remcos | ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4

Analysis

max time kernel
60s
max time network
66s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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
1860	subbasaltic.exe

Loads dropped DLL 1 IoCs

pid	Process
2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000700000001756b-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1860 set thread context of 2992	1860	subbasaltic.exe	30

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

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1860	subbasaltic.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
1860	subbasaltic.exe
1860	subbasaltic.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
1860	subbasaltic.exe
1860	subbasaltic.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 1860	2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	29
PID 2424 wrote to memory of 1860	2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	29
PID 2424 wrote to memory of 1860	2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	29
PID 2424 wrote to memory of 1860	2424	ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe	29
PID 1860 wrote to memory of 2992	1860	subbasaltic.exe	30
PID 1860 wrote to memory of 2992	1860	subbasaltic.exe	30
PID 1860 wrote to memory of 2992	1860	subbasaltic.exe	30
PID 1860 wrote to memory of 2992	1860	subbasaltic.exe	30
PID 1860 wrote to memory of 2992	1860	subbasaltic.exe	30

C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe
"C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2424
- 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:1860
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2992

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

\Users\Admin\AppData\Local\emboweling\subbasaltic.exe

Filesize
1.3MB

MD5
4e0ec96668dcaa14ef6f7d2b8d50ff3a

SHA1
2e8babe9b77599549bcbecf8ddde4d0062a48be0

SHA256
ce2fbb9b7200bc539e8f206f3a04426a72b88deeb1ea36d73ce896bdd1b342a4

SHA512
cc186584ee9f4339a22428e23040ae0bca1c6c70825dfbe69181defbd3fb7f6901bb0f52b5f83ccbfbf7b4e2464780e6f07132a8dd4ec8c7918100831e1a5766

Download Submit
memory/1860-20-0x0000000000750000-0x0000000000B50000-memory.dmp

Filesize
4.0MB

Download
memory/2424-6-0x0000000000A30000-0x0000000000E30000-memory.dmp

Filesize
4.0MB

Download
memory/2992-22-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-24-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-25-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-26-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-27-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-28-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-29-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-30-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-31-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-32-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-33-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-34-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-35-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-36-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-37-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-38-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-39-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-40-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-41-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-42-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-43-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-44-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-45-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-46-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-47-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-48-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-49-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-50-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-51-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-52-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-53-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-54-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-55-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-56-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-57-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-58-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-59-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-60-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-61-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-62-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-63-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-64-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-65-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-66-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-67-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-68-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-69-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-70-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-71-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/2992-72-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download