Overview

overview

10

Static

static

3

15879f4f71...18.exe

windows7-x64

10

15879f4f71...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 00:50

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General

  • Target

    15879f4f716f9f09bb561e6f830cf3f8_JaffaCakes118.exe

  • Size

    232KB

  • MD5

    15879f4f716f9f09bb561e6f830cf3f8

  • SHA1

    0df00acd4ee984426062dd82ab0018b5ce577823

  • SHA256

    a2900359ca74be3de45794b44d0aca4286268cc53b4a00d155709a521f8c5166

  • SHA512

    ecfd7ae357728d00644dc9f989b8caeba3de309d3b5c4eeb72a127e2d6f0296edd7392c512f839213075e28f0f98f1f1637a87b3b299262a8f90f1571dbf2bb7

  • SSDEEP

    3072:MpMeBctYwN1Smm727IJCkvIwXX4Ph0ApMX3KKl+Hv/91I/2XrlDuO:MpPBctYwN1S327Y54Ph0TX1kd18Crp

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 52 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\15879f4f716f9f09bb561e6f830cf3f8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\15879f4f716f9f09bb561e6f830cf3f8_JaffaCakes118.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:2044
    • C:\Users\Admin\riuomi.exe
      "C:\Users\Admin\riuomi.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:4204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    232KB

    MD5

    5c9f0ab44f07fb1dd1df3de646e30260

    SHA1

    6537920b67e5caa9853581ec60f9af78b4757653

    SHA256

    980907eedf85f17df192366e2994d954798a3e303d48d090107930620214499e

    SHA512

    52be62410d519f94ffcfcb9e03b150b7475851270f753efde24d67e1b053f6b294fa5351a904e931b46696ee9cb6e468ad599abbf236b57158f8bb1716945e90

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