remcos | 70dd7a119b3450dc3db536085085f2122a8373c9dbcdacbd65e2962e6e79f2e4

Analysis

max time kernel
150s
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
22/10/2024, 13:39

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General

Target

23-59 Electricas BC Corp PO EDC0969387.exe
Size

9KB
MD5

37db6db7ecf11b0a52664d472c5a2e13
SHA1

484783f6ad14c727f3d74077fc9400c8bcd9cfdb
SHA256

0fdf9eea388155e3cd33a26bd9476e576fb4758b8419ff88573c355be475da47
SHA512

c7c8dbcae5a87cfffaee99340375c8e055775e2126e057fd1bd6bc529c3f0486eb43cfbed888d02b0ebe26f5fb8cd21858dfda0c726542d481561dc9e4dd3e8b
SSDEEP

192:aP1Hj0XMpA/k/T+yxi12EaWx63Hy5alpWWyMCN5JPi:adHUmZisEnx63GalpCM0

Score

10^/10

remcos makuo discovery rat

Malware Config

Extracted

Family

remcos

Botnet

makuo

remmyc.duckdns.org:57155

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-82JTYR
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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3148 created 3456	3148	23-59 Electricas BC Corp PO EDC0969387.exe	56

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsPrivate.vbs	23-59 Electricas BC Corp PO EDC0969387.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3148 set thread context of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90

System Location Discovery: System Language Discovery 1 TTPs 2 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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23-59 Electricas BC Corp PO EDC0969387.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3148	23-59 Electricas BC Corp PO EDC0969387.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3148	23-59 Electricas BC Corp PO EDC0969387.exe
Token: SeDebugPrivilege	3148	23-59 Electricas BC Corp PO EDC0969387.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1168	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90
PID 3148 wrote to memory of 1168	3148	23-59 Electricas BC Corp PO EDC0969387.exe	90

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3456
- C:\Users\Admin\AppData\Local\Temp\23-59 Electricas BC Corp PO EDC0969387.exe
  "C:\Users\Admin\AppData\Local\Temp\23-59 Electricas BC Corp PO EDC0969387.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3148
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1168

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
29e311e8f6605f033b8ea1e1a95f73c6

SHA1
e7abab63750b0ae79b6803174cb6699a0a9b1663

SHA256
00bf9e00f5b8f2a33b79e08cfcc64b25145dc5e7a760c190497ae91bbc2a5b06

SHA512
2870b9d02bf5fa841633abc42c677f27f3f973a17a363a707c7bd53b7a2261e8ed87f24b145dd14138bbfd4abfa2795443f0869c91b2c9786dfe724da7686e1f

Download Submit
memory/1168-1101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1168-1115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3148-0-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3148-1-0x00000000007A0000-0x00000000007A8000-memory.dmp

Filesize
32KB

Download
memory/3148-2-0x0000000005150000-0x00000000051E2000-memory.dmp

Filesize
584KB

Download
memory/3148-3-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-4-0x0000000006A90000-0x0000000006BB6000-memory.dmp

Filesize
1.1MB

Download
memory/3148-5-0x00000000071A0000-0x0000000007744000-memory.dmp

Filesize
5.6MB

Download
memory/3148-20-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-29-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-63-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-69-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-67-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-65-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-61-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-60-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-55-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-53-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-51-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-50-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-47-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-45-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-43-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-57-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-41-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-39-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-37-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-35-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-33-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-31-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-27-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-25-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-23-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-21-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-17-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-15-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-13-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-9-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-12-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-7-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-6-0x0000000006A90000-0x0000000006BB0000-memory.dmp

Filesize
1.1MB

Download
memory/3148-1080-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-1081-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-1082-0x0000000006D00000-0x0000000006D98000-memory.dmp

Filesize
608KB

Download
memory/3148-1083-0x0000000006DA0000-0x0000000006DEC000-memory.dmp

Filesize
304KB

Download
memory/3148-1087-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-1089-0x00000000744BE000-0x00000000744BF000-memory.dmp

Filesize
4KB

Download
memory/3148-1090-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-1088-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download
memory/3148-1091-0x0000000006E50000-0x0000000006EA4000-memory.dmp

Filesize
336KB

Download
memory/3148-1102-0x00000000744B0000-0x0000000074C60000-memory.dmp

Filesize
7.7MB

Download