remcos | ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4

Analysis

max time kernel
59s
max time network
65s
platform
windows10-2004_x64
resource
win10v2004-20250313-en
resource tags

arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2025, 20:33

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General

Target

ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
Size

1.3MB
MD5

4e0ec96668dcaa14ef6f7d2b8d50ff3a
SHA1

2e8babe9b77599549bcbecf8ddde4d0062a48be0
SHA256

ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4
SHA512

cc186584ee9f4339a22428e23040ae0bca1c6c70825dfbe69181defbd3fb7f6901bb0f52b5f83ccbfbf7b4e2464780e6f07132a8dd4ec8c7918100831e1a5766
SSDEEP

24576:Iu6J33O0c+JY5UZ+XC0kGso6Faqo42wBy/1F3J6oBG9vEZTMThJF1/hWY:iu0c++OCvkGs9Faqo42eyjooBtTyhJMY

Score

10^/10

remcos obi discovery rat

Malware Config

Extracted

Family

remcos

Botnet

OBI

swertyhgvcfrdewsquiplkjmnb.ydns.eu:25521

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
chrome
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
chrome-KQ1VAF
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
Remcos family
remcos

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3720	subbasaltic.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1236-6-0x0000000001480000-0x0000000001880000-memory.dmp	autoit_exe
behavioral2/files/0x00080000000242b3-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3720 set thread context of 4832	3720	subbasaltic.exe	92

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	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	subbasaltic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3720	subbasaltic.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
3720	subbasaltic.exe
3720	subbasaltic.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
3720	subbasaltic.exe
3720	subbasaltic.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 3720	1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	89
PID 1236 wrote to memory of 3720	1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	89
PID 1236 wrote to memory of 3720	1236	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	89
PID 3720 wrote to memory of 4832	3720	subbasaltic.exe	92
PID 3720 wrote to memory of 4832	3720	subbasaltic.exe	92
PID 3720 wrote to memory of 4832	3720	subbasaltic.exe	92
PID 3720 wrote to memory of 4832	3720	subbasaltic.exe	92

C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
"C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\emboweling\subbasaltic.exe
  "C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.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:3720
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4832

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\Temp\teer

Filesize
487KB

MD5
90c26e903bb6569a42d06120ca0d196b

SHA1
4fa3fee6dfdb49d7b4b77eb6b3a57ff49b3e92b3

SHA256
e0bf8bb962836cee5e885e853e1ccb032d823d08c1ee7500d1074ddb220f56c6

SHA512
2ba04158283ff26cd392313d5e57987792ef719a8dcfd90fefb3ffd80b17566cde3b48c2e94b349c7846b047c64f54407013e01843ce4a2000fbc30357aa7924

Download Submit
C:\Users\Admin\AppData\Local\emboweling\subbasaltic.exe

Filesize
1.3MB

MD5
4e0ec96668dcaa14ef6f7d2b8d50ff3a

SHA1
2e8babe9b77599549bcbecf8ddde4d0062a48be0

SHA256
ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4

SHA512
cc186584ee9f4339a22428e23040ae0bca1c6c70825dfbe69181defbd3fb7f6901bb0f52b5f83ccbfbf7b4e2464780e6f07132a8dd4ec8c7918100831e1a5766

Download Submit
memory/1236-6-0x0000000001480000-0x0000000001880000-memory.dmp

Filesize
4.0MB

Download
memory/3720-18-0x00000000019D0000-0x0000000001DD0000-memory.dmp

Filesize
4.0MB

Download
memory/4832-36-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-20-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-22-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-23-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-24-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-25-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-26-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-27-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-28-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-29-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-30-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-31-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-32-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-33-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-34-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-35-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-39-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-37-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-21-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-38-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-43-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-41-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-42-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-40-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-44-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-45-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-46-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-47-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-48-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-49-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-50-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-51-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-52-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-53-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-54-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-55-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-56-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-57-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4832-58-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download