remcos | 048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 11:56

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General

Target

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe
Size

611KB
MD5

adadd8d7b9f56f37327bb3bfaaf1c439
SHA1

674ffec1bc5e521db5b5bde7d51840206face781
SHA256

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a
SHA512

427ade13a417bbdfe037186b7ff3c1313f528eaf61e404e19397a7208e550f4fde251195da1c8baf5e3f7b3f3bd104b11cc0fd66103e516b3d4b2025d1f7aedf
SSDEEP

12288:Ziko634q/iDUSwFDWwsP17tSpgo9QqkcFUcxiMPfspxT:E634q/iDBwFDWxN7tSJpfEMy

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

162.251.122.76:7119

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-P2SX34
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
Remcos family
remcos
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

description pid process target process

PID 2844 created 3500 2844 048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe Explorer.EXE

description	pid	process	target process
PID 2844 created 3500	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	Explorer.EXE

Drops startup file 1 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DiscretionaryAcl.vbs	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

description	pid	process	target process
PID 2844 set thread context of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe

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

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

pid process

2844 048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

pid	process
2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

description	pid	process
Token: SeDebugPrivilege	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe
Token: SeDebugPrivilege	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe

description	pid	process	target process
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe
PID 2844 wrote to memory of 3360	2844	048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3500
- C:\Users\Admin\AppData\Local\Temp\048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe
  "C:\Users\Admin\AppData\Local\Temp\048e6aff03b371ab067540869adbc37bf5b6c8602b75e070e8b821a7a21dda6a.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2844
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3360

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

memory/2844-0-0x00000000752DE000-0x00000000752DF000-memory.dmp

Filesize
4KB

Download
memory/2844-1-0x0000000000A50000-0x0000000000AEE000-memory.dmp

Filesize
632KB

Download
memory/2844-2-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-3-0x00000000752DE000-0x00000000752DF000-memory.dmp

Filesize
4KB

Download
memory/2844-4-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-5-0x0000000006480000-0x00000000065A4000-memory.dmp

Filesize
1.1MB

Download
memory/2844-13-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-25-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-63-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-69-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-67-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-65-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-61-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-59-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-57-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-55-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-53-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-51-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-49-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-47-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-43-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-41-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-39-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-37-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-35-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-33-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-31-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-29-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-23-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-21-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-19-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-17-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-15-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-11-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-45-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-9-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-7-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-27-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-6-0x0000000006480000-0x000000000659E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-1080-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-1081-0x0000000006930000-0x00000000069C6000-memory.dmp

Filesize
600KB

Download
memory/2844-1082-0x00000000069D0000-0x0000000006A1C000-memory.dmp

Filesize
304KB

Download
memory/2844-1085-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-1087-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-1088-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-1089-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/2844-1090-0x00000000072E0000-0x0000000007884000-memory.dmp

Filesize
5.6MB

Download
memory/2844-1091-0x0000000001150000-0x00000000011A4000-memory.dmp

Filesize
336KB

Download
memory/2844-1100-0x00000000752D0000-0x0000000075A80000-memory.dmp

Filesize
7.7MB

Download
memory/3360-1099-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3360-1106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download