Analysis

  • max time kernel
    90s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2023 10:06

General

  • Target

    c5fcb78f3d8f37ad58277089aa4ad3f4e6f0388ad8ee3c8e19065bab1b7f38e7.exe

  • Size

    483KB

  • MD5

    aa4942da9a41c2c7ce12bc3855eb2350

  • SHA1

    07ddcf865989c7f5a07a9835f59d222e5a438edd

  • SHA256

    c5fcb78f3d8f37ad58277089aa4ad3f4e6f0388ad8ee3c8e19065bab1b7f38e7

  • SHA512

    abb6c4b4ccd210623e7eaa3638e142e91b58e22cc09719a6f233402ed451e68af7fe11ef6bb7fd7ff293b68f7042d147f4db388a9a7506815f6640c7e78beab3

  • SSDEEP

    12288:2CcmFM0luMoL4Ip5iYVCZWOERUB3HDrOtW:27m20M4IpAqCZZE6B3POc

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    pro40.emailserver.vn
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vexa@2013

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5fcb78f3d8f37ad58277089aa4ad3f4e6f0388ad8ee3c8e19065bab1b7f38e7.exe
    "C:\Users\Admin\AppData\Local\Temp\c5fcb78f3d8f37ad58277089aa4ad3f4e6f0388ad8ee3c8e19065bab1b7f38e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3400af39614b453ab067d20087a02703.xml"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3400af39614b453ab067d20087a02703.xml"
        3⤵
        • Creates scheduled task(s)
        PID:4184
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Users\Admin\AppData\Local\Temp\c5fcb78f3d8f37ad58277089aa4ad3f4e6f0388ad8ee3c8e19065bab1b7f38e7.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:868
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 1792
        3⤵
        • Program crash
        PID:316
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 868 -ip 868
    1⤵
      PID:664

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\3400af39614b453ab067d20087a02703.xml

      Filesize

      1KB

      MD5

      284af8cf030ab5d0003cf68a44204bc5

      SHA1

      4010bf27e5ce1177ac18fac30b5c1d6ac6a51cf5

      SHA256

      97024db9c8cab0b562c8dbabfd8bfc615d99af32c00fe1e81084ca2c262a43f4

      SHA512

      19cb855bb03da299d77bbfc28d41710c57013d7de5dcd55b70dc0af9a8799ad3472386c9375103a5bb7ccc1d51759fb188e0b3a7d96a8ab918bf341e7f6e1cd4

    • memory/868-136-0x0000000000400000-0x000000000046A000-memory.dmp

      Filesize

      424KB

    • memory/868-138-0x00000000058D0000-0x000000000596C000-memory.dmp

      Filesize

      624KB

    • memory/868-139-0x0000000005F20000-0x00000000064C4000-memory.dmp

      Filesize

      5.6MB

    • memory/868-140-0x0000000006D20000-0x0000000006EE2000-memory.dmp

      Filesize

      1.8MB

    • memory/2912-134-0x0000000000F6A000-0x0000000000F70000-memory.dmp

      Filesize

      24KB