Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 08:40

General

  • Target

    aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe

  • Size

    972KB

  • MD5

    d62f3667a3442858a997db89c58f4eef

  • SHA1

    dae557169720173b6ce70228670154bd95cae0c3

  • SHA256

    aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19

  • SHA512

    c85a29e92edf84235de9891b13b09c000bd948363d5fe1c3eb5af1ffeb35c0b95da7f8a166cec5df83c0e5feb5d7234cc9a8e44c884189b9c34cc8d7daa11bbc

  • SSDEEP

    12288:5umVWXiUJmBCk1sV2tfIUFspQ2zgKZhKV9+xhJJPeWiHD7aqZMJkD:hifJmBPfepFgahKmJejcs

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.76:7119

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-P2SX34

  • 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.

  • Remcos family
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe
    "C:\Users\Admin\AppData\Local\Temp\aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2340
    • 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\aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZxiJIiRCztV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2828
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZxiJIiRCztV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp712A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2840
    • C:\Users\Admin\AppData\Local\Temp\aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe
      "C:\Users\Admin\AppData\Local\Temp\aad7bf71a682b4e3b5814d3096cd40b27c194a68a536fb16127f969627ebbf19.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp712A.tmp

    Filesize

    1KB

    MD5

    842815b7a51a0063dcff7834344b5dc6

    SHA1

    216f80b5a9008db48164ba711fad331d3caa07de

    SHA256

    07966c3fe24bf9505d7165c0543c49a0917a6f4d2e3d341ccb455c8498e664aa

    SHA512

    508571fcb1926e86c916222fd3483c804ab09ff4ef23d6a4dbe0f5f81a2fcace0e2307f8163802408eb9b6bd74c02abdd4aa0eb623bd32a40f63115df70545c7

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

    Filesize

    7KB

    MD5

    0648e875f0663833d02263a2bce51489

    SHA1

    b98bd0ecb6162ef7b4983b52ec6469eddcec49ef

    SHA256

    e86ea510d4fd582a6b3961b5319b925c0733bdf09857622d68111d50e0fbc338

    SHA512

    d7b7a5c716872bea60531e40bb99f3c17efde126f8d9a5b5780fb5ef5ee9909030003ad3a204d1d6840c2ae2bde926e781ce81ca847cb5addcbe7387809332fb

  • memory/2340-0-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/2340-1-0x0000000000D80000-0x0000000000E74000-memory.dmp

    Filesize

    976KB

  • memory/2340-2-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2340-3-0x0000000074A3E000-0x0000000074A3F000-memory.dmp

    Filesize

    4KB

  • memory/2340-4-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2340-5-0x0000000000470000-0x0000000000482000-memory.dmp

    Filesize

    72KB

  • memory/2340-6-0x0000000005D40000-0x0000000005E00000-memory.dmp

    Filesize

    768KB

  • memory/2340-40-0x0000000074A30000-0x000000007511E000-memory.dmp

    Filesize

    6.9MB

  • memory/2620-27-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-33-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-23-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-25-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2620-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-36-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-21-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-31-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-29-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-19-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-41-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-45-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2620-46-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB