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Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/01/2025, 01:00

General

  • Target

    17012025_0100_fifuc6.ps1

  • Size

    182KB

  • MD5

    531f7522fa2f658d3695b8827ce1a651

  • SHA1

    084d8a701f8f285b88abe292c2b4dbb202b23406

  • SHA256

    f0924aa3814edd9834cb39707a1d9c217b6c99a2229b1c9264e4c7f72ef8ac66

  • SHA512

    6d2977b3c85d710cad721ba4f2ac9256eb1ef4416975f17a7159d1c9adbac0d1eb6bddd0985b896711bef2846c58128379afb322c2f75388bef3cc405984779b

  • SSDEEP

    3072:xQvNklrvsQRAvUnjuw1cYpQAO8PJ3lPZA9iR3TxUK/zGc5+n:GvGlAAnCwhHPplP2943Tz/zX5w

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cl-logistics.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    logistics@123

Signatures

  • Executes dropped EXE 1 IoCs
  • 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 3 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 3 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\17012025_0100_fifuc6.ps1
    1⤵
    • Command and Scripting Interpreter: PowerShell
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Users\Admin\AppData\Local\Temp\x.exe
      "C:\Users\Admin\AppData\Local\Temp\x.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2644
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\x.exe

    Filesize

    136KB

    MD5

    fb9802a28361f8146263d7256008a8aa

    SHA1

    a6623bc42fd64c7f09127cfa990afbae4c90e5e7

    SHA256

    dcc1cd97606ab9dfcea2d2ffaedc16eaf51d48c22d1bbdec82d528d7153b7a90

    SHA512

    10a5bf50153d7329281aa383ca1115f30645a841861adbc2b9121c30d95b741daafb1f21774507e225a0c63de5150eb2c9e77289fe847414ebf45a4cfdd2e30c

  • memory/2324-18-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2324-5-0x000000001B6B0000-0x000000001B992000-memory.dmp

    Filesize

    2.9MB

  • memory/2324-7-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2324-8-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2324-6-0x0000000001F70000-0x0000000001F78000-memory.dmp

    Filesize

    32KB

  • memory/2324-9-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2324-10-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2324-4-0x000007FEF610E000-0x000007FEF610F000-memory.dmp

    Filesize

    4KB

  • memory/2644-19-0x0000000000B70000-0x0000000000B9A000-memory.dmp

    Filesize

    168KB

  • memory/2644-17-0x000000007411E000-0x000000007411F000-memory.dmp

    Filesize

    4KB

  • memory/2644-20-0x0000000074110000-0x00000000747FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2644-36-0x0000000074110000-0x00000000747FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2748-31-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-35-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-33-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2748-27-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-25-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-23-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB

  • memory/2748-21-0x0000000000400000-0x000000000041E000-memory.dmp

    Filesize

    120KB