remcos | 2ed5e08904545beef35a09a2be25b45215218b8a4e7d5f9711125f92d8b86a6f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 02:15

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General

Target

Purchase Inquiry_002.exe
Size

893KB
MD5

c016b06a4942455df9ce8a58b72bcc90
SHA1

dba52afe33451c444fd5cf3c6aca9d2ced768d2c
SHA256

e115d3bd2903d9d663a7a69edd08b0ba5f2528c831d17530bbf621648b44894c
SHA512

961475a98cfdc14a29725b43c1807a3eda08a2257f50d216375faf262880ce39cf7847d00263d00fd1ce032ad14fbb003b3ab1e78bbd25b3a644f3d6746168fe
SSDEEP

24576:WNo7gN9rqhq/5UqutCi1BDUTskujqA5pd6p3MFHdIvYV:QL2hq/6q1i1h4v3A5pdSOWvY

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

Processes:

powershell.exepowershell.exe

pid process

3700 powershell.exe
1660 powershell.exe

pid	process
3700	powershell.exe
1660	powershell.exe

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

Processes:

Purchase Inquiry_002.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Purchase Inquiry_002.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Purchase Inquiry_002.exe

description pid process target process

PID 5044 set thread context of 1548 5044 Purchase Inquiry_002.exe Purchase Inquiry_002.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 5044 set thread context of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe

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

Processes:

Purchase Inquiry_002.exepowershell.exepowershell.exeschtasks.exePurchase Inquiry_002.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Purchase Inquiry_002.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	Purchase Inquiry_002.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

Processes:

schtasks.exe

pid process

4280 schtasks.exe

pid	process
4280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

Purchase Inquiry_002.exepowershell.exepowershell.exe

pid	process
5044	Purchase Inquiry_002.exe
5044	Purchase Inquiry_002.exe
5044	Purchase Inquiry_002.exe
5044	Purchase Inquiry_002.exe
5044	Purchase Inquiry_002.exe
5044	Purchase Inquiry_002.exe
1660	powershell.exe
3700	powershell.exe
5044	Purchase Inquiry_002.exe
1660	powershell.exe
3700	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Purchase Inquiry_002.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	5044	Purchase Inquiry_002.exe
Token: SeDebugPrivilege	1660	powershell.exe
Token: SeDebugPrivilege	3700	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Purchase Inquiry_002.exe

pid process

1548 Purchase Inquiry_002.exe

pid	process
1548	Purchase Inquiry_002.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Purchase Inquiry_002.exe

description	pid	process	target process
PID 5044 wrote to memory of 1660	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 1660	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 1660	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 3700	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 3700	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 3700	5044	Purchase Inquiry_002.exe	powershell.exe
PID 5044 wrote to memory of 4280	5044	Purchase Inquiry_002.exe	schtasks.exe
PID 5044 wrote to memory of 4280	5044	Purchase Inquiry_002.exe	schtasks.exe
PID 5044 wrote to memory of 4280	5044	Purchase Inquiry_002.exe	schtasks.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe
PID 5044 wrote to memory of 1548	5044	Purchase Inquiry_002.exe	Purchase Inquiry_002.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_002.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_002.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5044
- 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\Purchase Inquiry_002.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1660
- 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:3700
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xASiLfzXONGIW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E41.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4280
- C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_002.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry_002.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1548

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

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\ios\logs.dat

Filesize
144B

MD5
5551c5e0a8b2670bf4f393c481426053

SHA1
90bfbe09cf9e958b330f0d00377b45f7de664bc7

SHA256
fa03646b5eb914ca71e7ab17f5244bcf7713090c74ece45452cbf560f9420011

SHA512
829e5078d274f6ac2b1e3afa5f99bd3d7516f6393950dc00a5bf1c448a8fae20f961f6d18639fac379b856be078e4d01ce1d6547f195c0ec654d55e90c49a715

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
86b8996b32612b819577476f6c0f2a57

SHA1
bfd3f4c084775aa34cc82255b636fde3eca288fc

SHA256
631b77937e8f53310b0106c7bb5d3f116b63e36f6d267e34270af99f3b918531

SHA512
4b433b8f7b7291ed23a32b364655b6ca196e652dfd99b274a54b99288fe95ac8946e1b75ef048e1c7ccb9a4f761e79688feb2a987b299ac70f183666988f4165

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f31bqxbs.35l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1E41.tmp

Filesize
1KB

MD5
70c75bdf2d3fcd0c2fe828600c05842b

SHA1
8bee5365cba1335bac3ba924f9738c81c9053a2c

SHA256
10e0f1a5d139a3a18cc55eda6dc2bfc1ce29211f8e04cb5ad41eb286aeafdb75

SHA512
5a3de4d402aba58c89f7a964ec90dbbcf81ea2c9e346ac9d435276267521db37a2602bd1b1403bc523d5834846e5547acc2da4cdb73dd1d1f4fe46fd234de612

Download Submit
memory/1548-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-121-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1548-122-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1660-54-0x0000000005BB0000-0x0000000005BFC000-memory.dmp

Filesize
304KB

Download
memory/1660-97-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1660-23-0x0000000005230000-0x0000000005296000-memory.dmp

Filesize
408KB

Download
memory/1660-26-0x0000000005490000-0x00000000057E4000-memory.dmp

Filesize
3.3MB

Download
memory/1660-22-0x0000000004B30000-0x0000000004B52000-memory.dmp

Filesize
136KB

Download
memory/1660-90-0x0000000007060000-0x0000000007074000-memory.dmp

Filesize
80KB

Download
memory/1660-19-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1660-17-0x0000000004C00000-0x0000000005228000-memory.dmp

Filesize
6.2MB

Download
memory/1660-18-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1660-88-0x0000000007020000-0x0000000007031000-memory.dmp

Filesize
68KB

Download
memory/1660-52-0x0000000005AD0000-0x0000000005AEE000-memory.dmp

Filesize
120KB

Download
memory/1660-24-0x00000000053A0000-0x0000000005406000-memory.dmp

Filesize
408KB

Download
memory/1660-87-0x00000000070A0000-0x0000000007136000-memory.dmp

Filesize
600KB

Download
memory/1660-16-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/1660-15-0x0000000002210000-0x0000000002246000-memory.dmp

Filesize
216KB

Download
memory/1660-91-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/1660-92-0x0000000007140000-0x0000000007148000-memory.dmp

Filesize
32KB

Download
memory/1660-61-0x0000000006C50000-0x0000000006C82000-memory.dmp

Filesize
200KB

Download
memory/1660-72-0x0000000006C90000-0x0000000006CAE000-memory.dmp

Filesize
120KB

Download
memory/1660-73-0x0000000006CC0000-0x0000000006D63000-memory.dmp

Filesize
652KB

Download
memory/1660-62-0x000000006ED70000-0x000000006EDBC000-memory.dmp

Filesize
304KB

Download
memory/1660-74-0x0000000007460000-0x0000000007ADA000-memory.dmp

Filesize
6.5MB

Download
memory/1660-85-0x0000000006E20000-0x0000000006E3A000-memory.dmp

Filesize
104KB

Download
memory/3700-75-0x000000006ED70000-0x000000006EDBC000-memory.dmp

Filesize
304KB

Download
memory/3700-86-0x0000000007760000-0x000000000776A000-memory.dmp

Filesize
40KB

Download
memory/3700-98-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/3700-25-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/3700-89-0x0000000007920000-0x000000000792E000-memory.dmp

Filesize
56KB

Download
memory/3700-20-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/5044-0-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/5044-9-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/5044-8-0x0000000005A20000-0x0000000005A32000-memory.dmp

Filesize
72KB

Download
memory/5044-10-0x0000000007540000-0x0000000007600000-memory.dmp

Filesize
768KB

Download
memory/5044-53-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/5044-7-0x000000007445E000-0x000000007445F000-memory.dmp

Filesize
4KB

Download
memory/5044-6-0x0000000005050000-0x00000000050EC000-memory.dmp

Filesize
624KB

Download
memory/5044-5-0x0000000074450000-0x0000000074C00000-memory.dmp

Filesize
7.7MB

Download
memory/5044-4-0x0000000004FA0000-0x0000000004FAA000-memory.dmp

Filesize
40KB

Download
memory/5044-3-0x0000000004DE0000-0x0000000004E72000-memory.dmp

Filesize
584KB

Download
memory/5044-2-0x0000000005290000-0x0000000005834000-memory.dmp

Filesize
5.6MB

Download
memory/5044-1-0x0000000000350000-0x0000000000436000-memory.dmp

Filesize
920KB

Download