remcos | 19e7b739eba1a54c80cce176686c206930a28579ab57f4281ad97ebdcd31d46c

Analysis

max time kernel
299s
max time network
298s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 10:48

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General

Target

Product Sample Requirement.pdf.exe
Size

1.4MB
MD5

d9181ebff81afb31a951e560774e6bdf
SHA1

61587f2a1b7d29f2b6f52abae75277835e0f0708
SHA256

e6314cf3560f9fd60a07d99de549c09775e9fbf149feaf7e1a347298e261bf51
SHA512

4911bf45fb680be5067404e067f17e694c0a1243e0e7e5e1750a34c9beb9786a63023ebbfd674713c82547d8bd9d06d1bc12c3729dd1bb9fb8722a6d2a0f8341
SSDEEP

24576:ffyQHkppveO371GK6fHze8IBf1alIYk7BRa866Rt98:ffW3vemn6AfwlIYk7BRaR6t98

Score

10^/10

remcos wire2 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

wire2

87.121.86.8:2195

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-V4679R
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

description	pid	Process	procid_target
PID 1008 created 3436	1008	Product Sample Requirement.pdf.exe	56

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Handle.vbs	Product Sample Requirement.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1008 set thread context of 4556	1008	Product Sample Requirement.pdf.exe	83

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	Product Sample Requirement.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1008	Product Sample Requirement.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1008	Product Sample Requirement.pdf.exe
Token: SeDebugPrivilege	1008	Product Sample Requirement.pdf.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83
PID 1008 wrote to memory of 4556	1008	Product Sample Requirement.pdf.exe	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3436
- C:\Users\Admin\AppData\Local\Temp\Product Sample Requirement.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Product Sample Requirement.pdf.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:1008
- 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:4556

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/1008-0-0x00000000748DE000-0x00000000748DF000-memory.dmp

Filesize
4KB

Download
memory/1008-1-0x00000000007D0000-0x0000000000932000-memory.dmp

Filesize
1.4MB

Download
memory/1008-2-0x00000000057C0000-0x0000000005D64000-memory.dmp

Filesize
5.6MB

Download
memory/1008-3-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/1008-4-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1008-5-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/1008-6-0x00000000054B0000-0x00000000055D6000-memory.dmp

Filesize
1.1MB

Download
memory/1008-16-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-30-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-54-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-70-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-68-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-66-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-64-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-62-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-60-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-58-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-56-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-52-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-50-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-48-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-46-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-44-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-42-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-40-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-38-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-36-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-34-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-28-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-26-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-24-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-22-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-20-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-18-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-14-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-12-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-8-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-32-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-10-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-7-0x00000000054B0000-0x00000000055D0000-memory.dmp

Filesize
1.1MB

Download
memory/1008-1183-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1008-1184-0x0000000005DE0000-0x0000000005E76000-memory.dmp

Filesize
600KB

Download
memory/1008-1185-0x0000000005D70000-0x0000000005DBC000-memory.dmp

Filesize
304KB

Download
memory/1008-1186-0x0000000005E80000-0x0000000005ED4000-memory.dmp

Filesize
336KB

Download
memory/1008-1193-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1008-1194-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1008-1199-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/1008-1202-0x0000000002E59000-0x0000000002E5A000-memory.dmp

Filesize
4KB

Download
memory/1008-1200-0x00000000748D0000-0x0000000075080000-memory.dmp

Filesize
7.7MB

Download
memory/4556-1201-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4556-1204-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download