remcos | f8e8e8ee70d44b81dcb14b4e94163846c315c2d45ecb5a3888fd6db8a2e20714

General

Target

Quote.exe
Size

1.6MB
MD5

73da95db4e2d451af39f2e3d0d102836
SHA1

9d387a0f9f90686439406f1cc96a0eb3511a88b4
SHA256

f8e8e8ee70d44b81dcb14b4e94163846c315c2d45ecb5a3888fd6db8a2e20714
SHA512

a83f9aad5aa9b853b3674d628de1aab7d714191627c64779243954e5643c1f1565fdf4943e4ed3bed1f85046cf1b8eb86c3d0e5db3d4e81397db24f8076a7f57
SSDEEP

24576:ffmMv6Ckr7Mny5QLYXROlErRU3BobqTxRLGutJ3lzpHax8CS1/rW+9tMeOW0SYoq:f3v+7/5QLYkuYoGTxp6xe/rWuM89I

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.projectusf.com:2404

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
gfh
mouse_option
false
mutex
Rmc-J91LMC
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Quote.vbs	Quote.exe

Executes dropped EXE 1 IoCs

pid	Process
684	Quote.exe

Loads dropped DLL 1 IoCs

pid	Process
388	Quote.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000700000001921f-4.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 684 set thread context of 2452	684	Quote.exe	32

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	Quote.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
684	Quote.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2452	svchost.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 684	388	Quote.exe	31
PID 388 wrote to memory of 684	388	Quote.exe	31
PID 388 wrote to memory of 684	388	Quote.exe	31
PID 388 wrote to memory of 684	388	Quote.exe	31
PID 684 wrote to memory of 2452	684	Quote.exe	32
PID 684 wrote to memory of 2452	684	Quote.exe	32
PID 684 wrote to memory of 2452	684	Quote.exe	32
PID 684 wrote to memory of 2452	684	Quote.exe	32
PID 684 wrote to memory of 2452	684	Quote.exe	32

C:\Users\Admin\AppData\Local\Temp\Quote.exe
"C:\Users\Admin\AppData\Local\Temp\Quote.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:388
- C:\Users\Admin\AppData\Local\directory\Quote.exe
  "C:\Users\Admin\AppData\Local\Temp\Quote.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:684
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Quote.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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:\ProgramData\gfh\logs.dat

Filesize
144B

MD5
4cd67f0e5a07e841c1f5af29e51153fb

SHA1
4cf22fb35227697eb874e0f23f88b5286e31542e

SHA256
9823bc4f75905348ce300ee18d5c8204648053a0b45b97beb2beb61729efb314

SHA512
0b108e810ad0a528614f4617948d1d7707f5e0fe66ffed0939c86f1e6d132622c0db3b70a607bf592c88d038d566ad9a31c78713c88a681a15e5b4ee051e3146

Download Submit
\Users\Admin\AppData\Local\directory\Quote.exe

Filesize
1.6MB

MD5
73da95db4e2d451af39f2e3d0d102836

SHA1
9d387a0f9f90686439406f1cc96a0eb3511a88b4

SHA256
f8e8e8ee70d44b81dcb14b4e94163846c315c2d45ecb5a3888fd6db8a2e20714

SHA512
a83f9aad5aa9b853b3674d628de1aab7d714191627c64779243954e5643c1f1565fdf4943e4ed3bed1f85046cf1b8eb86c3d0e5db3d4e81397db24f8076a7f57

Download Submit
memory/388-2-0x0000000003E80000-0x0000000004280000-memory.dmp

Filesize
4.0MB

Download
memory/684-12-0x00000000038A0000-0x0000000003CA0000-memory.dmp

Filesize
4.0MB

Download
memory/2452-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2452-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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