remcos | ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 15:50

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General

Target

ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
Size

854KB
MD5

a0602bf02ae7766b58bffd108f148b7b
SHA1

65b1ea618e93e70049d395401352fa06c85ffa38
SHA256

ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a
SHA512

27a6ef4322db17ab64acc78b946f14400cda55b1e800d674dd3a47fe89521e227d31f41df00ada3336c82a34bf1b023a2710aa9b4836ea64877c0d866accb00c
SSDEEP

12288:DvUSmi/ScuxtPoeptfKh74Us0kJMxghMDXP4Faaxttoeq8:DXmi/SLxtJnyE0cMxrLEawtKet

Score

10^/10

remcos 8846455 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

8846455

windowsoctarem.duckdns.org:56892

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
4765-HH3V0S
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2156	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35

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	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2156	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2156	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 2516 wrote to memory of 2156	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 2516 wrote to memory of 2156	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 2516 wrote to memory of 2156	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 2516 wrote to memory of 2320	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	32
PID 2516 wrote to memory of 2320	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	32
PID 2516 wrote to memory of 2320	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	32
PID 2516 wrote to memory of 2320	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	32
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 2516 wrote to memory of 2812	2516	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35

C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
"C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YBbcCHHNhNpA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2156
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YBbcCHHNhNpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA75.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2320
- C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
  "C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFA75.tmp

Filesize
1KB

MD5
8190ec58a4ff665cb0995beba852ee69

SHA1
192aa2b54865286db3e3ec2418a73bafd9f38f8d

SHA256
0df291e2013305ca1fccb4b51e5cf7bbaffbf62b9b93a9483efac639a0d5d13f

SHA512
c24aded3ec283a1c93dd770395a40482571dda8c2237fb6525dad6a1a911fa6d2ccd2f00f605e7d4e7172821159ca63cced392db82dc94b95230eb4f760b8e5b

Download Submit
memory/2516-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2516-1-0x0000000000C90000-0x0000000000D6C000-memory.dmp

Filesize
880KB

Download
memory/2516-2-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2516-3-0x0000000000270000-0x0000000000282000-memory.dmp

Filesize
72KB

Download
memory/2516-4-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2516-5-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2516-6-0x00000000053D0000-0x000000000548E000-memory.dmp

Filesize
760KB

Download
memory/2516-34-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2812-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2812-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download