remcos | f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2025 15:32

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General

Target

Material Requirments.pif.exe
Size

982KB
MD5

3a9da3edc40736cc832eded3c389a661
SHA1

f32f61fb4458696dae4f15d82377163521e4f8b5
SHA256

f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3
SHA512

a1e2efe247e78cfb0ad62125c69c44200f6fc094085a570a0ad9a4ff3d0f2025eb9f0aacbe7cd7dce46a18121c02d46fec471a3353733a93ec49b6a81d243e95
SSDEEP

24576:rbT8S0ck7b8crshYjBSbIBDESo13E/WFRHVJmSr39RrE:rf8S0cXcrsWtDfoFRVJvNRrE

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

87.120.116.245:2400

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-24L73B
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	Material Requirments.pif.exe

Executes dropped EXE 5 IoCs

pid	Process
528	remcos.exe
1620	remcos.exe
1836	remcos.exe
1952	remcos.exe
5016	remcos.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-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	Material Requirments.pif.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	Material Requirments.pif.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2912 set thread context of 4832	2912	Material Requirments.pif.exe	98
PID 528 set thread context of 5016	528	remcos.exe	106

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	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Material Requirments.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Material Requirments.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
528	remcos.exe
528	remcos.exe
528	remcos.exe
528	remcos.exe
528	remcos.exe
528	remcos.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	528	remcos.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 2912 wrote to memory of 4832	2912	Material Requirments.pif.exe	98
PID 4832 wrote to memory of 528	4832	Material Requirments.pif.exe	99
PID 4832 wrote to memory of 528	4832	Material Requirments.pif.exe	99
PID 4832 wrote to memory of 528	4832	Material Requirments.pif.exe	99
PID 528 wrote to memory of 1620	528	remcos.exe	103
PID 528 wrote to memory of 1620	528	remcos.exe	103
PID 528 wrote to memory of 1620	528	remcos.exe	103
PID 528 wrote to memory of 1836	528	remcos.exe	104
PID 528 wrote to memory of 1836	528	remcos.exe	104
PID 528 wrote to memory of 1836	528	remcos.exe	104
PID 528 wrote to memory of 1952	528	remcos.exe	105
PID 528 wrote to memory of 1952	528	remcos.exe	105
PID 528 wrote to memory of 1952	528	remcos.exe	105
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106
PID 528 wrote to memory of 5016	528	remcos.exe	106

C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe
"C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe
  "C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4832
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.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:528
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      PID:1620
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      PID:1836
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      PID:1952
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:5016

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

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Downloads

C:\ProgramData\Remcos\remcos.exe

Filesize
982KB

MD5
3a9da3edc40736cc832eded3c389a661

SHA1
f32f61fb4458696dae4f15d82377163521e4f8b5

SHA256
f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3

SHA512
a1e2efe247e78cfb0ad62125c69c44200f6fc094085a570a0ad9a4ff3d0f2025eb9f0aacbe7cd7dce46a18121c02d46fec471a3353733a93ec49b6a81d243e95

Download Submit
memory/528-42-0x0000000073F50000-0x0000000074700000-memory.dmp

Filesize
7.7MB

Download
memory/528-32-0x0000000073F50000-0x0000000074700000-memory.dmp

Filesize
7.7MB

Download
memory/528-31-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/528-30-0x0000000073F50000-0x0000000074700000-memory.dmp

Filesize
7.7MB

Download
memory/528-29-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/2912-9-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2912-4-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/2912-8-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2912-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2912-10-0x0000000007190000-0x0000000007254000-memory.dmp

Filesize
784KB

Download
memory/2912-1-0x0000000000DA0000-0x0000000000E9C000-memory.dmp

Filesize
1008KB

Download
memory/2912-2-0x0000000005FD0000-0x0000000006574000-memory.dmp

Filesize
5.6MB

Download
memory/2912-3-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/2912-7-0x0000000005BE0000-0x0000000005BFC000-memory.dmp

Filesize
112KB

Download
memory/2912-17-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/2912-6-0x0000000005A20000-0x0000000005ABC000-memory.dmp

Filesize
624KB

Download
memory/2912-5-0x00000000745B0000-0x0000000074D60000-memory.dmp

Filesize
7.7MB

Download
memory/4832-15-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4832-11-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4832-14-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4832-12-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4832-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5016-55-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download