 wrote to memory of 2744	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	31
PID 2504 wrote to memory of 2744	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	31
PID 2504 wrote to memory of 2744	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	31
PID 2504 wrote to memory of 2876	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	33
PID 2504 wrote to memory of 2876	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	33
PID 2504 wrote to memory of 2876	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	33
PID 2504 wrote to memory of 2876	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	33
PID 2504 wrote to memory of 2892	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	34
PID 2504 wrote to memory of 2892	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	34
PID 2504 wrote to memory of 2892	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	34
PID 2504 wrote to memory of 2892	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	34
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36
PID 2504 wrote to memory of 2632	2504	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	36

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ESxaCYxjHn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E03.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2876
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
  2⤵
  PID:2892
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
148B

MD5
e2ea43bc120de7a1c0ea30f923b00cb1

SHA1
6db8a38c60d24a0f99c09775784824e8bdd412b3

SHA256
dbcff442f5773349171b3095d2f4e004940ec692b28d43ee1733321898ded964

SHA512
bee9e83c71223015e7975bd3640a3e4f52973812787b7516da203a7d42306c073d8b6cde6b622fd92d1768fbc782ffe38cddfe63393e70317ce6c6bafbcd89de

Download Submit
memory/2504-31-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-1-0x00000000009F0000-0x0000000000AAC000-memory.dmp

Filesize
752KB

Download
memory/2504-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2504-4-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2504-5-0x00000000081C0000-0x000000000825C000-memory.dmp

Filesize
624KB

Download
memory/2504-3-0x0000000001FC0000-0x0000000001FCE000-memory.dmp

Filesize
56KB

Download
memory/2504-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-21-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-24-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-27-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-11-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-30-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-15-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-14-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-13-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-12-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-34-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/2632-23-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads