Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/12/2023, 23:55

General

  • Target

    2d4ab242c496991f9c2d0b8bae6bbc6ac6e3af9e6ef4d203d8d1e85e90941e2a.exe

  • Size

    1.6MB

  • MD5

    ff2f366a3c766a686a9ae5a74982252a

  • SHA1

    cfa3e40713600842e9092ee8499ca33defc8d3ad

  • SHA256

    2d4ab242c496991f9c2d0b8bae6bbc6ac6e3af9e6ef4d203d8d1e85e90941e2a

  • SHA512

    5eeba1d359ce2cacde4a00524260d3aae5f42854c4f76537635e9ed27a8c6fcf16bcd34982ad3cf9665f0e19f6dd58c043ecd42a13bad1480f25a4a00e02c6e1

  • 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\2d4ab242c496991f9c2d0b8bae6bbc6ac6e3af9e6ef4d203d8d1e85e90941e2a.exe
    "C:\Users\Admin\AppData\Local\Temp\2d4ab242c496991f9c2d0b8bae6bbc6ac6e3af9e6ef4d203d8d1e85e90941e2a.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:2524
    • 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:3460
    • 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:1972
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 1724
      2⤵
      • Program crash
      PID:3780
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:1984
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:1924
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2524 -ip 2524
        1⤵
          PID:1772

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

                Filesize

                1.6MB

                MD5

                ff2f366a3c766a686a9ae5a74982252a

                SHA1

                cfa3e40713600842e9092ee8499ca33defc8d3ad

                SHA256

                2d4ab242c496991f9c2d0b8bae6bbc6ac6e3af9e6ef4d203d8d1e85e90941e2a

                SHA512

                5eeba1d359ce2cacde4a00524260d3aae5f42854c4f76537635e9ed27a8c6fcf16bcd34982ad3cf9665f0e19f6dd58c043ecd42a13bad1480f25a4a00e02c6e1

              • C:\Users\Admin\AppData\Local\Temp\grandUIAvfNtibh3_0vZH\information.txt

                Filesize

                3KB

                MD5

                97fc12629b16b251ed8c29f0230bd4cb

                SHA1

                42ead08f52742000420701c5951292172bc4c2d1

                SHA256

                cd5a6db92599c69cf826dd4dfad8271c6eadf71a512f003b942c3beddaa43e91

                SHA512

                01daa3d7c58940148f5aa55a272c16aaa3b2a32b811d43be1dabdcab6fdf6230f2a5920cdad8cba1bc3c00c2cb299be84735052ffdfe95219f1000d347f86075

              • C:\Users\Admin\AppData\Local\Temp\posterBoxvfNtibh3_0vZH\QdX9ITDLyCRBWeb Data

                Filesize

                92KB

                MD5

                250f6cee6a8be4a85cd0d78b8f9ac854

                SHA1

                48a5be711abe88c0efb7204f6c792e67a99d390a

                SHA256

                21e090219937792f360789c94785cf969cf22fb9e2ae145dec419dc4beab1321

                SHA512

                4685c2cbc34566879e5c494f1433996ce9541e048a87036876d0ec426a02a13af6ed606575306522def4dd19a3fcc34b95335f492b21960b28e8f12be82a35b7

              • C:\Users\Admin\AppData\Local\Temp\posterBoxvfNtibh3_0vZH\ZunTSaNJLBVfWeb Data

                Filesize

                116KB

                MD5

                f70aa3fa04f0536280f872ad17973c3d

                SHA1

                50a7b889329a92de1b272d0ecf5fce87395d3123

                SHA256

                8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

                SHA512

                30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84