remcos | 66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 01:54

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General

Target

66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
Size

900KB
MD5

a1e1f9aef9a168423b2f0cd1dbe2ba9a
SHA1

921abb3a628f79b295c92d7298da8dfedc1b9376
SHA256

66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d
SHA512

6281720fd5a85723cb6cc85845fa4895cf0190cad58a4924c2a36a0d7d7b6f41b4a2f1c7bf005e969c5e973294c287a3c5c1c2c91029fd40b0d6a697e2bcd673
SSDEEP

24576:kpdp7oz4EdD2Vw6byE1MVoLVKbG65MyekkQ40e8nk9IN:kP7iqLy5VoLVCdJe5QX

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.projectusf.com:2404

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
gfh
mouse_option
false
mutex
Rmc-J91LMC
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

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
1092	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 984 set thread context of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33

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	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.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	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.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
2680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1092	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1092	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2672	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 984 wrote to memory of 1092	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	29
PID 984 wrote to memory of 1092	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	29
PID 984 wrote to memory of 1092	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	29
PID 984 wrote to memory of 1092	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	29
PID 984 wrote to memory of 2680	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	31
PID 984 wrote to memory of 2680	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	31
PID 984 wrote to memory of 2680	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	31
PID 984 wrote to memory of 2680	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	31
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33
PID 984 wrote to memory of 2672	984	66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe	33

C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
"C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:984
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AWLIvgmtRIHlb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1092
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AWLIvgmtRIHlb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp51D8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2680
- C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe
  "C:\Users\Admin\AppData\Local\Temp\66c41f2310824c8b5b2365a2283d28c5b47d2a829afa45a1b00b710259d9622d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2672

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

Loading Replay Monitor...

Downloads

C:\ProgramData\gfh\logs.dat

Filesize
144B

MD5
96576650a75834a61fe12734d2929be0

SHA1
3b7a03eb6ad5d8b460ae8ea409955856a96cc2d5

SHA256
c2fb2e877f386e9f8399852aeafa68110970dd9172e454dd379c8b137cbcce9e

SHA512
48a326c806726f05143cb3c13f3375b349316420fdee504c7f1500fa57708f07823a4a3bff6f09700db987fa056e49e9172552bf8d471e21c63a580331e7f714

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp51D8.tmp

Filesize
1KB

MD5
6380863a5b71f93b170881616be4d7d0

SHA1
e23310726d134f0f8e0f5a9d715399f6022acd2f

SHA256
9e930395ecdca5c2ab4edf29f7beca2c28a8762c4ff4dd7ff0857b300839f336

SHA512
36febf066c6c95fba561a5a8fd560f317215c4afd48393d9a7a7e2a41552eaa56718ce4c103d4d0946b775318e08f9dd911ff9c2e12b719bec26567f8b3daa88

Download Submit
memory/984-0-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/984-1-0x0000000001020000-0x0000000001108000-memory.dmp

Filesize
928KB

Download
memory/984-2-0x0000000074710000-0x0000000074DFE000-memory.dmp

Filesize
6.9MB

Download
memory/984-3-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/984-4-0x000000007471E000-0x000000007471F000-memory.dmp

Filesize
4KB

Download
memory/984-5-0x0000000074710000-0x0000000074DFE000-memory.dmp

Filesize
6.9MB

Download
memory/984-6-0x0000000005440000-0x0000000005500000-memory.dmp

Filesize
768KB

Download
memory/984-38-0x0000000074710000-0x0000000074DFE000-memory.dmp

Filesize
6.9MB

Download
memory/2672-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2672-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download