Analysis

  • max time kernel
    150s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-06-2024 14:47

General

  • Target

    aa40c4ef4b203519caee4277630754e4_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    aa40c4ef4b203519caee4277630754e4

  • SHA1

    5c1f63e4c7508c4acbcce75cc774929353fb649d

  • SHA256

    ec9281b1e4cbbcb084368da146fd13f55d33aa8b7d8214cadbc0f6b707ef893f

  • SHA512

    fa97ca4d10bd262c48a7bdaa3be66f9e3584e3bcedecb57c263edf8bcde5feb73f4a204582044c102adcd88152765b3c97ded6dcabe0283f0cdbe236e30f18a2

  • SSDEEP

    24576:iFBrny7d7eqq2Z32fy/VCTK9kM/wAG8qJ5A0Cr:i4kV2h2fMgTK9kMXFqJ5ALr

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 6 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
  • 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
  • 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\aa40c4ef4b203519caee4277630754e4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\aa40c4ef4b203519caee4277630754e4_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe
        "C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:3632
        • C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.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:1632
        • C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe
          "C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe" 2 1632 240598375
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:3708

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

  • C:\Users\Admin\AppData\Roaming\appdata\wertyytdf.exe
    Filesize

    1.1MB

    MD5

    aa40c4ef4b203519caee4277630754e4

    SHA1

    5c1f63e4c7508c4acbcce75cc774929353fb649d

    SHA256

    ec9281b1e4cbbcb084368da146fd13f55d33aa8b7d8214cadbc0f6b707ef893f

    SHA512

    fa97ca4d10bd262c48a7bdaa3be66f9e3584e3bcedecb57c263edf8bcde5feb73f4a204582044c102adcd88152765b3c97ded6dcabe0283f0cdbe236e30f18a2

  • memory/1496-2-0x0000000002400000-0x0000000002410000-memory.dmp
    Filesize

    64KB

  • memory/1496-1-0x0000000002400000-0x0000000002410000-memory.dmp
    Filesize

    64KB

  • memory/1496-3-0x0000000002430000-0x0000000002431000-memory.dmp
    Filesize

    4KB

  • memory/1496-4-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB

  • memory/1496-0-0x0000000000640000-0x0000000000641000-memory.dmp
    Filesize

    4KB

  • memory/1632-38-0x0000000004B70000-0x0000000004C0C000-memory.dmp
    Filesize

    624KB

  • memory/1632-44-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-49-0x0000000007870000-0x0000000007884000-memory.dmp
    Filesize

    80KB

  • memory/1632-16-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-20-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-25-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-48-0x0000000007800000-0x0000000007850000-memory.dmp
    Filesize

    320KB

  • memory/1632-24-0x00000000009F0000-0x0000000000A8A000-memory.dmp
    Filesize

    616KB

  • memory/1632-23-0x00000000009F0000-0x0000000000A8A000-memory.dmp
    Filesize

    616KB

  • memory/1632-22-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-19-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/1632-37-0x0000000004CC0000-0x0000000005264000-memory.dmp
    Filesize

    5.6MB

  • memory/1632-46-0x0000000006890000-0x000000000689A000-memory.dmp
    Filesize

    40KB

  • memory/1632-41-0x0000000004C40000-0x0000000004C84000-memory.dmp
    Filesize

    272KB

  • memory/1632-42-0x00000000052B0000-0x0000000005316000-memory.dmp
    Filesize

    408KB

  • memory/1632-43-0x0000000005460000-0x00000000054F2000-memory.dmp
    Filesize

    584KB

  • memory/2092-5-0x0000000001230000-0x0000000001231000-memory.dmp
    Filesize

    4KB

  • memory/3632-12-0x00000000005C0000-0x00000000005C1000-memory.dmp
    Filesize

    4KB

  • memory/3632-26-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB

  • memory/3632-15-0x0000000003FB0000-0x0000000003FB1000-memory.dmp
    Filesize

    4KB

  • memory/3708-45-0x0000000000400000-0x0000000000517000-memory.dmp
    Filesize

    1.1MB