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Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13/03/2024, 16:26

General

  • Target

    c657885b18b244e54f8292933f74018e.exe

  • Size

    432KB

  • MD5

    c657885b18b244e54f8292933f74018e

  • SHA1

    0e87b183da4571b9a57fc9d249c7bf9a6f0a1d41

  • SHA256

    1941cf4f2cc2aba80c51002946dd2c0f75da10b0e169a5d7db67985e6d41c99c

  • SHA512

    515b42b12ec93bbdd9c57b155a09e1e40d6dcacb9b466c9e08684dccf65a487eb85940df840af0676299acf9bd547b869be9caff7a61bc5d59486bc658b13aa8

  • SSDEEP

    12288:441TXKOrbNfYJmiyjjM0xdeTOLG9vZ23F:4kTaO3NfSmiyjIsm5xQF

Score
8/10

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c657885b18b244e54f8292933f74018e.exe
    "C:\Users\Admin\AppData\Local\Temp\c657885b18b244e54f8292933f74018e.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1756
    • C:\ProgramData\dRBAHQLTbF.exe
      "C:\ProgramData\dRBAHQLTbF.exe"
      2⤵
      • Executes dropped EXE
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      PID:2052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \ProgramData\dRBAHQLTbF.exe

    Filesize

    432KB

    MD5

    c657885b18b244e54f8292933f74018e

    SHA1

    0e87b183da4571b9a57fc9d249c7bf9a6f0a1d41

    SHA256

    1941cf4f2cc2aba80c51002946dd2c0f75da10b0e169a5d7db67985e6d41c99c

    SHA512

    515b42b12ec93bbdd9c57b155a09e1e40d6dcacb9b466c9e08684dccf65a487eb85940df840af0676299acf9bd547b869be9caff7a61bc5d59486bc658b13aa8

  • memory/1756-0-0x00000000003A0000-0x00000000003F7000-memory.dmp

    Filesize

    348KB

  • memory/1756-1-0x0000000000600000-0x0000000000675000-memory.dmp

    Filesize

    468KB

  • memory/1756-14-0x00000000003A0000-0x00000000003F7000-memory.dmp

    Filesize

    348KB

  • memory/2052-11-0x00000000002E0000-0x0000000000337000-memory.dmp

    Filesize

    348KB