remcos | 70bba6e748b04c937188f113389a3c90bf30806add70222b920886a57b0bdd98

Analysis

max time kernel
139s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:08

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General

Target

124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
Size

1.6MB
MD5

7a804818509c673c8eac615c46c20d43
SHA1

5694b5cbd6a788da95ecd2c7fb0f15b4728ce7a1
SHA256

124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5
SHA512

0eb7923b4f0af584a9d030df3482eefbdddb128517f81840e6d0e364a4889fc7543ef357d810febd15851008317d12ec21397dfba81d3e5fe384137c2a005c2e
SSDEEP

24576:ED39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjo8:Ep7E+QrFUBgq2F

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
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

Executes dropped EXE 2 IoCs

pid	Process
2392	sbietrcl.exe
2664	sbietrcl.exe

Loads dropped DLL 2 IoCs

pid	Process
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2392	sbietrcl.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2392 set thread context of 2664	2392	sbietrcl.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
2392	sbietrcl.exe
2392	sbietrcl.exe
2392	sbietrcl.exe
2392	sbietrcl.exe
2392	sbietrcl.exe
2392	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
Token: SeDebugPrivilege	2392	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2664	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2392	2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	31
PID 2168 wrote to memory of 2392	2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	31
PID 2168 wrote to memory of 2392	2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	31
PID 2168 wrote to memory of 2392	2168	124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe	31
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32
PID 2392 wrote to memory of 2664	2392	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe
"C:\Users\Admin\AppData\Local\Temp\124dba0b2dc9c0fbfca662c90c117b8d64b655ae41744a3ac84f9e4772e722f5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2392
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab1A6.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.6MB

MD5
c10a5b664cb6be0a7b0b0e5a0c1c7d6e

SHA1
77b98199ca0827fb215d50481452a818ab997c03

SHA256
6117d59983ea0392553fc6fa4a67afc66c4ab0c5afde5b2b718600f20c25279e

SHA512
2af86070c9744c3c63119c62c322eacde663483ed13babf95a10ca1af749b366009cd8807541a0b52e5e5b50e153daf2e2d0c85cfe53850a06fa13e37cdc99ba

Download Submit
memory/2168-1-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2168-2-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2168-10-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2168-11-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2168-0-0x00000000749D1000-0x00000000749D2000-memory.dmp

Filesize
4KB

Download
memory/2168-29-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-40-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-64-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-31-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-41-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-30-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2392-32-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2664-68-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download