remcos | eba5ea29f29169bff70c67736b6848b527625c758f7249333bf07cf07c9da7af

General

Target

(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
Size

780KB
MD5

d8bc7f0f2c13f4b01468fabd70052587
SHA1

e24f28d5331ea1ea1d71aa52194de4bece819fde
SHA256

642a2fa23060f4e4b092a682b248cc386f0ce0a2ee3b0ee2487d9a0b381dc8b9
SHA512

b15e50927bcc31a87bfed919b2f505bbd251176dd1e4506d2450e0eb795e12c88eae7970f8dcd7c1c60f31d4a4cf30304fa544b6a4abc390b80592399e3d0db8
SSDEEP

12288:5PrE0ZQQUWY2WAaWHO52FQqqRNVqeFII4rk61RuLMxyPi3AjSkv:NrEuUWYv3WHA2ubRDidP0MxN3s

Score

10^/10

remcos rekohost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

ReKoHost

C2

eaidali.ddns.net:4784

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
true
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-KX8FWE
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2156 set thread context of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31

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	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2768	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31
PID 2156 wrote to memory of 2768	2156	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	31

C:\Users\Admin\AppData\Local\Temp\(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
"C:\Users\Admin\AppData\Local\Temp\(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Users\Admin\AppData\Local\Temp\(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
  "C:\Users\Admin\AppData\Local\Temp\(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
184B

MD5
5a1207599d13c8000781cc8daa9c4ed9

SHA1
b013db369d264a301b356ef9f6844f821394e6a1

SHA256
8d129d278a4b5458084f078eb7b154295f81cb1b1de8b82a1000572ba5d26f82

SHA512
0796374c30fb79f46a09d388966b734d2772f73b24ca07e945e286731bc66e85bf807e29e8946b576eb46a68383cea5867c61924adca4a18c792b31843d722e6

Download Submit
memory/2156-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2156-1-0x0000000000DB0000-0x0000000000E78000-memory.dmp

Filesize
800KB

Download
memory/2156-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-3-0x00000000005C0000-0x00000000005CA000-memory.dmp

Filesize
40KB

Download
memory/2156-4-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2156-5-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2156-6-0x0000000005F50000-0x000000000600A000-memory.dmp

Filesize
744KB

Download
memory/2156-7-0x0000000004F10000-0x0000000004F8A000-memory.dmp

Filesize
488KB

Download
memory/2156-29-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2768-28-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-10-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-27-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-24-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-23-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-21-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-14-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-18-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-17-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-15-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-13-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-8-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-33-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2768-16-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

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