remcos | 75923a3d9662a5d5db57fcbba73e1dd2a65d4f8c355f486d615153c01163576c

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 10:12

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General

Target

statement.exe
Size

842KB
MD5

b85dd2b6ed6d1b2d5c343deab844f5d8
SHA1

8bdc094c9afae6511cf4251b3064413882b011d0
SHA256

f18bf944f9365beda201e63d97f1b93139994d9cef424f855d691cf797c33d0f
SHA512

d544732815bc7864b8c8d65fa1c21e3fbf12a4085c0412943bea40bb8daec4c6665c188aec730509d0c8cdce2239afbaa792b7aee9bbd384eb521cea3d84585e
SSDEEP

12288:IDRRHYiOcfOkfB+4m6oETlk07wtx7EtDJEIgIJHIE3YlPujsyuqt:IFaiOc5D9oE60MEtDJEIgIJHIEyyuqt

Score

10^/10

remcos aug discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.0 Pro

Botnet

Aug

salespaul.hopto.org:24005

salespaul.ddns.net:24005

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-0ZVAAM
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
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2180 set thread context of 2752	2180	statement.exe	30
PID 2872 set thread context of 2600	2872	statement.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 4 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	statement.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	statement.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe
2872	statement.exe
2180	statement.exe
2180	statement.exe
2872	statement.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2180	statement.exe
2872	statement.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2180	statement.exe
Token: SeDebugPrivilege	2872	statement.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	RegAsm.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2752	2180	statement.exe	30
PID 2180 wrote to memory of 2872	2180	statement.exe	31
PID 2180 wrote to memory of 2872	2180	statement.exe	31
PID 2180 wrote to memory of 2872	2180	statement.exe	31
PID 2180 wrote to memory of 2872	2180	statement.exe	31
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32
PID 2872 wrote to memory of 2600	2872	statement.exe	32

C:\Users\Admin\AppData\Local\Temp\statement.exe
"C:\Users\Admin\AppData\Local\Temp\statement.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\statement.exe
  "C:\Users\Admin\AppData\Local\Temp\statement.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2872
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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\Roaming\remcos\logs.dat

Filesize
74B

MD5
7e2c40eeece223ed2837c1ac98d1c974

SHA1
127833ab7def304c48f38ba0946f8bc220bb4cd8

SHA256
e80b2f6d0fa9121f7e907421abf9b2b6ba0de548aab3ae61eb335088b885c725

SHA512
1a93f7308169cc5388cb4de619437ff46a37079b0cb2df927e6a15598d1945bbd8c9bde2df68dd6b892b1913371a5bc4e0ec9e82b01c04c9579cc8c4a039675c

Download Submit
memory/2180-19-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

Filesize
4KB

Download
memory/2180-1-0x00000000003C0000-0x0000000000498000-memory.dmp

Filesize
864KB

Download
memory/2180-2-0x0000000074BB0000-0x000000007529E000-memory.dmp

Filesize
6.9MB

Download
memory/2180-3-0x00000000021D0000-0x00000000021FE000-memory.dmp

Filesize
184KB

Download
memory/2180-7-0x0000000074BB0000-0x000000007529E000-memory.dmp

Filesize
6.9MB

Download
memory/2180-0-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

Filesize
4KB

Download
memory/2180-22-0x0000000074BB0000-0x000000007529E000-memory.dmp

Filesize
6.9MB

Download
memory/2180-20-0x0000000074BB0000-0x000000007529E000-memory.dmp

Filesize
6.9MB

Download
memory/2752-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download