remcos | ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958

Analysis

max time kernel
119s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 00:34

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General

Target

ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
Size

1.0MB
MD5

1d1f700e4ea352cb6078f0205608f3d0
SHA1

853f50de0accd7f098e6b5a9e691435be2bcb758
SHA256

ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958
SHA512

c0e9be003625557943197643f72ff040e46456490f9069e8eb98dd7f22925c314e985bed98ad33f1be7da48c57a6b6323454a1f4eb5ef62fa24cc8d42d44de1b
SSDEEP

24576:CyBKoy6YVR7YW/+mJZcchEVq3xwhCR9est:zJLYzYWxZhEw3x6C9es

Score

10^/10

remcos remotehost-new discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost-NEW

zitodavina.duckdns.org:9675

kizitodavina.kozow.com:9675

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Audio.exe
copy_folder
WindowsAudio
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%Temp%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
logz
mouse_option
false
mutex
Rmc-2K9NTE
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe

Executes dropped EXE 2 IoCs

pid	Process
2856	Audio.exe
4976	Audio.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-2K9NTE = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsAudio\\Audio.exe\""	Audio.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-2K9NTE = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsAudio\\Audio.exe\""	Audio.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-2K9NTE = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsAudio\\Audio.exe\""	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-2K9NTE = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WindowsAudio\\Audio.exe\""	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3304 set thread context of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 2856 set thread context of 4976	2856	Audio.exe	101

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	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Audio.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Audio.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
2856	Audio.exe
2856	Audio.exe
2856	Audio.exe
2856	Audio.exe
2856	Audio.exe
2856	Audio.exe
2856	Audio.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
Token: SeDebugPrivilege	2856	Audio.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4976	Audio.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 3304 wrote to memory of 1068	3304	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	96
PID 1068 wrote to memory of 2856	1068	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	97
PID 1068 wrote to memory of 2856	1068	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	97
PID 1068 wrote to memory of 2856	1068	ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe	97
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101
PID 2856 wrote to memory of 4976	2856	Audio.exe	101

C:\Users\Admin\AppData\Local\Temp\ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
"C:\Users\Admin\AppData\Local\Temp\ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3304
- C:\Users\Admin\AppData\Local\Temp\ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe
  "C:\Users\Admin\AppData\Local\Temp\ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958N.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Users\Admin\AppData\Local\Temp\WindowsAudio\Audio.exe
    "C:\Users\Admin\AppData\Local\Temp\WindowsAudio\Audio.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - C:\Users\Admin\AppData\Local\Temp\WindowsAudio\Audio.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsAudio\Audio.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:4976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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:\ProgramData\logz\logs.dat

Filesize
144B

MD5
570df7bd56a131ffcc5109a4d633eeff

SHA1
f8ccc1255c34ce6d84ad41486bdd86e0ec15a8cf

SHA256
a161b82fa77f218bf2d493c03bc726c7736194d54f2fe5e4ea194ae7d999e898

SHA512
8d0f23975a6f8407972e3e2b1921b393d0aadf04582bead215e455973645a2571e461ebd0fedd80222f8c99c09b58d95802a129080854775017d148aeb8b4553

Download Submit
C:\Users\Admin\AppData\Local\Temp\WindowsAudio\Audio.exe

Filesize
1.0MB

MD5
1d1f700e4ea352cb6078f0205608f3d0

SHA1
853f50de0accd7f098e6b5a9e691435be2bcb758

SHA256
ab76db9334148f06e9422cb37bd4d3208fadd5fb17d3b36b4ac6db7996a77958

SHA512
c0e9be003625557943197643f72ff040e46456490f9069e8eb98dd7f22925c314e985bed98ad33f1be7da48c57a6b6323454a1f4eb5ef62fa24cc8d42d44de1b

Download Submit
memory/1068-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1068-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1068-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1068-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1068-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2856-42-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/2856-32-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/2856-31-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/2856-30-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/2856-29-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/3304-1-0x0000000000610000-0x0000000000714000-memory.dmp

Filesize
1.0MB

Download
memory/3304-8-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3304-9-0x0000000008F70000-0x0000000009034000-memory.dmp

Filesize
784KB

Download
memory/3304-10-0x000000000C6B0000-0x000000000C74C000-memory.dmp

Filesize
624KB

Download
memory/3304-7-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/3304-6-0x0000000007850000-0x0000000007868000-memory.dmp

Filesize
96KB

Download
memory/3304-5-0x0000000001300000-0x000000000130A000-memory.dmp

Filesize
40KB

Download
memory/3304-4-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3304-3-0x0000000007610000-0x00000000076A2000-memory.dmp

Filesize
584KB

Download
memory/3304-17-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/3304-2-0x0000000007AE0000-0x0000000008084000-memory.dmp

Filesize
5.6MB

Download
memory/3304-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/4976-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-86-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-90-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-91-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-93-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4976-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download