Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/12/2023, 23:29

General

  • Target

    af7e32f9c5f9241ed270f603e8a14b2bb3c259f50a7f2953b8cbffa38e174f31.exe

  • Size

    1.6MB

  • MD5

    80519ce315d13f3abf5e48148011d606

  • SHA1

    ae9895dd41c05ed9224260f3bf94a83ac5d78e19

  • SHA256

    af7e32f9c5f9241ed270f603e8a14b2bb3c259f50a7f2953b8cbffa38e174f31

  • SHA512

    095084ff0ccb306c1090239fb2e590b580502ed7c136ed6cb7c7806c3619368cc971004ec12770e080a6de481470672d1631cab2bfcbdc6cccfae5d4f7969e22

  • SSDEEP

    49152:80ceOGgUYYEmluRKYoFh4kGWusbQnIyDi1E1uonTKi/OjCCNG:1XOGgUYC4RKXFhrusbaDkE1u

Malware Config

Signatures

  • Drops startup file 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 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af7e32f9c5f9241ed270f603e8a14b2bb3c259f50a7f2953b8cbffa38e174f31.exe
    "C:\Users\Admin\AppData\Local\Temp\af7e32f9c5f9241ed270f603e8a14b2bb3c259f50a7f2953b8cbffa38e174f31.exe"
    1⤵
    • Drops startup file
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:3664
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:400
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:508
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3664 -s 1600
      2⤵
      • Program crash
      PID:4912
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4084
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localsystemnetworkrestricted -s fhsvc
      1⤵
        PID:4164

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

              Filesize

              1.6MB

              MD5

              80519ce315d13f3abf5e48148011d606

              SHA1

              ae9895dd41c05ed9224260f3bf94a83ac5d78e19

              SHA256

              af7e32f9c5f9241ed270f603e8a14b2bb3c259f50a7f2953b8cbffa38e174f31

              SHA512

              095084ff0ccb306c1090239fb2e590b580502ed7c136ed6cb7c7806c3619368cc971004ec12770e080a6de481470672d1631cab2bfcbdc6cccfae5d4f7969e22

            • C:\Users\Admin\AppData\Local\Temp\grandUIAVWp00XXrmYm_c\information.txt

              Filesize

              3KB

              MD5

              10c8deaf493f7682d1359fb15ef9d4c7

              SHA1

              754ef23eac7a39cae44d375519f708952547d13f

              SHA256

              b7728b316807843a040eb31a835c84dd169f60d701aa7e446c0223fbca2209c7

              SHA512

              3da38aec8ebc1a0f97aa4b6a17e1341ad69e8b5bd61bc3bb273b1104302805586d650d8ac873e1bd8a0c250c1e4a7775213ed2d5f63a00f31709ae1bf2396a5f

            • C:\Users\Admin\AppData\Local\Temp\posterBoxVWp00XXrmYm_c\QdX9ITDLyCRBWeb Data

              Filesize

              92KB

              MD5

              8e8e7137325b5aa4e1206f338a7ccde7

              SHA1

              23a2d46d2812f664d8fff942d493e85afe5f6a27

              SHA256

              bbbd94e3e65b0cf446d3f651f1a557e479c2adc8c0c955a18addd89fcd7ffe25

              SHA512

              1512bc6ad27b5b794d44b2599ace04a325b32726a1c96e2f8a6f75d55c494e65a4cdd1ea241027d693cd54dc049ad4a23b2147bb1a49450b7949cc71dba06233