remcos | 1a6f2e5d65e1996aa473c9ca5a5ac7bb9575a5d22afb45717f971e6bf04817ed

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 11:40

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General

Target

OverdriveNTool_0.2.9/OverdriveNTool.exe
Size

2.9MB
MD5

b64dbdbb60d0edab5bf3608d9973d7b5
SHA1

470ec316274648567965ac7912cb8fbfc5763c47
SHA256

731f26f74722af06e463904102705bc856f20852faecb08b5fda6b7bc0e5539c
SHA512

2d21e148db3e5a60075609ca0b4e5cabba7bf15299ed49ebe81f73844440090f8d935e919e2e7368927890b4d51514518bf9467ab01a1db0a3bbae50153719a9
SSDEEP

49152:gLJwSihjOb6GLb4SKEs3DyOMC2DlUt0+yO3A32ASNTvM0:cwSi0b67zeCzt0+yO3kSf

Score

10^/10

remcos ��discovery rat

Malware Config

Extracted

Family

remcos

Version

2.6.0 Pro

Botnet

��

37.1.206.16:5757

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Windows.exe
copy_folder
Temp
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
13asdadsSDSSDSDSD12132az-BMS9FK
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Defender
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
Remcos family
remcos

Blocklisted process makes network request 20 IoCs

flow	pid	Process
41	4540	cmd.exe
42	4540	cmd.exe
45	4540	cmd.exe
47	4540	cmd.exe
48	4540	cmd.exe
49	4540	cmd.exe
50	4540	cmd.exe
51	4540	cmd.exe
53	4540	cmd.exe
57	4540	cmd.exe
58	4540	cmd.exe
59	4540	cmd.exe
60	4540	cmd.exe
61	4540	cmd.exe
62	4540	cmd.exe
63	4540	cmd.exe
64	4540	cmd.exe
65	4540	cmd.exe
66	4540	cmd.exe
67	4540	cmd.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	OverdriveNTool.exe

Executes dropped EXE 2 IoCs

pid	Process
4744	OverdriveNTool9.exe
4544	OnePlus.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\OverdriveNTool\OverdriveNTool9.exe	OverdriveNTool.exe
File opened for modification	C:\Program Files (x86)\OverdriveNTool\OnePlus.exe	OverdriveNTool.exe
File created	C:\Program Files (x86)\OverdriveNTool\is-N6UDU.tmp	OverdriveNTool.exe
File created	C:\Program Files (x86)\OverdriveNTool\is-R9SSL.tmp	OverdriveNTool.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\ctmon.job	cmd.exe

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 6 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	OverdriveNTool.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OverdriveNTool9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OnePlus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OverdriveNTool.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1516	OverdriveNTool.exe
1516	OverdriveNTool.exe
4544	OnePlus.exe
2220	notepad.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2220	notepad.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1516	OverdriveNTool.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1516	1628	OverdriveNTool.exe	85
PID 1628 wrote to memory of 1516	1628	OverdriveNTool.exe	85
PID 1628 wrote to memory of 1516	1628	OverdriveNTool.exe	85
PID 1516 wrote to memory of 4744	1516	OverdriveNTool.exe	86
PID 1516 wrote to memory of 4744	1516	OverdriveNTool.exe	86
PID 1516 wrote to memory of 4744	1516	OverdriveNTool.exe	86
PID 1516 wrote to memory of 4544	1516	OverdriveNTool.exe	87
PID 1516 wrote to memory of 4544	1516	OverdriveNTool.exe	87
PID 1516 wrote to memory of 4544	1516	OverdriveNTool.exe	87
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89
PID 4544 wrote to memory of 2220	4544	OnePlus.exe	89

C:\Users\Admin\AppData\Local\Temp\OverdriveNTool_0.2.9\OverdriveNTool.exe
"C:\Users\Admin\AppData\Local\Temp\OverdriveNTool_0.2.9\OverdriveNTool.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Users\Admin\AppData\Local\Temp\OverdriveNTool_0.2.9\OverdriveNTool.exe
  "C:\Users\Admin\AppData\Local\Temp\OverdriveNTool_0.2.9\OverdriveNTool.exe" /VERYSILENT
  2⤵
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1516
- - C:\Program Files (x86)\OverdriveNTool\OverdriveNTool9.exe
    "C:\Program Files (x86)\OverdriveNTool\OverdriveNTool9.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4744
- - C:\Program Files (x86)\OverdriveNTool\OnePlus.exe
    "C:\Program Files (x86)\OverdriveNTool\OnePlus.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4544
  - - C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      PID:2220
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe"
        5⤵
        Blocklisted process makes network request
        Drops file in Windows directory
        System Location Discovery: System Language Discovery
        
        PID:4540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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:\Program Files (x86)\OverdriveNTool\OnePlus.exe

Filesize
3.3MB

MD5
11c4fee0fa8ca33059d0e54e2f968447

SHA1
206fc648bfd44ed2a0647665088a7cd240ca2e6f

SHA256
67991e6c3dc3ca7eaaa628f3d1349e59d5dcfba88c05c23188fa22ce7f637c5d

SHA512
dd61f1de81efb8ae3610d3a95836542c3eec86c7573880ff6790545134a93122457d5eca06cc5586ac70196a5bf8a761c6ad4d1474f2b63b71313d0c1b2f64ca

Download Submit
C:\Program Files (x86)\OverdriveNTool\OverdriveNTool9.exe

Filesize
3.3MB

MD5
9d0b0d3ce4b1479ee0ad3ab659691dc9

SHA1
2a7d5add5ade9dbc7b03ab6e28b9085d14579c2e

SHA256
0856dd07f6efa48729888ba519e2a3fd4eaa37de3463eb7bc838e45d2b5790e6

SHA512
d69235d2e426f4e82337110a3795833e94ef362ffa27c10fd1a4febbc0422038c7d29064da064d565f59532a9a22c6487dc3be595753ea7bd920214cc4f591b9

Download Submit
memory/1516-4-0x0000000000D60000-0x0000000000D61000-memory.dmp

Filesize
4KB

Download
memory/1516-17-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/1628-0-0x0000000002700000-0x0000000002701000-memory.dmp

Filesize
4KB

Download
memory/1628-5-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2220-22-0x0000000016790000-0x00000000171B2000-memory.dmp

Filesize
10.1MB

Download
memory/4540-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4540-30-0x0000000000AB0000-0x0000000000AB8000-memory.dmp

Filesize
32KB

Download
memory/4540-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4544-19-0x0000000000400000-0x0000000000764000-memory.dmp

Filesize
3.4MB

Download
memory/4744-18-0x0000000000400000-0x0000000000761000-memory.dmp

Filesize
3.4MB

Download