Overview

overview

10

Static

static

4dfb6e970c...1f.exe

windows7-x64

10

4dfb6e970c...1f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    181s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 16:06

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General

  • Target

    4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe

  • Size

    586KB

  • MD5

    4cd1844f73c8ab6346f0fcac06597c96

  • SHA1

    d72b2af26d479a091492f8840da8caf5b192bb2f

  • SHA256

    4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f

  • SHA512

    eb9bd53e79f7b4a9d81bfde011c6959753551b4c2bd3ae6aebea9ea007c098ca6a37fb2be0db9bb98bd28a7cfc4a0654141bd0378ac22c1eae59aa5a3e95d834

  • SSDEEP

    12288:RlZOn5NPWJAJRBpWHWTGd1Gaibl6TNxN+eo4Nxm/v0GFV:Re5N+JER6XvGaKl6TJV6

Score
10/10
persistence

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe
    "C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:668
    • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Mp0HWlzrSg87QaV8.xls"
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:4752
    • C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe
      "C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe"
      2⤵
        PID:3608
      • C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe
        "C:\Users\Admin\AppData\Local\Temp\4dfb6e970cba6f407f300f7aae1194748b6cf3965f589cb215a93a0158d5351f.exe"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:940

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Mp0HWlzrSg87QaV8.xls
      Filesize

      32KB

      MD5

      a4ecc1b737ae3d0acfba6df6c30473f4

      SHA1

      ce1809cc0006fd5467edddf030cff0e84585fb7c

      SHA256

      3566715c319f7187edcec6dbd175fd837551a1efbc9aa9e4397915d96e2a12a5

      SHA512

      6d39e78e8678c1e4701b5471d30f2db2a23cc41d644232a5a3e4b3cc4c1b8122bbbf21d09713f190d463dd153818d266ba397385756a78698fdd24cea1a9f35f

      Download Submit

    • memory/668-132-0x0000000074780000-0x0000000074D31000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/668-133-0x0000000074780000-0x0000000074D31000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/940-137-0x0000000000400000-0x000000000048C000-memory.dmp

      Filesize

      560KB

      Download

    • memory/940-138-0x0000000074780000-0x0000000074D31000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/940-145-0x0000000074780000-0x0000000074D31000-memory.dmp

      Filesize

      5.7MB

      Download

    • memory/4752-139-0x00007FFBF2B50000-0x00007FFBF2B60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-141-0x00007FFBF2B50000-0x00007FFBF2B60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-142-0x00007FFBF2B50000-0x00007FFBF2B60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-143-0x00007FFBF2B50000-0x00007FFBF2B60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-144-0x00007FFBF0290000-0x00007FFBF02A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-140-0x00007FFBF2B50000-0x00007FFBF2B60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4752-146-0x00007FFBF0290000-0x00007FFBF02A0000-memory.dmp

      Filesize

      64KB

      Download