Analysis

  • max time kernel
    51s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 20:29

General

  • Target

    BlamFREE.exe

  • Size

    5.1MB

  • MD5

    34c616e5aecef6d5e8eb159bfb64a3a5

  • SHA1

    3ac025952ba48b9415c544af3a6debf25292e1bd

  • SHA256

    aa412178ead22a7b200d0375a8cf986e19bac59b54ee8fb08d3a9d74127eefe9

  • SHA512

    6a574bd2962045173ba7306131284d3b0121b1be849a8a4fa455bdeb04d44f950c8207161b0e1160c43c45f1950e19adf59c9c1e0aaf6188d56a6132b0e4e28e

  • SSDEEP

    98304:RZNKkmUI4/speViXUmhQIhgO9xlt5kL2/UrBsfiYvlyaiMm5mBTQwJin3:xKkmUIrFUmCIzltz/SmdcMmgpQiin3

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlamFREE.exe
    "C:\Users\Admin\AppData\Local\Temp\BlamFREE.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:4340
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4340 -s 1652
      2⤵
      • Program crash
      PID:3972
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4340 -ip 4340
    1⤵
      PID:936

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4340-0-0x0000000000C50000-0x0000000001686000-memory.dmp
      Filesize

      10.2MB

    • memory/4340-4-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-3-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-1-0x0000000076590000-0x0000000076591000-memory.dmp
      Filesize

      4KB

    • memory/4340-2-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-5-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-6-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-7-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-10-0x0000000000C50000-0x0000000001686000-memory.dmp
      Filesize

      10.2MB

    • memory/4340-11-0x0000000000C50000-0x0000000001686000-memory.dmp
      Filesize

      10.2MB

    • memory/4340-12-0x00000000063C0000-0x0000000006964000-memory.dmp
      Filesize

      5.6MB

    • memory/4340-13-0x0000000005BF0000-0x0000000005C82000-memory.dmp
      Filesize

      584KB

    • memory/4340-14-0x0000000003B70000-0x0000000003BBE000-memory.dmp
      Filesize

      312KB

    • memory/4340-15-0x00000000071E0000-0x00000000071F2000-memory.dmp
      Filesize

      72KB

    • memory/4340-18-0x0000000076570000-0x0000000076660000-memory.dmp
      Filesize

      960KB

    • memory/4340-19-0x0000000000C50000-0x0000000001686000-memory.dmp
      Filesize

      10.2MB