remcos | 3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1

General

Target

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
Size

1.1MB
MD5

8dec3e4013cf6502f5a8a47b74f2338f
SHA1

1239981acfea06a72aff099f30304f24c7f572de
SHA256

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1
SHA512

05230b69295a8828a9ccc9720ea5a24c6599d0d29fcde27368cf34efec7e7d28be1bd132fd00c92b78439cc0a50066ef8f42d106b7794ec0597e60e4c247ffaa
SSDEEP

24576:u1CC4aPMrdfl4Ciephkv/9pZCrI8UvzWdj2l59EU6h1NhMue8u:FCpMrdfiCiIyVpZok39MRMP8

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.220.30:8080

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-SF7E52
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
2736	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe

description	pid	Process	procid_target
PID 2980 set thread context of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.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

Processes:

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exepowershell.exe3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exepowershell.exe

pid	Process
2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
2736	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
Token: SeDebugPrivilege	2736	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe

description	pid	Process	procid_target
PID 2980 wrote to memory of 2736	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	31
PID 2980 wrote to memory of 2736	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	31
PID 2980 wrote to memory of 2736	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	31
PID 2980 wrote to memory of 2736	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	31
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33
PID 2980 wrote to memory of 592	2980	3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe	33

C:\Users\Admin\AppData\Local\Temp\3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
"C:\Users\Admin\AppData\Local\Temp\3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2980
- 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\3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe
  "C:\Users\Admin\AppData\Local\Temp\3891a0ae29a94c4c2be6091b1f16f54bdcc3ccd03c6d0582eea1ce1864b562e1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:592

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/592-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/592-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/592-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2980-33-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-1-0x0000000000E70000-0x0000000000F9A000-memory.dmp

Filesize
1.2MB

Download
memory/2980-3-0x00000000008B0000-0x00000000008CC000-memory.dmp

Filesize
112KB

Download
memory/2980-6-0x0000000004FA0000-0x0000000005064000-memory.dmp

Filesize
784KB

Download
memory/2980-5-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download
memory/2980-4-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2980-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

Filesize
4KB

Download
memory/2980-2-0x0000000074A30000-0x000000007511E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads