Overview

overview

10

Static

static

3

3bf934f448...cN.exe

windows7-x64

10

3bf934f448...cN.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/09/2024, 15:12

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General

  • Target

    3bf934f4485ae08c5773b3ba8c995224e7fe99ff6b70f5847abdf344dc89dc7cN.exe

  • Size

    256KB

  • MD5

    e2905c410e8a6a8077de86a98424c630

  • SHA1

    cc076bf4cb7bfdebcc7c17194b22d74d89260cb7

  • SHA256

    3bf934f4485ae08c5773b3ba8c995224e7fe99ff6b70f5847abdf344dc89dc7c

  • SHA512

    27586dd017fa3a3b770a8249795beb2c2af13b951862df4d5006a0c678c71f89d8f35ebca4967eef7ab0783f6d0ab72311d4ba2b6c5ea6ee130d9e8e0dfb23bd

  • SSDEEP

    6144:CfgNPlptNvl9fm0UBFsqMabeYiUDogpF:CW9n9lJvaFsqMvq

Score
10/10
discoveryevasionpersistence

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
    evasion
  • 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 51 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bf934f4485ae08c5773b3ba8c995224e7fe99ff6b70f5847abdf344dc89dc7cN.exe
    "C:\Users\Admin\AppData\Local\Temp\3bf934f4485ae08c5773b3ba8c995224e7fe99ff6b70f5847abdf344dc89dc7cN.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Users\Admin\maimuet.exe
      "C:\Users\Admin\maimuet.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
      PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\maimuet.exe
    Filesize

    256KB

    MD5

    5a57de64b1d6e73f2ef9ee0b6a1825a5

    SHA1

    26a0a48ef586ddad20d5af9e60470c470294cc1c

    SHA256

    0b28bea52f4d57d42ecf92d47aec5e82134e0f1174cebd92b7af0c7c29287aaa

    SHA512

    1d7a74ca2e31865aed59160e262d435e8327b2f57d12359c2886048e8f17d3aa0c930e9e0e6326ab2868f455243b5c42e2328177e5690f065bdbab463a0d6ee9

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