remcos | 0009bc8a2fe8da5d1544b9685e1628ee13e298e821b80d426998f47c8fa96585

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 13:55

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General

Target

PO6034INV.exe
Size

987KB
MD5

a1a78fc315e61f1397598dfd5c956e66
SHA1

ef2f21dce062e7e4dd39028d035ef5ed48dcdff9
SHA256

0009bc8a2fe8da5d1544b9685e1628ee13e298e821b80d426998f47c8fa96585
SHA512

afd7154b2c7d570bbeeeda5fbaddf3e00c04a6c7bef65cf6068301ce041754ee110e3839b1bcdee0b088fa67af8790fac6a7d759d1932e20df50012824d99240
SSDEEP

12288:pLMC3+OhNsjfNNUHUVyUDuFVdP5fzIhvBXQHvmx7rOYzImcGduwKktnFO6JK1+DH:xOpiSzDuFlrCpgHvmVEmFdXHJ648T

Score

10^/10

remcos zynova discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

zynova

cloudsave.duckdns.org:14645

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-CJ3HJ1
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

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
2404	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	PO6034INV.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2972 set thread context of 4024	2972	PO6034INV.exe	90

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 3 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	PO6034INV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO6034INV.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2972	PO6034INV.exe
2972	PO6034INV.exe
2972	PO6034INV.exe
2972	PO6034INV.exe
2404	powershell.exe
2404	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	PO6034INV.exe
Token: SeDebugPrivilege	2404	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2404	2972	PO6034INV.exe	87
PID 2972 wrote to memory of 2404	2972	PO6034INV.exe	87
PID 2972 wrote to memory of 2404	2972	PO6034INV.exe	87
PID 2972 wrote to memory of 1076	2972	PO6034INV.exe	89
PID 2972 wrote to memory of 1076	2972	PO6034INV.exe	89
PID 2972 wrote to memory of 1076	2972	PO6034INV.exe	89
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90
PID 2972 wrote to memory of 4024	2972	PO6034INV.exe	90

C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe
"C:\Users\Admin\AppData\Local\Temp\PO6034INV.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:2972
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe
  "C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe"
  2⤵
  PID:1076
- C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe
  "C:\Users\Admin\AppData\Local\Temp\PO6034INV.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_k4jssaos.up3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2404-37-0x00000000060D0000-0x00000000060EE000-memory.dmp

Filesize
120KB

Download
memory/2404-60-0x0000000007680000-0x0000000007716000-memory.dmp

Filesize
600KB

Download
memory/2404-36-0x0000000005C10000-0x0000000005F64000-memory.dmp

Filesize
3.3MB

Download
memory/2404-68-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2404-65-0x0000000007720000-0x0000000007728000-memory.dmp

Filesize
32KB

Download
memory/2404-64-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/2404-63-0x0000000007640000-0x0000000007654000-memory.dmp

Filesize
80KB

Download
memory/2404-62-0x0000000007630000-0x000000000763E000-memory.dmp

Filesize
56KB

Download
memory/2404-61-0x0000000007600000-0x0000000007611000-memory.dmp

Filesize
68KB

Download
memory/2404-59-0x0000000007470000-0x000000000747A000-memory.dmp

Filesize
40KB

Download
memory/2404-58-0x0000000007400000-0x000000000741A000-memory.dmp

Filesize
104KB

Download
memory/2404-57-0x0000000007A40000-0x00000000080BA000-memory.dmp

Filesize
6.5MB

Download
memory/2404-54-0x00000000072C0000-0x0000000007363000-memory.dmp

Filesize
652KB

Download
memory/2404-17-0x0000000004B50000-0x0000000004B86000-memory.dmp

Filesize
216KB

Download
memory/2404-19-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

Filesize
4KB

Download
memory/2404-20-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2404-21-0x0000000005290000-0x00000000058B8000-memory.dmp

Filesize
6.2MB

Download
memory/2404-38-0x0000000006120000-0x000000000616C000-memory.dmp

Filesize
304KB

Download
memory/2404-42-0x0000000007250000-0x0000000007282000-memory.dmp

Filesize
200KB

Download
memory/2404-43-0x0000000071720000-0x000000007176C000-memory.dmp

Filesize
304KB

Download
memory/2404-22-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2404-53-0x0000000007290000-0x00000000072AE000-memory.dmp

Filesize
120KB

Download
memory/2404-24-0x0000000005230000-0x0000000005252000-memory.dmp

Filesize
136KB

Download
memory/2404-30-0x0000000005A30000-0x0000000005A96000-memory.dmp

Filesize
408KB

Download
memory/2404-31-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/2972-4-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-9-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-3-0x00000000055A0000-0x0000000005632000-memory.dmp

Filesize
584KB

Download
memory/2972-10-0x00000000081C0000-0x0000000008280000-memory.dmp

Filesize
768KB

Download
memory/2972-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

Filesize
4KB

Download
memory/2972-2-0x0000000005B50000-0x00000000060F4000-memory.dmp

Filesize
5.6MB

Download
memory/2972-1-0x0000000000B90000-0x0000000000C8C000-memory.dmp

Filesize
1008KB

Download
memory/2972-5-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/2972-6-0x0000000005970000-0x0000000005A0C000-memory.dmp

Filesize
624KB

Download
memory/2972-18-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/2972-7-0x0000000006F10000-0x0000000006F2A000-memory.dmp

Filesize
104KB

Download
memory/2972-8-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

Filesize
4KB

Download
memory/4024-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4024-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download