Overview

overview

10

Static

static

3

e3dc5b2d20...bd.exe

windows7-x64

10

e3dc5b2d20...bd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 10:34

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General

  • Target

    e3dc5b2d20052b4658fa35f928c10d831ee05dc9218a85826b366f480adfd8bd.exe

  • Size

    88KB

  • MD5

    0a4200838f49f7dded2cedf9b79c07e4

  • SHA1

    888ec3a613a70541f29179c0fd5cdf888b330461

  • SHA256

    e3dc5b2d20052b4658fa35f928c10d831ee05dc9218a85826b366f480adfd8bd

  • SHA512

    e1fd94f82cf623029cc1ed0435be97a427779cb8f16d6a183760518b6b0087980a39daacd76ee794a5e85cee95ccdc8b4cd2e3e16dc2577d15f57445bc4d0910

  • SSDEEP

    768:6lXIk+U+KiMeffZzCjsK2+/T/PmLRBNV3ZJfqHJvE/AZbydR:6JIk+tVR5K2KjPmLRBNJqHJNZmdR

Score
10/10
discoveryevasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 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.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3dc5b2d20052b4658fa35f928c10d831ee05dc9218a85826b366f480adfd8bd.exe
    "C:\Users\Admin\AppData\Local\Temp\e3dc5b2d20052b4658fa35f928c10d831ee05dc9218a85826b366f480adfd8bd.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Users\Admin\buamuuh.exe
      "C:\Users\Admin\buamuuh.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2364
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 784
      2⤵
      • Program crash
      PID:2348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\buamuuh.exe
    Filesize

    88KB

    MD5

    44faff9445c2047f6509072a14fc4344

    SHA1

    8622e936be7f6d7bc20ac9b1fe4cb2bff0b1a274

    SHA256

    e514179215a767443767b0823d17504a8a4fb20e4a68a65f588751a4a8ede19d

    SHA512

    9013b7e1450dc45a0bf768efe148cfc84f649e891d9e6c77df0cb822f24e3fc13c7dc3dabbbac3b6351c7e12a407595d6d266cf1d676b7834ef011d4c9a3d607

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