Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    26-07-2024 11:47

General

  • Target

    3f69729a8f2b22e625bb984f28758ebc.exe

  • Size

    939KB

  • MD5

    3f69729a8f2b22e625bb984f28758ebc

  • SHA1

    ab8aab5952dfcf0d705daff76448920c67b6241d

  • SHA256

    d1b50fc6ce79320a88defef33baf6a51e30845bd13ab2b52f7925ba0b8f527cd

  • SHA512

    c4622e82f66aa728ded76ef628bd31ddcd35581a10a6043e735e557a26c8f9c72c67713f29a3ed90f647bf268484b44cf812918a02aa8e1539c3fdac7bcc1fa1

  • SSDEEP

    24576:Yglv8Jv17LLE1hUG+n1KD9Wa9PMEgDzx9mZREOUqqHXONlVUE:oPYf+n1KDghPx9ARDhqHXOR

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

204.10.160.230:7983

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-O7QOC3

  • 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.

  • 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\3f69729a8f2b22e625bb984f28758ebc.exe
    "C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2408
    • 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\3f69729a8f2b22e625bb984f28758ebc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2740
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HODoCxSdp.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HODoCxSdp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp97EC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2628
    • C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.exe
      "C:\Users\Admin\AppData\Local\Temp\3f69729a8f2b22e625bb984f28758ebc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp97EC.tmp

    Filesize

    1KB

    MD5

    6d67cffea901eb896031888670265508

    SHA1

    002632f4bdad827683b2ff686db069e00f532842

    SHA256

    34b46e56209dd08b619ffa6d7eb65f7a77b6f18617510020b628dcc81df4527f

    SHA512

    5bfea7ecac2e5ee4315a966c195ec3f5d168841d701ae0232f7a38069322507090d585f9bdbe968e9000e977aa893b5ea1e786f2ae6dd352387745c33fb5abfc

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

    Filesize

    7KB

    MD5

    a4ea9675836c5071c2e421a56acc81b0

    SHA1

    3431a560352cbad8198ed00efca7554af30d3c6a

    SHA256

    19ea7690243df3dc220c783560fa124b855e92414d71d2bdb7b53f64cec1c226

    SHA512

    5077cd6cf194e3cedc69277f0814e18cbbb854959b973180244a31e7aa0c0639c39e972c2a5e45d2b6d625482e1fce5052056926158b096378b35f0c7abf9763

  • memory/1260-34-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-52-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-32-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-51-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-49-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-50-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-47-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-48-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-20-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-28-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-38-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-39-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-37-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1260-44-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-40-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-43-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-42-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-26-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-24-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-30-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/1260-22-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/2408-41-0x00000000749E0000-0x00000000750CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2408-3-0x0000000004B30000-0x0000000004C00000-memory.dmp

    Filesize

    832KB

  • memory/2408-4-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/2408-1-0x00000000010A0000-0x000000000118E000-memory.dmp

    Filesize

    952KB

  • memory/2408-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2408-7-0x00000000749EE000-0x00000000749EF000-memory.dmp

    Filesize

    4KB

  • memory/2408-6-0x0000000005100000-0x00000000051BE000-memory.dmp

    Filesize

    760KB

  • memory/2408-5-0x0000000000410000-0x000000000041E000-memory.dmp

    Filesize

    56KB

  • memory/2408-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

    Filesize

    4KB