remcos | 8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21-08-2023 03:09

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General

Target

8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe
Size

1.6MB
MD5

0e84a262f3058fd1be57ac21314865df
SHA1

b7a2edd6bca7cf7ad587c4a4706151ae89e8b0cf
SHA256

8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e
SHA512

f7ebfb74e2b0e005d0fc57819b924bc6cc1538962825994173d8ca3e1a13b90b5c417c4f1c5a2e980fa76ed7fadb13131b842c203587896d2260fb06a1aa5d81
SSDEEP

24576:cWO6h662lj4AOId/ajl6Rn4EoNNrXbf6zEGGSJOjBcd/puFf6M67s/gPqsXbx:UdCK4brrn16/psJ/Sx

Score

10^/10

remcos zz rat

Malware Config

Extracted

Family

remcos

Version

4.8.1 Light

Botnet

141.98.83.220:24044

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-NVRZTS
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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2396 set thread context of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1816	ipconfig.exe
2664	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 1732	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	29
PID 2396 wrote to memory of 1732	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	29
PID 2396 wrote to memory of 1732	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	29
PID 2396 wrote to memory of 1732	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	29
PID 1732 wrote to memory of 1816	1732	cmd.exe	31
PID 1732 wrote to memory of 1816	1732	cmd.exe	31
PID 1732 wrote to memory of 1816	1732	cmd.exe	31
PID 1732 wrote to memory of 1816	1732	cmd.exe	31
PID 2396 wrote to memory of 1908	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	34
PID 2396 wrote to memory of 1908	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	34
PID 2396 wrote to memory of 1908	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	34
PID 2396 wrote to memory of 1908	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	34
PID 1908 wrote to memory of 2664	1908	cmd.exe	36
PID 1908 wrote to memory of 2664	1908	cmd.exe	36
PID 1908 wrote to memory of 2664	1908	cmd.exe	36
PID 1908 wrote to memory of 2664	1908	cmd.exe	36
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37
PID 2396 wrote to memory of 1200	2396	8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe	37

C:\Users\Admin\AppData\Local\Temp\8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe
"C:\Users\Admin\AppData\Local\Temp\8ee7b5d2e044e29bc7e45fe46205f3de172aeafaf6b36ba8e73d91e5589fd28e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /release
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /release
    3⤵
    - Gathers network information
    PID:1816
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ipconfig /renew
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /renew
    3⤵
    - Gathers network information
    PID:2664
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:1200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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/1200-1162-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/1200-1164-0x0000000000400000-0x0000000000474000-memory.dmp

Filesize
464KB

Download
memory/2396-97-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-58-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-59-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-95-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-61-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-63-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-65-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-69-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-71-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-67-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-75-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-73-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-77-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-81-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-79-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-93-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-89-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-87-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-85-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-91-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-56-0x00000000050E0000-0x0000000005120000-memory.dmp

Filesize
256KB

Download
memory/2396-57-0x00000000060A0000-0x000000000618C000-memory.dmp

Filesize
944KB

Download
memory/2396-83-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-103-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-101-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-99-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-105-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-107-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-113-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-111-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-109-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-117-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-115-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-119-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-121-0x00000000060A0000-0x0000000006186000-memory.dmp

Filesize
920KB

Download
memory/2396-1135-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/2396-1134-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-1136-0x00000000048A0000-0x0000000004908000-memory.dmp

Filesize
416KB

Download
memory/2396-1137-0x0000000000BA0000-0x0000000000BEC000-memory.dmp

Filesize
304KB

Download
memory/2396-1138-0x00000000050E0000-0x0000000005120000-memory.dmp

Filesize
256KB

Download
memory/2396-1160-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-54-0x0000000001300000-0x0000000001492000-memory.dmp

Filesize
1.6MB

Download
memory/2396-55-0x0000000074290000-0x000000007497E000-memory.dmp

Filesize
6.9MB

Download