remcos | 0009bc8a2fe8da5d1544b9685e1628ee13e298e821b80d426998f47c8fa96585

General

Target

PO_6034 INV.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

C2

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
2364	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1520 set thread context of 2264	1520	PO_6034 INV.exe	33

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	PO_6034 INV.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO_6034 INV.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1520	PO_6034 INV.exe
1520	PO_6034 INV.exe
2364	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	PO_6034 INV.exe
Token: SeDebugPrivilege	2364	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2364	1520	PO_6034 INV.exe	31
PID 1520 wrote to memory of 2364	1520	PO_6034 INV.exe	31
PID 1520 wrote to memory of 2364	1520	PO_6034 INV.exe	31
PID 1520 wrote to memory of 2364	1520	PO_6034 INV.exe	31
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33
PID 1520 wrote to memory of 2264	1520	PO_6034 INV.exe	33

C:\Users\Admin\AppData\Local\Temp\PO_6034 INV.exe
"C:\Users\Admin\AppData\Local\Temp\PO_6034 INV.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520
- 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\PO_6034 INV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2364
- C:\Users\Admin\AppData\Local\Temp\PO_6034 INV.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_6034 INV.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1520-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/1520-1-0x0000000000B30000-0x0000000000C2C000-memory.dmp

Filesize
1008KB

Download
memory/1520-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1520-3-0x00000000007C0000-0x00000000007DA000-memory.dmp

Filesize
104KB

Download
memory/1520-4-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/1520-5-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1520-6-0x00000000052E0000-0x00000000053A0000-memory.dmp

Filesize
768KB

Download
memory/1520-24-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2264-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2264-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2264-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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