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 808 set thread context of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.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	(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
808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe
808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2312	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90
PID 808 wrote to memory of 2312	808	(ASTRACO LLC_QNTY ORDER &PRICE REQUEST_doc.exe	90

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:808
- 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:2312

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
af6c493bb2737569ed0181c0f4cc8f32

SHA1
cf6d81163bd6303c3b154ed888e28dc8290fe4d8

SHA256
803d89fe5a9cb41f9bf476ee7a4339c2680b6621fe6463ed37f8631814713aa8

SHA512
e162fd01d4a11e79f42e6fd2754625d8cbf0674fa19bdae779dc626f26533f24d3b12176b64c90f7d6dfbb58243b7d83682ab742361d7079c5f23157dca932f2

Download Submit
memory/808-10-0x0000000007FD0000-0x000000000808A000-memory.dmp

Filesize
744KB

Download
memory/808-22-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/808-3-0x0000000004D20000-0x0000000004DB2000-memory.dmp

Filesize
584KB

Download
memory/808-4-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/808-5-0x0000000004D00000-0x0000000004D0A000-memory.dmp

Filesize
40KB

Download
memory/808-6-0x00000000053E0000-0x00000000053EA000-memory.dmp

Filesize
40KB

Download
memory/808-7-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/808-11-0x0000000008240000-0x00000000082A6000-memory.dmp

Filesize
408KB

Download
memory/808-1-0x0000000000280000-0x0000000000348000-memory.dmp

Filesize
800KB

Download
memory/808-2-0x0000000005400000-0x00000000059A4000-memory.dmp

Filesize
5.6MB

Download
memory/808-8-0x00000000745D0000-0x0000000074D80000-memory.dmp

Filesize
7.7MB

Download
memory/808-12-0x00000000083B0000-0x000000000842A000-memory.dmp

Filesize
488KB

Download
memory/808-9-0x0000000007D10000-0x0000000007DAC000-memory.dmp

Filesize
624KB

Download
memory/808-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/2312-16-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2312-21-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2312-17-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2312-14-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2312-26-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2312-13-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download

Analysis

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