Analysis

  • max time kernel
    150s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-08-2024 21:57

General

  • Target

    bf7fcf17bf095024c652311fc8a41ddc_JaffaCakes118.exe

  • Size

    967KB

  • MD5

    bf7fcf17bf095024c652311fc8a41ddc

  • SHA1

    c6b6a7f77539b56ba26fb14fe578931deb7d47d5

  • SHA256

    b60334d1ae623de52b95660c1869e65a7c1b075ca58f2ad48711beb931190c5e

  • SHA512

    1b0ea6cecd7d83646639a7e38fd451fc65ff6b9c9f1a18a21da3ccff47ef1f120a677415b02bf9715f04d1508d89a4602ce78e86b6e37bf0e82bdd9272023684

  • SSDEEP

    24576:I+pbzwIxk4Vdoqm+cx3db6cL/7S14KeK0lrfPAkIN:ZpbkGtLK+8dWcLuOKeXlrnw

Malware Config

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main payload 5 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf7fcf17bf095024c652311fc8a41ddc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bf7fcf17bf095024c652311fc8a41ddc_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4008
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:4320
      • C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe
        "C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4948
        • C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:4840
        • C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe" 2 4840 240613171
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\appdata\jsfjsfksnm.exe

    Filesize

    967KB

    MD5

    bf7fcf17bf095024c652311fc8a41ddc

    SHA1

    c6b6a7f77539b56ba26fb14fe578931deb7d47d5

    SHA256

    b60334d1ae623de52b95660c1869e65a7c1b075ca58f2ad48711beb931190c5e

    SHA512

    1b0ea6cecd7d83646639a7e38fd451fc65ff6b9c9f1a18a21da3ccff47ef1f120a677415b02bf9715f04d1508d89a4602ce78e86b6e37bf0e82bdd9272023684

  • memory/4008-2-0x0000000002520000-0x0000000002533000-memory.dmp

    Filesize

    76KB

  • memory/4008-1-0x0000000002520000-0x0000000002533000-memory.dmp

    Filesize

    76KB

  • memory/4008-3-0x0000000002650000-0x0000000002651000-memory.dmp

    Filesize

    4KB

  • memory/4008-0-0x0000000002490000-0x0000000002491000-memory.dmp

    Filesize

    4KB

  • memory/4008-4-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/4176-38-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/4176-49-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/4320-5-0x0000000000450000-0x0000000000451000-memory.dmp

    Filesize

    4KB

  • memory/4840-39-0x0000000004CC0000-0x0000000005264000-memory.dmp

    Filesize

    5.6MB

  • memory/4840-41-0x0000000004C40000-0x0000000004C84000-memory.dmp

    Filesize

    272KB

  • memory/4840-26-0x0000000000AB0000-0x0000000000B4A000-memory.dmp

    Filesize

    616KB

  • memory/4840-22-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-25-0x0000000000AB0000-0x0000000000B4A000-memory.dmp

    Filesize

    616KB

  • memory/4840-21-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-19-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-40-0x0000000004B80000-0x0000000004C1C000-memory.dmp

    Filesize

    624KB

  • memory/4840-52-0x00000000076B0000-0x00000000076C4000-memory.dmp

    Filesize

    80KB

  • memory/4840-24-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-42-0x00000000052B0000-0x0000000005316000-memory.dmp

    Filesize

    408KB

  • memory/4840-20-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-45-0x0000000005450000-0x00000000054E2000-memory.dmp

    Filesize

    584KB

  • memory/4840-46-0x0000000000400000-0x0000000000541000-memory.dmp

    Filesize

    1.3MB

  • memory/4840-47-0x0000000006840000-0x000000000684A000-memory.dmp

    Filesize

    40KB

  • memory/4840-51-0x00000000076D0000-0x0000000007720000-memory.dmp

    Filesize

    320KB

  • memory/4948-17-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB

  • memory/4948-12-0x0000000000400000-0x00000000004F8000-memory.dmp

    Filesize

    992KB