remcos | d951a04002bfca7275d860f6f4ea6572939488c8791a9d6564137304bc534fcf

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 22:27

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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

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
3220	powershell.exe

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1436 set thread context of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102

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
1976	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
3220	powershell.exe
3220	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
Token: SeDebugPrivilege	3220	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4276	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 3220	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	99
PID 1436 wrote to memory of 3220	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	99
PID 1436 wrote to memory of 3220	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	99
PID 1436 wrote to memory of 1976	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	101
PID 1436 wrote to memory of 1976	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	101
PID 1436 wrote to memory of 1976	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	101
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102
PID 1436 wrote to memory of 4276	1436	JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436
- 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:3220
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ESxaCYxjHn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp274A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1976
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3b1732d4f0220b0dc1b6afa25f30f0c5.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:4276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nek2uitd.dvv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
148B

MD5
3075be625161284b6cabd1c2f64187ba

SHA1
c46f117472c1b860dfc16a0ed9cd5e8f54dc46e0

SHA256
c05f0f99f8ef61e30546832fb6abb14b52ca27672e348804359a17fea143a1ab

SHA512
83faf83180f65d3b061c34251253267452290c15990b423442d6d1bf5630be830a4845ffe3806f3e7815803a2604d5d11fa687b01d026dff7c280625d13d0bca

Download Submit
memory/1436-6-0x00000000060D0000-0x000000000616C000-memory.dmp

Filesize
624KB

Download
memory/1436-3-0x0000000004B00000-0x0000000004B92000-memory.dmp

Filesize
584KB

Download
memory/1436-5-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1436-4-0x0000000004C90000-0x0000000004C9A000-memory.dmp

Filesize
40KB

Download
memory/1436-28-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1436-7-0x0000000005090000-0x000000000509E000-memory.dmp

Filesize
56KB

Download
memory/1436-8-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/1436-9-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/1436-10-0x0000000009E00000-0x0000000009E9C000-memory.dmp

Filesize
624KB

Download
memory/1436-2-0x00000000050B0000-0x0000000005654000-memory.dmp

Filesize
5.6MB

Download
memory/1436-0-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/1436-1-0x0000000000080000-0x000000000013C000-memory.dmp

Filesize
752KB

Download
memory/3220-58-0x0000000006F80000-0x0000000007023000-memory.dmp

Filesize
652KB

Download
memory/3220-45-0x0000000005E20000-0x0000000005E6C000-memory.dmp

Filesize
304KB

Download
memory/3220-26-0x0000000074DDE000-0x0000000074DDF000-memory.dmp

Filesize
4KB

Download
memory/3220-27-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/3220-70-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/3220-67-0x00000000073D0000-0x00000000073D8000-memory.dmp

Filesize
32KB

Download
memory/3220-30-0x0000000074DD0000-0x0000000075580000-memory.dmp

Filesize
7.7MB

Download
memory/3220-29-0x0000000004E50000-0x0000000005478000-memory.dmp

Filesize
6.2MB

Download
memory/3220-24-0x00000000023E0000-0x0000000002416000-memory.dmp

Filesize
216KB

Download
memory/3220-66-0x00000000073F0000-0x000000000740A000-memory.dmp

Filesize
104KB

Download
memory/3220-36-0x00000000055B0000-0x00000000055D2000-memory.dmp

Filesize
136KB

Download
memory/3220-41-0x00000000057D0000-0x0000000005836000-memory.dmp

Filesize
408KB

Download
memory/3220-42-0x00000000058B0000-0x0000000005916000-memory.dmp

Filesize
408KB

Download
memory/3220-43-0x0000000005950000-0x0000000005CA4000-memory.dmp

Filesize
3.3MB

Download
memory/3220-44-0x0000000005D90000-0x0000000005DAE000-memory.dmp

Filesize
120KB

Download
memory/3220-65-0x00000000072F0000-0x0000000007304000-memory.dmp

Filesize
80KB

Download
memory/3220-46-0x0000000006360000-0x0000000006392000-memory.dmp

Filesize
200KB

Download
memory/3220-57-0x00000000063A0000-0x00000000063BE000-memory.dmp

Filesize
120KB

Download
memory/3220-47-0x00000000716C0000-0x000000007170C000-memory.dmp

Filesize
304KB

Download
memory/3220-64-0x00000000072E0000-0x00000000072EE000-memory.dmp

Filesize
56KB

Download
memory/3220-59-0x00000000076F0000-0x0000000007D6A000-memory.dmp

Filesize
6.5MB

Download
memory/3220-60-0x00000000070B0000-0x00000000070CA000-memory.dmp

Filesize
104KB

Download
memory/3220-61-0x0000000007120000-0x000000000712A000-memory.dmp

Filesize
40KB

Download
memory/3220-62-0x0000000007330000-0x00000000073C6000-memory.dmp

Filesize
600KB

Download
memory/3220-63-0x00000000072B0000-0x00000000072C1000-memory.dmp

Filesize
68KB

Download
memory/4276-18-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-19-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-17-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-25-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-16-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-72-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/4276-22-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download