Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2024 03:13

General

  • Target

    b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2.exe

  • Size

    7.7MB

  • MD5

    493a5c9a1469cef994d69f1dd102e0da

  • SHA1

    d05de864d273343c4204e9608330a1867a24fa95

  • SHA256

    b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2

  • SHA512

    34fc3dfd16322318e1c48a2ee0446a14005ff2cefe156844e2a868a907c3d7bf8791496d04928146365af646113cadf0f7bbe31c5c0501dd1e97a90310e7fa96

  • SSDEEP

    98304:w3x3FJ58yNYqDP06ZKkcCOQhrgMSVV+uKIqKpFfAlGhrQ:w31H5nqIKCD9uKIqK73B

Malware Config

Extracted

Family

remcos

Botnet

DIC

C2

5.34.178.128:8090

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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    smartscreen.dat

  • keylog_flag

    false

  • keylog_folder

    RuntimeBroker

  • mouse_option

    false

  • mutex

    215154tgrvrt-TXLNA3

  • 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.

  • Remcos family
  • Adds Run key to start application 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2.exe
    "C:\Users\Admin\AppData\Local\Temp\b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2.exe
      "C:\Users\Admin\AppData\Local\Temp\b6bcdbd5822720d72a949b018443c758725389d96cffb16a146830c567c302d2.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\RuntimeBroker\smartscreen.dat

    Filesize

    144B

    MD5

    9353a5e342b91569fe64ded446756fb1

    SHA1

    73c2a233dddfeecc3ee1506d47c90fca954d6e11

    SHA256

    c673666f670aea3a64124ece2b17b39495adaa3dc2bc16326b4201a42aaabac7

    SHA512

    f7f1d0678f1f3ca2216ca30079e09bb265e84afc1d598975c4a75289bb12afb465542698de6eeb08e4c4091e8f52258b48f29fecbcbf0afbfa28b732f0fac9e5

  • memory/2512-7-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-0-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-2-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-5-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-6-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-13-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-17-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2512-31-0x00000000004DA000-0x00000000004F3000-memory.dmp

    Filesize

    100KB

  • memory/2512-1-0x00000000004DA000-0x00000000004F3000-memory.dmp

    Filesize

    100KB

  • memory/2832-24-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-30-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2832-16-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-8-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-18-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-21-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-25-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-26-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-28-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-29-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-12-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-23-0x0000000000400000-0x0000000000BB1000-memory.dmp

    Filesize

    7.7MB

  • memory/2832-22-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-40-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-39-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-47-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-48-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-55-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-56-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-63-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB

  • memory/2832-64-0x00000000001C0000-0x000000000023F000-memory.dmp

    Filesize

    508KB