remcos | 4cbaba0f916064b426dfd3b2b5a86c1c69c3ead978c3d143e05b88a536b29cfd

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
04-02-2025 08:48

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General

Target

GK098765000900000.exe
Size

852KB
MD5

16d59170db4782c9bba800a67dc79644
SHA1

1856e628a3779d775868403692c44afae8f061f0
SHA256

d02b26fd892d539b931cc6949e1faad954e1febb629d5398a44ba252f7814e87
SHA512

6833b84035d24e35051492a8c5bec84035dacb36448239272e66e71df19b775eb7fd8af921d5379ad2d324eebe46c8ac5237a33b33e88b89d115b7b1390a5bb7
SSDEEP

24576:kSfQzi/Pi+jnpOI2mDhFiR0UMmRtuexCjASZ:kSfAqPiupOyj00Lm3ueojhZ

Score

10^/10

remcos john-pc discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

JOHN-PC

107.175.229.139:8087

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-IN4YDY
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2764	powershell.exe
1284	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 2616	3056	GK098765000900000.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 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	GK098765000900000.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2360	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3056	GK098765000900000.exe
3056	GK098765000900000.exe
1284	powershell.exe
2764	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	GK098765000900000.exe
Token: SeDebugPrivilege	1284	powershell.exe
Token: SeDebugPrivilege	2764	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2764	3056	GK098765000900000.exe	30
PID 3056 wrote to memory of 2764	3056	GK098765000900000.exe	30
PID 3056 wrote to memory of 2764	3056	GK098765000900000.exe	30
PID 3056 wrote to memory of 2764	3056	GK098765000900000.exe	30
PID 3056 wrote to memory of 1284	3056	GK098765000900000.exe	32
PID 3056 wrote to memory of 1284	3056	GK098765000900000.exe	32
PID 3056 wrote to memory of 1284	3056	GK098765000900000.exe	32
PID 3056 wrote to memory of 1284	3056	GK098765000900000.exe	32
PID 3056 wrote to memory of 2360	3056	GK098765000900000.exe	34
PID 3056 wrote to memory of 2360	3056	GK098765000900000.exe	34
PID 3056 wrote to memory of 2360	3056	GK098765000900000.exe	34
PID 3056 wrote to memory of 2360	3056	GK098765000900000.exe	34
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36
PID 3056 wrote to memory of 2616	3056	GK098765000900000.exe	36

C:\Users\Admin\AppData\Local\Temp\GK098765000900000.exe
"C:\Users\Admin\AppData\Local\Temp\GK098765000900000.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3056
- 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\GK098765000900000.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XTRpeYnTwmomU.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1284
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XTRpeYnTwmomU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A38.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\GK098765000900000.exe
  "C:\Users\Admin\AppData\Local\Temp\GK098765000900000.exe"
  2⤵
  PID:2616

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

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\tmp6A38.tmp

Filesize
1KB

MD5
cd9b7f849dc2a1eda44df8021f35d6ce

SHA1
a49792723e23801910fe0f556cf66d02df6457a7

SHA256
8bacdfee583c6b532b6f03cd6e373a899856534ca11caafbdb7283bc2c641be9

SHA512
00661585fab2da8a703aada5415b12d5dfb0c7bb0f44b4203b6830436d336fd305fbb407d86e872efe7bab9f765639aa92ad161ad99000c5b3a09f6895dfab61

Download Submit
memory/2616-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2616-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3056-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/3056-6-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/3056-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/3056-39-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/3056-1-0x00000000011E0000-0x00000000012BC000-memory.dmp

Filesize
880KB

Download
memory/3056-7-0x0000000004990000-0x0000000004A48000-memory.dmp

Filesize
736KB

Download
memory/3056-5-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/3056-4-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/3056-3-0x0000000000290000-0x00000000002A2000-memory.dmp

Filesize
72KB

Download