Overview

overview

10

Static

static

3

d4d15d78e2...18.exe

windows7-x64

10

d4d15d78e2...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 02:31

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General

  • Target

    d4d15d78e292869c5488ddc05e227f10_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    d4d15d78e292869c5488ddc05e227f10

  • SHA1

    9d0416d6bf68ed1a088c010046cd2fad4b7d32dd

  • SHA256

    fa66310d09441ef074ebec4df91a8210a710a44c5ddb7d7040a1aabce1679f59

  • SHA512

    52619ebcec38ceec0a73e795cd5068fc7457b339931cd46bfa396e1c463cecf29c48106a6b30f6e0f45fce0a981c18bd436954b7e4559f25b5cf2705d83e85a3

  • SSDEEP

    24576:rAOcZAhwaU3m5RJ8+LhdXpWxIhjKLeZGEyYDSZaC/+YxkJkscoPE+FQYcXGI9y:tuaC3+z5yFeZGEytZ/+wodco8+6T9y

Score
10/10
remcoswetransferdiscoverypersistencerat

Malware Config

Extracted

Family

remcos

Version

3.2.0 Pro

Botnet

WeTransfer

C2

mrbigs.hopto.org:1707

Attributes
  • audio_folder

    MicRecords

  • audio_path

    %AppData%

  • 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

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    Remcos-C1GVMP

  • 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

  • take_screenshot_title

    notepad;solitaire;

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

    ratremcos
  • Remcos family
    remcos
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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 3 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d4d15d78e292869c5488ddc05e227f10_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d4d15d78e292869c5488ddc05e227f10_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Users\Admin\AppData\Roaming\66514893\piaaqxgatq.pif
      "C:\Users\Admin\AppData\Roaming\66514893\piaaqxgatq.pif" exmbbor.ecn
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:832
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:4136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\66514893\piaaqxgatq.pif
    Filesize

    649KB

    MD5

    e423fa6f72ef1a0d63ef5f85380657d6

    SHA1

    83114ec1db55867fde6d249352fcb3c52ef53af2

    SHA256

    4c38d6dc99e8219ccc923bddc94c9298f6b5aee6b4b42323d924cffdeafd356e

    SHA512

    687407a6354547f11faf190472e5fa5c50c0d01d911823b372d80029054e2e830c08b2a9100f5f1b1a742d0755bddfb784854bd7431f98b6b352010e2d01dac3

    Download Submit

  • C:\Users\Admin\AppData\Roaming\66514893\trwjwqsah.ppt
    Filesize

    980KB

    MD5

    dd01e5ba2b6c4b4705a32b25cb6401c4

    SHA1

    c68d2812b3cd25ab9718985a0de333d841393df3

    SHA256

    2458d2f4ae8ae1c34e785c3008ed034d2079d9d4037e3df6ef47fef8a51b1691

    SHA512

    7e523ef4c8577ee9086fbfaede91b71c5d96b801d792daa138fc54e84cf244cf1429ef43a208c12e2509d629c974cce361b3b305de7d03ab9813d37514fe8857

    Download Submit

  • C:\Users\Admin\AppData\Roaming\remcos\logs.dat
    Filesize

    232B

    MD5

    2bd9c76af5e4b847938456f97664aeb1

    SHA1

    a492da111a2e8fa0a0da4b06757404377bff6e0a

    SHA256

    92f0903cd2c353cd55c3fd2373abff47bb951ca8e74abb6cfe589c8c483d5f5d

    SHA512

    93be5f498a6a243403f305336c3eb510d92bd933d777cae5afa0f3d898dc2497c9a2ec57ab84fbca3e06a6ae5980e5e9bef7dede3d2c4fb1734ba5420e5dd322

    Download Submit

  • memory/4136-54-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-55-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-56-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-57-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-59-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-58-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-62-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download

  • memory/4136-64-0x0000000000B00000-0x00000000011F1000-memory.dmp

    Filesize

    6.9MB

    Download