remcos | 8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5

General

Target

8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Size

883KB
MD5

571902de75705d1aeaa32be01459dc65
SHA1

4ccf3c9a339146008c1d8466857e13d3c7752a05
SHA256

8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
SHA512

966381cdeaf8213fefdca876052a59dcda9e2436cfc50b4516eca936ebb9e75b9421058969526fa0b46d06067a43398a51c8e7201fa72d39faa0153c4328a9d7
SSDEEP

24576:kBGzjcJ6NacNEyNOU+6cNuuH2SNcjmYY4Swv:kE86N1l5x8uuWSpYXS2

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2696	powershell.exe
2712	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36

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 5 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	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.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

pid	Process
2844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
2712	powershell.exe
2696	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	2696	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2696	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	30
PID 1680 wrote to memory of 2696	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	30
PID 1680 wrote to memory of 2696	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	30
PID 1680 wrote to memory of 2696	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	30
PID 1680 wrote to memory of 2712	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	32
PID 1680 wrote to memory of 2712	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	32
PID 1680 wrote to memory of 2712	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	32
PID 1680 wrote to memory of 2712	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	32
PID 1680 wrote to memory of 2844	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1680 wrote to memory of 2844	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1680 wrote to memory of 2844	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1680 wrote to memory of 2844	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36
PID 1680 wrote to memory of 2776	1680	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	36

C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
"C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680
- 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\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2696
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\efsOOkOP.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\efsOOkOP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC542.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2844
- C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
  "C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC542.tmp

Filesize
1KB

MD5
2ef4ee134c6bf924cb09ae98ab4c4591

SHA1
51187ab8224e123d1b5f7b0719c1094ca86c200a

SHA256
ff94c6b9533a1391fcbed27afc9fd1bd43e1fdab29ba6054a3d0ba0e6b210ba2

SHA512
cbe3fb10a5d7275021e48d51affd0532fc035b4a4dc361ecf8fa51b551023d5f57a979d234a293566882621af6d8f76e8840f943ad0023a459368470ecab2edb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
36748378161a1e939151df4026688a4e

SHA1
3fe8def622df600ac2c677c48204a2615842fe5c

SHA256
b5cd7e4ba73d4b6e98dd533eaee466bb2ecd64263100cd96aa390e07714d8f78

SHA512
c3d337261bfd9957b70316c85a5da9e8efa82ffd6f1cf894715f55c053c80d7062d8016b70bd2a822280d2cf362ba0f7ad33b26017b69276b4e36cc4e53283f6

Download Submit
memory/1680-40-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-1-0x0000000000FF0000-0x00000000010D4000-memory.dmp

Filesize
912KB

Download
memory/1680-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-3-0x0000000000540000-0x0000000000552000-memory.dmp

Filesize
72KB

Download
memory/1680-4-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1680-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-6-0x00000000053C0000-0x000000000547E000-memory.dmp

Filesize
760KB

Download
memory/1680-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2776-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2776-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2776-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads