remcos | db00ce1def9794a4f5533677848d58d84f6950c1f57572b877a591f4e5ba2dc2

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 12:46

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General

Target

cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Size

1.4MB
MD5

79fc587b75385d13a0aefbb63b8f83a5
SHA1

fa71271dfc2926c711a1adf676e42ba7ab5421fa
SHA256

cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3
SHA512

217f0a63af9960e7ac5e705da10b675d0ee8573396d819aa7e013766cd34c292e1afa8439d6c55c9f35e003fb06eb5278c2e8340a966da8e1c8b2a36498aa08d
SSDEEP

24576:QGnA++3gtc0rx4bYY8nwoTsSofnHZPvg4l7v7aeUYSikCqRy:6++3sOMwo6Z3zlzlBSikCk

Score

10^/10

remcos fresh port discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

FRESH PORT

emarketinglatakva.ddns.net:9794

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-Z9DAML
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
notepad;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
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
1832	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4740 set thread context of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95

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	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.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
3088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
1832	powershell.exe
4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
1832	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
Token: SeDebugPrivilege	1832	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4892	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 1832	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	91
PID 4740 wrote to memory of 1832	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	91
PID 4740 wrote to memory of 1832	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	91
PID 4740 wrote to memory of 3088	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	93
PID 4740 wrote to memory of 3088	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	93
PID 4740 wrote to memory of 3088	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	93
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95
PID 4740 wrote to memory of 4892	4740	cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe	95

C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
"C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.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:4740
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ijAhEpVZOK.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1832
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ijAhEpVZOK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp438C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3088
- C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe
  "C:\Users\Admin\AppData\Local\Temp\cdc54d976ad3af85f5f268a0efd2f0e19fede6b0d2e11eed89d4b24fe98c5cd3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4892

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pa3jcxos.le5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp438C.tmp

Filesize
1KB

MD5
602dff5b884d9182ad31469a367a544f

SHA1
c61744bf354468fdb51522b2ef9b11982eba5580

SHA256
3f6ca81e1e8d5f1ea9ce7b0bd6e5b890943b5acaec2428a17c751c729bf30151

SHA512
4a95dd0cb0c17e7034568d8c1a0f9ec06fde3a01ab20b14c1d5c813d5eca084875b5abd166552ea1096815b23da06a3e0261c9d788cfed997d1e5f99d19a027c

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
144B

MD5
327c96b4c86393d54f80b0c036954625

SHA1
32091f4c05ea320828cc6fbd51be2265ac66cd97

SHA256
587dbaae7e5a7a11c492004e23f30057e6f0824ba1be8a1c1d638cd2cde8c1b8

SHA512
3aaaded4e7392916d7c45499ef4f1d3c8a67bbcb8a3e3695658bdcaf4fece77678845af053b5dda6587f82ebd38c101fceea12f843627496439489a4ed0be093

Download Submit
memory/1832-61-0x00000000070D0000-0x00000000070EA000-memory.dmp

Filesize
104KB

Download
memory/1832-60-0x0000000007710000-0x0000000007D8A000-memory.dmp

Filesize
6.5MB

Download
memory/1832-44-0x0000000005DB0000-0x0000000005DCE000-memory.dmp

Filesize
120KB

Download
memory/1832-45-0x0000000005E70000-0x0000000005EBC000-memory.dmp

Filesize
304KB

Download
memory/1832-71-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1832-68-0x00000000073F0000-0x00000000073F8000-memory.dmp

Filesize
32KB

Download
memory/1832-67-0x0000000007410000-0x000000000742A000-memory.dmp

Filesize
104KB

Download
memory/1832-66-0x0000000007310000-0x0000000007324000-memory.dmp

Filesize
80KB

Download
memory/1832-15-0x00000000047E0000-0x0000000004816000-memory.dmp

Filesize
216KB

Download
memory/1832-16-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1832-65-0x0000000007300000-0x000000000730E000-memory.dmp

Filesize
56KB

Download
memory/1832-18-0x0000000004F40000-0x0000000005568000-memory.dmp

Filesize
6.2MB

Download
memory/1832-19-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1832-64-0x00000000072D0000-0x00000000072E1000-memory.dmp

Filesize
68KB

Download
memory/1832-63-0x0000000007350000-0x00000000073E6000-memory.dmp

Filesize
600KB

Download
memory/1832-62-0x0000000007140000-0x000000000714A000-memory.dmp

Filesize
40KB

Download
memory/1832-37-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1832-59-0x0000000006DD0000-0x0000000006E73000-memory.dmp

Filesize
652KB

Download
memory/1832-58-0x00000000063A0000-0x00000000063BE000-memory.dmp

Filesize
120KB

Download
memory/1832-48-0x000000006F4A0000-0x000000006F4EC000-memory.dmp

Filesize
304KB

Download
memory/1832-26-0x0000000005670000-0x00000000056D6000-memory.dmp

Filesize
408KB

Download
memory/1832-47-0x0000000006360000-0x0000000006392000-memory.dmp

Filesize
200KB

Download
memory/1832-23-0x0000000004DD0000-0x0000000004DF2000-memory.dmp

Filesize
136KB

Download
memory/1832-24-0x0000000004E70000-0x0000000004ED6000-memory.dmp

Filesize
408KB

Download
memory/1832-43-0x0000000005760000-0x0000000005AB4000-memory.dmp

Filesize
3.3MB

Download
memory/4740-9-0x0000000008350000-0x00000000083EC000-memory.dmp

Filesize
624KB

Download
memory/4740-7-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4740-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4740-5-0x0000000005190000-0x000000000519A000-memory.dmp

Filesize
40KB

Download
memory/4740-6-0x0000000007B50000-0x0000000007B5A000-memory.dmp

Filesize
40KB

Download
memory/4740-2-0x00000000054A0000-0x0000000005A44000-memory.dmp

Filesize
5.6MB

Download
memory/4740-8-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4740-10-0x00000000088C0000-0x0000000008A02000-memory.dmp

Filesize
1.3MB

Download
memory/4740-1-0x0000000000490000-0x00000000005FA000-memory.dmp

Filesize
1.4MB

Download
memory/4740-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4740-46-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4740-3-0x0000000004FD0000-0x0000000005062000-memory.dmp

Filesize
584KB

Download
memory/4740-20-0x00000000061A0000-0x000000000621A000-memory.dmp

Filesize
488KB

Download
memory/4892-22-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-30-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-74-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-42-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-25-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-27-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/4892-21-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download