Analysis

  • max time kernel
    96s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 01:19

General

  • Target

    NEW PURCHASE ORDER NO.PO 4510040833 DATED 9.24.2020.pdf.exe

  • Size

    912KB

  • MD5

    fc581accff41ff1fd95aceea6af7835a

  • SHA1

    cfb163356efbee91607c1d590c9b81533f7d3e9c

  • SHA256

    3662a3b002337c0da8ad94925e3c183f0a2d35b0932f9d40b89643335f10564d

  • SHA512

    401b79a9a88ea482e8ff0ab2869933cb4d389135f47713a361c60908b079bedbcfed4a9dac6bd53eed1c592d9ade3285e6d8c7e82964e528823423a6a0b51eea

  • SSDEEP

    24576:BgCRrn939njG8cyjab5F1I2oWESe+m0r144zH:tnd9njGJyjaqnLSe+ti4z

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER NO.PO 4510040833 DATED 9.24.2020.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER NO.PO 4510040833 DATED 9.24.2020.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER NO.PO 4510040833 DATED 9.24.2020.pdf.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:4864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NEW PURCHASE ORDER NO.PO 4510040833 DATED 9.24.2020.pdf.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2156-6-0x00000000062B0000-0x000000000634C000-memory.dmp

    Filesize

    624KB

  • memory/2156-2-0x00000000050F0000-0x0000000005694000-memory.dmp

    Filesize

    5.6MB

  • memory/2156-3-0x0000000004BE0000-0x0000000004C72000-memory.dmp

    Filesize

    584KB

  • memory/2156-4-0x0000000004D70000-0x0000000004D7A000-memory.dmp

    Filesize

    40KB

  • memory/2156-5-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2156-17-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2156-7-0x0000000004E30000-0x0000000004E42000-memory.dmp

    Filesize

    72KB

  • memory/2156-8-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/2156-9-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/2156-10-0x0000000006560000-0x0000000006608000-memory.dmp

    Filesize

    672KB

  • memory/2156-11-0x0000000008F40000-0x0000000008FE0000-memory.dmp

    Filesize

    640KB

  • memory/2156-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

    Filesize

    4KB

  • memory/2156-1-0x00000000000E0000-0x00000000001CA000-memory.dmp

    Filesize

    936KB

  • memory/4864-12-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/4864-16-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-15-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-18-0x00000000062B0000-0x0000000006316000-memory.dmp

    Filesize

    408KB

  • memory/4864-19-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-20-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-21-0x0000000006C80000-0x0000000006CD0000-memory.dmp

    Filesize

    320KB

  • memory/4864-22-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-23-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-24-0x0000000074C00000-0x00000000753B0000-memory.dmp

    Filesize

    7.7MB