remcos | 3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-12-2024 21:18

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General

Target

3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
Size

893KB
MD5

205f6af195f367a1f6f0d3e591c7d226
SHA1

883e78287a64bac5435beada7b5f283c11df9a8f
SHA256

3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a
SHA512

defce7df2c8b0fcfc6cd93bad5736e0262c616e4a75647619382b064604ea3fc785832ea40c0e84006817110d2fca6f4ae461011ad70699231c4a614c6fc87c2
SSDEEP

24576:WNo7gN9rqhq/5UqutCi1BDUTskujqA5pd6p3MFHdIvYV/:QL2hq/6q1i1h4v3A5pdSOWvY1

Score

10^/10

remcos cee discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

cee

cee.work.gd:2531

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
ios
mouse_option
false
mutex
gig-1IH5DX
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
sos
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
2112	powershell.exe
2596	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2892 set thread context of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37

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 5 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	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.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
2644	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
2112	powershell.exe
2596	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
Token: SeDebugPrivilege	2112	powershell.exe
Token: SeDebugPrivilege	2596	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2080	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2892 wrote to memory of 2112	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	31
PID 2892 wrote to memory of 2112	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	31
PID 2892 wrote to memory of 2112	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	31
PID 2892 wrote to memory of 2112	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	31
PID 2892 wrote to memory of 2596	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	33
PID 2892 wrote to memory of 2596	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	33
PID 2892 wrote to memory of 2596	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	33
PID 2892 wrote to memory of 2596	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	33
PID 2892 wrote to memory of 2644	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	34
PID 2892 wrote to memory of 2644	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	34
PID 2892 wrote to memory of 2644	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	34
PID 2892 wrote to memory of 2644	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	34
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37
PID 2892 wrote to memory of 2080	2892	3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe	37

C:\Users\Admin\AppData\Local\Temp\3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
"C:\Users\Admin\AppData\Local\Temp\3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2892
- 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\3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2112
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xASiLfzXONGIW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2596
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xASiLfzXONGIW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD04.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2644
- C:\Users\Admin\AppData\Local\Temp\3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe
  "C:\Users\Admin\AppData\Local\Temp\3fc3e4fb5fe0f470d30dd3fe84267348263f425e02bc757a0b35f4fb0bb4806a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2080

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:\ProgramData\ios\logs.dat

Filesize
144B

MD5
dc1af43b58313395acef1e4cc6fdb5ba

SHA1
499ae02605ca2c8d24215fb2bea418063ef1e681

SHA256
1abcf9a10771985915ad4f93dfa6ccd5a71973f56dcf59a735758bdf7084f1d0

SHA512
76e0a6c7fa85a92ac81226787eb37a133781c8cb96c8f4e9a96376f2cf8b22ca504e04f4c75f461b6ddf6a61af2cebf2392e01eee33590f83f60e6f175276818

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpFD04.tmp

Filesize
1KB

MD5
8da220ceafc0f0f8820b838009deb03f

SHA1
4417674d5ddf089b618a5c075bcc15b37f8c4fdc

SHA256
0873ee37ac44f24fba10e117fec095eddd2d67a3dd032ab2587c03affbbb51fd

SHA512
d39d06924139f296faaaa1395558c5bcbcaa61e77997b59d74ed903c9db26fecef0167eae66109e717698b3b85c44f910fe39dedab0968e06bd66672539b5962

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\O46XBVCPYETVHVHYGDTS.temp

Filesize
7KB

MD5
23865d796b47659e9cd88ac54371ee7d

SHA1
0b40d4b1494e71202e66b8c21a8ca5f91a3bebcf

SHA256
d52dfe956b041e5f0c9959da807cb2ce46ea108f56f44b7affa5061466ccedb4

SHA512
ad199ef5ee3621ebd2187f82af89f217fb2ec37d0ae59ba5972266f8435fc64665cfeae811886006377924a69bd1383d8be9123589aa7c42d6eb2476fc317ded

Download Submit
memory/2080-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-90-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-89-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-86-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2080-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2080-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-41-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-5-0x00000000052A0000-0x0000000005360000-memory.dmp

Filesize
768KB

Download
memory/2892-4-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-3-0x0000000000210000-0x0000000000222000-memory.dmp

Filesize
72KB

Download
memory/2892-2-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-1-0x0000000001260000-0x0000000001346000-memory.dmp

Filesize
920KB

Download
memory/2892-0-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download