Analysis

  • max time kernel
    114s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    14-07-2020 06:06

General

  • Target

    PO NOAB1088-2020.pdf.exe

  • Size

    972KB

  • MD5

    e5b79d5699c82c22ac989a739754340d

  • SHA1

    9bd3a38876deb614620f8a9b71e7264d9fd00380

  • SHA256

    a2d04087127197f6a4ae49039fbc2c2dc750ee0fe2d71965a7c675d556d362d3

  • SHA512

    b5216d9b15fc32f937da9438f4fc621327a5ee1eb0481e798b2ae328f090c1c3f9cf1e066f00342c010c0f39d2e75a137bcda2cd6912664fcb7973495bca0f39

Malware Config

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • MassLogger

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LaIrfdsCZdCIJp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB2DA.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1708
    • C:\Users\Admin\AppData\Local\Temp\PO NOAB1088-2020.pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1788

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB2DA.tmp

  • memory/1612-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1708-2-0x0000000000000000-mapping.dmp

  • memory/1788-4-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1788-5-0x000000000049419E-mapping.dmp

  • memory/1788-6-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB

  • memory/1788-7-0x0000000000400000-0x000000000049A000-memory.dmp

    Filesize

    616KB