Overview

overview

10

Static

static

3

81c4f9963d...18.exe

windows7-x64

10

81c4f9963d...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    22s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2024 21:08

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General

  • Target

    81c4f9963dd2099915fd4e6f54dad969_JaffaCakes118.exe

  • Size

    64KB

  • MD5

    81c4f9963dd2099915fd4e6f54dad969

  • SHA1

    f155b91ef95f08884e01e81d3938d8fb1bece37e

  • SHA256

    aca81d6f1061a026df786c014c6599faf8bb77bdba7c7ecf902aed5cb3940541

  • SHA512

    042ec8438e47a6b7b95122abed3b7f10537aba1995f4bacf7067a155257107638f654e68a03ae0a807ce9a2b04f0af6ee0bc6fd02be105042d11602a5986f2f4

  • SSDEEP

    768:7XK1Jsz/2COCKvxPD3WDKaZbO0lBo+fKpxcP60BPYXcgIufVXHo+DNXK:rOJsz/2HCKvRLUipy9BPkcgIutXfDZ

Score
10/10
discoveryevasionpersistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
    persistence
  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
    evasion
  • Disables RegEdit via registry modification 3 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 3 IoCs
    persistence
  • Adds Run key to start application 2 TTPs 6 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 6 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 24 IoCs
  • Drops file in Windows directory 10 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\81c4f9963dd2099915fd4e6f54dad969_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\81c4f9963dd2099915fd4e6f54dad969_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visibility of file extensions in Explorer
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe C:\Users\Admin\AppData\Local\Temp\81c4f9963dd2099915fd4e6f54dad969_JaffaCakes118
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5004
    • C:\Windows\10.1.08.exe
      C:\Windows\10.1.08.exe first
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\1o.1.o8.exe
        C:\Windows\1o.1.o8.exe first
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visibility of file extensions in Explorer
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Modifies system executable filetype association
        • Adds Run key to start application
        • Drops autorun.inf file
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:3364
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:4576
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4964

    Network

    MITRE ATT&CK Enterprise v15

    Reconnaissance

    Resource Development

    Initial Access

    Replication Through Removable Media

    1
    T1091

    Execution

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Winlogon Helper DLL

    1
    T1547.004

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Defense Evasion

    Hide Artifacts

    1
    T1564

    Hidden Files and Directories

    1
    T1564.001

    Modify Registry

    5
    T1112

    Credential Access

    Discovery

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Lateral Movement

    Replication Through Removable Media

    1
    T1091

    Collection

    Command and Control

    Exfiltration

    Impact

    Replay Monitor

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    Downloads

    • F:\10.1.08.exe
      Filesize

      64KB

      MD5

      81c4f9963dd2099915fd4e6f54dad969

      SHA1

      f155b91ef95f08884e01e81d3938d8fb1bece37e

      SHA256

      aca81d6f1061a026df786c014c6599faf8bb77bdba7c7ecf902aed5cb3940541

      SHA512

      042ec8438e47a6b7b95122abed3b7f10537aba1995f4bacf7067a155257107638f654e68a03ae0a807ce9a2b04f0af6ee0bc6fd02be105042d11602a5986f2f4

      Download Submit

    • F:\autorun.inf
      Filesize

      202B

      MD5

      df3298142cadd966aed043f2e44e841b

      SHA1

      b22111a6e77fe6ec8daea24da5545552ffedd187

      SHA256

      adff5fba26d6f1cd6de55e9c0b32b74bbbf979817eb10aa3f84d9967f53509de

      SHA512

      be89b677613043855003d693dbe924983009647ee47e6dd7eca200fa1ab0c79994e7b2b305edfe48a584ef7187725dbf8d6b78b2f396afcd2ff567a161e34ff0

      Download Submit

    • memory/1700-0-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

      Download

    • memory/1700-17-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

      Download

    • memory/3364-24-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

      Download