remcos | 65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884

Analysis

max time kernel
119s
max time network
118s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 00:31

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General

Target

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
Size

969KB
MD5

4f087cb99c652923ae7a73c899d57b20
SHA1

246ba498d03bd0a00b48d467242745bf0944f27e
SHA256

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884
SHA512

7b5e766c33388f92c3d3beeacbe28348d96f95858dd468105e3c23aea9abce64de85e4b49aa65706b6a232b87fce4094f9ec2e0c5132e9de9df342393cbef4c2
SSDEEP

24576:2TKj8QMHRGRkdVU5hgJGoYzdYzUKbrYVSEv3g2QutJCjKxe6dVJ0gA:sKj8QMYKdSyJG15YPOpJyKxe6dVJ0

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

137.74.188.193:7789

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-0EXUE5
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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

Processes:

powershell.exe

pid	Process
3640	powershell.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

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe

description	pid	Process	procid_target
PID 2612 set thread context of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93

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

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exepowershell.exeschtasks.exe65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.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	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.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

Processes:

schtasks.exe

pid	Process
4936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exepowershell.exe

pid	Process
2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
3640	powershell.exe
2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
3640	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
Token: SeDebugPrivilege	3640	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe

description	pid	Process	procid_target
PID 2612 wrote to memory of 3640	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	89
PID 2612 wrote to memory of 3640	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	89
PID 2612 wrote to memory of 3640	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	89
PID 2612 wrote to memory of 4936	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	91
PID 2612 wrote to memory of 4936	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	91
PID 2612 wrote to memory of 4936	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	91
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93
PID 2612 wrote to memory of 2028	2612	65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe	93

C:\Users\Admin\AppData\Local\Temp\65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
"C:\Users\Admin\AppData\Local\Temp\65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vChEpuDZrHa.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3640
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vChEpuDZrHa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBB70.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4936
- C:\Users\Admin\AppData\Local\Temp\65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe
  "C:\Users\Admin\AppData\Local\Temp\65c7bcd5ea512d91fdcbc3f6cad89bc0bb67daf010f4be21f429a866978bd884N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2028

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

Query Registry

T1012

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\__PSScriptPolicyTest_rxwgfbm5.kv0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBB70.tmp

Filesize
1KB

MD5
65e89791550cdd73e2e6def7f25c3a32

SHA1
c69ca7db78eea24b08a7533604b60ad38b0584ce

SHA256
fca1a5814e778b9e352714a4ea213fa3d9ba540105c9d25835bc97410758197a

SHA512
9ac279f47f9382aa528a660234424a32cd7558fefcb93f314b2acb758d50b6b4b4e7282dae8e4a232f17764cf07edc97928359984121662ef0f640225ac5b5c3

Download Submit
memory/2028-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2028-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2612-2-0x00000000050F0000-0x0000000005694000-memory.dmp

Filesize
5.6MB

Download
memory/2612-10-0x000000000A1D0000-0x000000000A26C000-memory.dmp

Filesize
624KB

Download
memory/2612-9-0x0000000007980000-0x0000000007A40000-memory.dmp

Filesize
768KB

Download
memory/2612-8-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2612-7-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

Filesize
4KB

Download
memory/2612-6-0x0000000007930000-0x0000000007948000-memory.dmp

Filesize
96KB

Download
memory/2612-5-0x0000000004DC0000-0x0000000004DCA000-memory.dmp

Filesize
40KB

Download
memory/2612-4-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2612-3-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download
memory/2612-42-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/2612-1-0x0000000000120000-0x0000000000218000-memory.dmp

Filesize
992KB

Download
memory/2612-0-0x0000000074BBE000-0x0000000074BBF000-memory.dmp

Filesize
4KB

Download
memory/3640-21-0x0000000005D10000-0x0000000005D76000-memory.dmp

Filesize
408KB

Download
memory/3640-43-0x0000000006960000-0x00000000069AC000-memory.dmp

Filesize
304KB

Download
memory/3640-44-0x0000000006BA0000-0x0000000006BD2000-memory.dmp

Filesize
200KB

Download
memory/3640-45-0x000000006F550000-0x000000006F59C000-memory.dmp

Filesize
304KB

Download
memory/3640-55-0x0000000006BE0000-0x0000000006BFE000-memory.dmp

Filesize
120KB

Download
memory/3640-56-0x00000000077F0000-0x0000000007893000-memory.dmp

Filesize
652KB

Download
memory/3640-57-0x0000000007F40000-0x00000000085BA000-memory.dmp

Filesize
6.5MB

Download
memory/3640-58-0x00000000078F0000-0x000000000790A000-memory.dmp

Filesize
104KB

Download
memory/3640-59-0x0000000007970000-0x000000000797A000-memory.dmp

Filesize
40KB

Download
memory/3640-60-0x0000000007B70000-0x0000000007C06000-memory.dmp

Filesize
600KB

Download
memory/3640-61-0x0000000007AF0000-0x0000000007B01000-memory.dmp

Filesize
68KB

Download
memory/3640-62-0x0000000007C60000-0x0000000007C6E000-memory.dmp

Filesize
56KB

Download
memory/3640-63-0x0000000007C70000-0x0000000007C84000-memory.dmp

Filesize
80KB

Download
memory/3640-64-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

Filesize
104KB

Download
memory/3640-65-0x0000000007CB0000-0x0000000007CB8000-memory.dmp

Filesize
32KB

Download
memory/3640-68-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/3640-41-0x00000000065D0000-0x00000000065EE000-memory.dmp

Filesize
120KB

Download
memory/3640-20-0x0000000005620000-0x0000000005642000-memory.dmp

Filesize
136KB

Download
memory/3640-36-0x0000000005F70000-0x00000000062C4000-memory.dmp

Filesize
3.3MB

Download
memory/3640-22-0x0000000005D80000-0x0000000005DE6000-memory.dmp

Filesize
408KB

Download
memory/3640-23-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/3640-18-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/3640-17-0x0000000005670000-0x0000000005C98000-memory.dmp

Filesize
6.2MB

Download
memory/3640-16-0x0000000074BB0000-0x0000000075360000-memory.dmp

Filesize
7.7MB

Download
memory/3640-15-0x0000000004FF0000-0x0000000005026000-memory.dmp

Filesize
216KB

Download