remcos | 7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8

General

Target

7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe
Size

947KB
MD5

b10dbc0225aac52e8ee344602847a3cc
SHA1

4bedc08167e1f21c85593c730e29d10036e0b219
SHA256

7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8
SHA512

579827dda319cbf9edb3d9955f27e68952f4587d73166192a68ff8609032465d892c6f08e4b19454b24c27c4cce6ddb56fce2e7df3121458c4d1f7c78d5e6156
SSDEEP

24576:Pf5eTij5iglZLSD2fhawjyCcT4L3CbY5O+eB:X5CU5PlZLm2fhDcTBbY5O+eB

Score

10^/10

remcos remco discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

Remco

C2

87.120.116.245:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-0PJCBG
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

pid	Process
2580	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.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	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2580	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2580	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2580	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	31
PID 2756 wrote to memory of 2580	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	31
PID 2756 wrote to memory of 2580	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	31
PID 2756 wrote to memory of 2580	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	31
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33
PID 2756 wrote to memory of 2092	2756	7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe	33

C:\Users\Admin\AppData\Local\Temp\7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe
"C:\Users\Admin\AppData\Local\Temp\7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- 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\7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2580
- C:\Users\Admin\AppData\Local\Temp\7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe
  "C:\Users\Admin\AppData\Local\Temp\7a12e9a93cb32e622b05613c160fbbfae2d379f5c255bfca02eb1b54fe1a78a8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2092

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/2092-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2092-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2092-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2756-1-0x0000000001180000-0x0000000001272000-memory.dmp

Filesize
968KB

Download
memory/2756-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2756-29-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-5-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2756-3-0x0000000000C00000-0x0000000000C18000-memory.dmp

Filesize
96KB

Download
memory/2756-8-0x000000000A5B0000-0x000000000A672000-memory.dmp

Filesize
776KB

Download
memory/2756-7-0x0000000000C20000-0x0000000000C36000-memory.dmp

Filesize
88KB

Download
memory/2756-6-0x0000000000B30000-0x0000000000B3E000-memory.dmp

Filesize
56KB

Download
memory/2756-4-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2756-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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