remcos | ed4750473cade168acd7fb6a70c66fac7b919266d17a6b78d99c693a2a2c758c

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
23-03-2023 05:22

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

5784eba1f14d03fe62efdf8bda0a3dbd.exe
Size

471KB
MD5

5784eba1f14d03fe62efdf8bda0a3dbd
SHA1

fa718fa12c9de367502b6770da28d39e4e732b82
SHA256

ed4750473cade168acd7fb6a70c66fac7b919266d17a6b78d99c693a2a2c758c
SHA512

de106a5144125dc92e5481a3aabe08ee51c8c6ba480bd7ccdca50d567ac3235a221da3c5aeeda62c5df8e51d8693a80c77184330befcc7727bff36128a53069e
SSDEEP

12288:PY/N+6lwMD0IrKl0aehawVhG8hN5HplOMoxm6lMO:PY/NLwNhlTehDgIJlOMo46lMO

Score

10^/10

remcos remotehost rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

88.209.254.28:2404

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
true
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-ZIMT0C
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
Executes dropped EXE 5 IoCs

Processes:

styvvbvfnw.exestyvvbvfnw.exestyvvbvfnw.exestyvvbvfnw.exestyvvbvfnw.exe

pid process

1708 styvvbvfnw.exe
1392 styvvbvfnw.exe
476 styvvbvfnw.exe
572 styvvbvfnw.exe
1192 styvvbvfnw.exe

pid	process
1708	styvvbvfnw.exe
1392	styvvbvfnw.exe
476	styvvbvfnw.exe
572	styvvbvfnw.exe
1192	styvvbvfnw.exe

Loads dropped DLL 6 IoCs

Processes:

5784eba1f14d03fe62efdf8bda0a3dbd.exestyvvbvfnw.exe

pid	process
2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe
2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

styvvbvfnw.exe

description pid process target process

PID 1708 set thread context of 1192 1708 styvvbvfnw.exe styvvbvfnw.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

styvvbvfnw.exe

pid process

1708 styvvbvfnw.exe
1708 styvvbvfnw.exe
1708 styvvbvfnw.exe
1708 styvvbvfnw.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

styvvbvfnw.exe

pid process

1192 styvvbvfnw.exe

description	pid	process	target process
PID 1708 set thread context of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe

pid	process
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe
1708	styvvbvfnw.exe

pid	process
1192	styvvbvfnw.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

5784eba1f14d03fe62efdf8bda0a3dbd.exestyvvbvfnw.exe

description	pid	process	target process
PID 2036 wrote to memory of 1708	2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe	styvvbvfnw.exe
PID 2036 wrote to memory of 1708	2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe	styvvbvfnw.exe
PID 2036 wrote to memory of 1708	2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe	styvvbvfnw.exe
PID 2036 wrote to memory of 1708	2036	5784eba1f14d03fe62efdf8bda0a3dbd.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1392	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1392	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1392	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1392	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 476	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 476	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 476	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 476	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 572	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 572	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 572	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 572	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe
PID 1708 wrote to memory of 1192	1708	styvvbvfnw.exe	styvvbvfnw.exe

C:\Users\Admin\AppData\Local\Temp\5784eba1f14d03fe62efdf8bda0a3dbd.exe
"C:\Users\Admin\AppData\Local\Temp\5784eba1f14d03fe62efdf8bda0a3dbd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe
  "C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe" C:\Users\Admin\AppData\Local\Temp\axqasndr.ufk
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe
    "C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"
    3⤵
    - Executes dropped EXE
    PID:1392
- - C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe
    "C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"
    3⤵
    - Executes dropped EXE
    PID:476
- - C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe
    "C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"
    3⤵
    - Executes dropped EXE
    PID:572
- - C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe
    "C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetWindowsHookEx
    PID:1192

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
570B

MD5
26f288a0135586447df856c2aba803fd

SHA1
284b407b363c6c3e3a0ccdf19347fd6b548d3fba

SHA256
9842c07a38f05689ed2863838e54cf4f60316a262fea1b0801431f5662472d17

SHA512
79dfb73648e84a64cfe906734a88e19476edefcf2cf06ed9cabec6277d7afb7d07de4e099b583fb7f18ec7466609cfae3db33506b6e979fe621e2377317b8346

Download Submit
C:\Users\Admin\AppData\Local\Temp\axqasndr.ufk

Filesize
6KB

MD5
d596498aac5ce1ca97cfcd96ec3ee495

SHA1
09a21830a00e83b1e5805605fc995d95e54c852a

SHA256
ccad30f95fed5a8134cbe5ac04b3610500ced34017f89096e4c85ee58744ec3c

SHA512
af42c33cbd22fdcb97610b91965eddec60e95dd692a5c3fd3caaeef3ef5c10c3fe36e3a10b9691a259541535b796646aa6cd9832a09f22845752f06f14aed441

Download Submit
C:\Users\Admin\AppData\Local\Temp\jioxeb.jo

Filesize
496KB

MD5
7e42aad07741284eed7e0f967c0fd67b

SHA1
914b21ea0fed5f1a88c89a2ebdf05c1af4e16b8c

SHA256
2b554654f813c4dd644bb21dfb93ea39a168943a3f0ac73635883e9b158f5680

SHA512
984833eea934f103fc92dd70d59183f39c37aef0a77bcee911e82e8e2b95e126bd12a26b2eda44c334b61ff4c033d6e62192301933c5d7815d505e384dfc41b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe

Filesize
5KB

MD5
8694eabecd5eb006702df56dd8ca32aa

SHA1
67c5cce9dc8dc4d12f75eba645e15d30ce89dd2e

SHA256
6308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09

SHA512
f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e

Download Submit
memory/1192-82-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-79-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-84-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-83-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-86-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-85-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-87-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-91-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-75-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-80-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-100-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-101-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-106-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-107-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-112-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-114-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-119-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-120-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-125-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1192-126-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download