Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    18-06-2024 17:31

General

  • Target

    bd229dbb74bdb0ff7b1fcd5946fbf9ab_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    bd229dbb74bdb0ff7b1fcd5946fbf9ab

  • SHA1

    c0862662de74148178cecfc258c56ac877860c37

  • SHA256

    cc487ddc590416f6a94cc808247bbdeaf25b35cf01c41f5be2024049d7e2f61d

  • SHA512

    5edd6d1c69f89d63de6c6bd6ba2a6a1bdf8885c90e266f59d958c304d76a30b4c01c75cc0b1db7e6c22b2ee0af92e1133ab6b53ae512169575ccdfd027cee680

  • SSDEEP

    24576:OFBrny7d7eqq2Z32f5daxAosPQbN2BZdbGBjQPec:O4kV2h2fDOA9PQbSZdq5y

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 8 IoCs
  • 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
  • Loads dropped DLL 4 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 35 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
  • 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 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bd229dbb74bdb0ff7b1fcd5946fbf9ab_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bd229dbb74bdb0ff7b1fcd5946fbf9ab_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:2216
      • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
        "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:1948
        • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1416
        • C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe" 2 1416 259395295
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:2568

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\appdata\bjsbjsf.exe
    Filesize

    1.1MB

    MD5

    bd229dbb74bdb0ff7b1fcd5946fbf9ab

    SHA1

    c0862662de74148178cecfc258c56ac877860c37

    SHA256

    cc487ddc590416f6a94cc808247bbdeaf25b35cf01c41f5be2024049d7e2f61d

    SHA512

    5edd6d1c69f89d63de6c6bd6ba2a6a1bdf8885c90e266f59d958c304d76a30b4c01c75cc0b1db7e6c22b2ee0af92e1133ab6b53ae512169575ccdfd027cee680

  • memory/1416-46-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-28-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-27-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-24-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-60-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-52-0x0000000005A00000-0x0000000005A14000-memory.dmp
    Filesize

    80KB

  • memory/1416-50-0x0000000002550000-0x0000000002594000-memory.dmp
    Filesize

    272KB

  • memory/1416-47-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-30-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1416-31-0x0000000001EA0000-0x0000000001F3A000-memory.dmp
    Filesize

    616KB

  • memory/1416-32-0x0000000001EA0000-0x0000000001F3A000-memory.dmp
    Filesize

    616KB

  • memory/1416-33-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1936-2-0x00000000003F0000-0x0000000000400000-memory.dmp
    Filesize

    64KB

  • memory/1936-3-0x0000000000580000-0x0000000000581000-memory.dmp
    Filesize

    4KB

  • memory/1936-0-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/1936-1-0x00000000003F0000-0x0000000000400000-memory.dmp
    Filesize

    64KB

  • memory/1936-6-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB

  • memory/1948-34-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB

  • memory/1948-21-0x0000000001FD0000-0x0000000001FD1000-memory.dmp
    Filesize

    4KB

  • memory/1948-18-0x0000000000220000-0x0000000000221000-memory.dmp
    Filesize

    4KB

  • memory/2216-7-0x0000000000080000-0x0000000000081000-memory.dmp
    Filesize

    4KB

  • memory/2216-4-0x0000000000080000-0x0000000000081000-memory.dmp
    Filesize

    4KB

  • memory/2568-61-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB