Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    30/05/2022, 19:35

General

  • Target
    0920dc44442e04d196db33657904fa09414b02c767c56ef06b17d6a5ef2d5f53.exe
  • Size 136KB
  • Sample220530-yazryachar
  • SHA256 0920dc44442e04d196db33657904fa09414b02c767c56ef06b17d6a5ef2d5f53
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0920dc44442e04d196db33657904fa09414b02c767c56ef06b17d6a5ef2d5f53.exe
    "C:\Users\Admin\AppData\Local\Temp\0920dc44442e04d196db33657904fa09414b02c767c56ef06b17d6a5ef2d5f53.exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • outlook_office_path
    • outlook_win_path
    PID:1292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1292 -s 1556
      2⤵
      • Program crash
      PID:648
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1292 -ip 1292
    1⤵
      PID:1636

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1292-130-0x0000000000B80000-0x0000000000BA6000-memory.dmp

          memory/1292-131-0x0000000005FC0000-0x0000000006564000-memory.dmp

          memory/1292-132-0x0000000005AF0000-0x0000000005B8C000-memory.dmp

          memory/1292-133-0x0000000006C40000-0x0000000006E02000-memory.dmp