remcos | d18efb4f76fa7ce45b90e39c8a6e462b994a73442d032f928f7e7f71c52c462a

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 14:16

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General

Target

Payment Invoice.exe
Size

1.4MB
MD5

fb5cf278997f641da07612e0e6997171
SHA1

a76de72f1bfd3a91d12ae5a78ff5254a44233dd3
SHA256

5470ede6c108f4bd93c9b86548513661f033a3d71f4a644c6600007d9de81782
SHA512

1b2de413b34d409de7162ae8e2adb59bc41c8ead7ba0debdef47e33110578f40ec48870255ac745fb118c4489fa34bc69a11fb629588c8d983f77be26da25cc1
SSDEEP

24576:sqDEvCTbMWu7rQYlBQcBiT6rprG8aLn7Qx8p2WUQ/ItNEmlx/co:sTvC/MTQYxsWR7aL7dpZ/2Emlx/c

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

23.95.235.18:2557

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-E0JKXE
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

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	Payment Invoice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment Invoice.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3588	Payment Invoice.exe
3588	Payment Invoice.exe
4188	Payment Invoice.exe
4188	Payment Invoice.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3588	Payment Invoice.exe
3588	Payment Invoice.exe
4188	Payment Invoice.exe
4188	Payment Invoice.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 4188	3588	Payment Invoice.exe	87
PID 3588 wrote to memory of 4188	3588	Payment Invoice.exe	87
PID 3588 wrote to memory of 4188	3588	Payment Invoice.exe	87

C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3588
- C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Invoice.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4188

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\bankrupture

Filesize
483KB

MD5
fee9704efbc861c397168748097d13bd

SHA1
4baa516bd1c06607f818764059422b7748a12f2a

SHA256
74acd0a748b020706c95a6e76ba5b191981e149df74450672cb49593056d9005

SHA512
ee3bd0585a0dae73658a50d58b5f6d65b9ccf3388be84ae1c328758d3fbfd99b5070ab2b7210e63b091288d89b738f53feee6f957bf5892314a78483d3fac9bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\harrowment

Filesize
84KB

MD5
3372043617adbabd5c0d2643be69720a

SHA1
1a5819be73e830fe729cf7ddd5ab4d2452a695fa

SHA256
f2663e7a0e62abb77cfb5efc392a1be84e6d69c9d980d0953d3b44c7638f221a

SHA512
67cd3a4fa9157e696b18abba6ecb1fdd4cd2c088ad9d2135137c74a00f67dfc98d1eadb9ede4bc3ae287e29ac2219c7385488c5335dc0a8efb5ecffdd4078033

Download Submit
memory/3588-11-0x00007FFB6FDD0000-0x00007FFB6FFC5000-memory.dmp

Filesize
2.0MB

Download
memory/4188-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-33-0x00007FFB6FDD0000-0x00007FFB6FFC5000-memory.dmp

Filesize
2.0MB

Download
memory/4188-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-25-0x00007FFB6FDD0000-0x00007FFB6FFC5000-memory.dmp

Filesize
2.0MB

Download
memory/4188-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4188-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download