remcos | b8f7a9a7cc45c8a200c6f2a62f545bac04c8b6ad032c3042b0686307578c3f58

Resubmissions

03/04/2025, 13:32

250403-qs92maxtbt 10

03/04/2025, 13:28

250403-qq6anazky2 10

Analysis

max time kernel
150s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
03/04/2025, 13:28

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General

Target

Stamped Purchase Order Against Payment.exe
Size

1.2MB
MD5

942c4a30d66950e6b559594639b01811
SHA1

d7f5281bab0aeec1c1abd18e8b67ee8642100168
SHA256

b8f7a9a7cc45c8a200c6f2a62f545bac04c8b6ad032c3042b0686307578c3f58
SHA512

4341d118bd5a76c5fb95b3dc13e9e4649825cd3ddc2e73cb6602fa22d55f2e049b7b8db53c78e25218412f9d6027a813f56dae94d54b0c3057f43ab5815c9a0d
SSDEEP

24576:tu6J33O0c+JY5UZ+XC0kGso6FahskQd8GpnruryULDSYWY:fu0c++OCvkGs9FahanNY

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:51010

196.251.92.49:51010

oni17.duckdns.org:51010

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-XLVXMK
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

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2564	iodite.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000023f42-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2564 set thread context of 920	2564	iodite.exe	90

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	Stamped Purchase Order Against Payment.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iodite.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2564	iodite.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2800	Stamped Purchase Order Against Payment.exe
2800	Stamped Purchase Order Against Payment.exe
2564	iodite.exe
2564	iodite.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2800	Stamped Purchase Order Against Payment.exe
2800	Stamped Purchase Order Against Payment.exe
2564	iodite.exe
2564	iodite.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2564	2800	Stamped Purchase Order Against Payment.exe	89
PID 2800 wrote to memory of 2564	2800	Stamped Purchase Order Against Payment.exe	89
PID 2800 wrote to memory of 2564	2800	Stamped Purchase Order Against Payment.exe	89
PID 2564 wrote to memory of 920	2564	iodite.exe	90
PID 2564 wrote to memory of 920	2564	iodite.exe	90
PID 2564 wrote to memory of 920	2564	iodite.exe	90
PID 2564 wrote to memory of 920	2564	iodite.exe	90

C:\Users\Admin\AppData\Local\Temp\Stamped Purchase Order Against Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Stamped Purchase Order Against Payment.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\ophiolatrous\iodite.exe
  "C:\Users\Admin\AppData\Local\Temp\Stamped Purchase Order Against Payment.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Stamped Purchase Order Against Payment.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ophiolatrous\iodite.exe

Filesize
1.2MB

MD5
942c4a30d66950e6b559594639b01811

SHA1
d7f5281bab0aeec1c1abd18e8b67ee8642100168

SHA256
b8f7a9a7cc45c8a200c6f2a62f545bac04c8b6ad032c3042b0686307578c3f58

SHA512
4341d118bd5a76c5fb95b3dc13e9e4649825cd3ddc2e73cb6602fa22d55f2e049b7b8db53c78e25218412f9d6027a813f56dae94d54b0c3057f43ab5815c9a0d

Download Submit
memory/920-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/920-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-18-0x0000000001830000-0x0000000001C30000-memory.dmp

Filesize
4.0MB

Download
memory/2800-6-0x0000000001070000-0x0000000001470000-memory.dmp

Filesize
4.0MB

Download