Analysis

  • max time kernel
    150s
  • max time network
    102s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    11-07-2020 05:59

General

  • Target

    0176a34057e7db4cc4810bb8eedad9cd.exe

  • Size

    1012KB

  • MD5

    0176a34057e7db4cc4810bb8eedad9cd

  • SHA1

    5efad940258c83d5d31212f291ff784079cee405

  • SHA256

    407768d45386b545b588ceb938324586954e446132ecef0273b8067cbf1ce4d9

  • SHA512

    0a78d3156ca824926eff67bef86fa9a33f623f5515cc4737e8c4d840fdb27684430c9751f58dfef82d790665855ff42a29b58bafd85d338948a78868253b34e1

Malware Config

Signatures

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Looks up external IP address via web service 1 IoCs

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

  • MassLogger

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1370 IoCs
  • Loads dropped DLL 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • UPX packed file 3 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops startup file 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Suspicious use of SetThreadContext 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0176a34057e7db4cc4810bb8eedad9cd.exe
    "C:\Users\Admin\AppData\Local\Temp\0176a34057e7db4cc4810bb8eedad9cd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1544
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • NTFS ADS
      • Loads dropped DLL
      • Drops startup file
      • Suspicious use of WriteProcessMemory
      PID:744
      • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
        "C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe"
        3⤵
        • Suspicious behavior: MapViewOfSection
        • Suspicious behavior: EnumeratesProcesses
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetThreadContext
        PID:484
        • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe"
          4⤵
          • Suspicious use of SetWindowsHookEx
          • Suspicious behavior: AddClipboardFormatListener
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:752
        • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
          "C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe" 2 752 64724
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Executes dropped EXE
          PID:1624

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • C:\Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • \Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • \Users\Admin\AppData\Roaming\appdata\jskkd.exe
  • memory/484-4-0x0000000000000000-mapping.dmp
  • memory/744-0-0x0000000000000000-mapping.dmp
  • memory/744-1-0x00000000000C0000-0x00000000000C1000-memory.dmp
    Filesize

    4KB

  • memory/752-13-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/752-7-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/752-8-0x000000000053FBC0-mapping.dmp
  • memory/752-12-0x0000000000400000-0x0000000000541000-memory.dmp
    Filesize

    1.3MB

  • memory/752-14-0x0000000000550000-0x00000000005EA000-memory.dmp
    Filesize

    616KB

  • memory/752-15-0x0000000000232000-0x0000000000233000-memory.dmp
    Filesize

    4KB

  • memory/752-16-0x0000000000240000-0x00000000002D4000-memory.dmp
    Filesize

    592KB

  • memory/1624-10-0x0000000000000000-mapping.dmp