Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-03-2024 14:26

General

  • Target

    b4eca0c093be55ecd3e7ad17b5130e46.exe

  • Size

    2.9MB

  • MD5

    b4eca0c093be55ecd3e7ad17b5130e46

  • SHA1

    27601722e5dfc4523842b6f3998f0d82a584b7dc

  • SHA256

    eeb187cdea92ed939a396ee999acfd756a09663dd8a7f444cdbf72d06b660815

  • SHA512

    2c1db64502b86c547541024390357dd526d09b37d90e4adbf00ddf547516549fb10eda64165f3f1c3aa849bca48a6afad1081ce4654e5ab064124751e0289146

  • SSDEEP

    49152:h9jl72TC3sg0nn5Mvx+noHXYUgbWyhmEvOKpwVQW3NgLQ29p2t3u20FlvSou0izh:h1l7b3sg0nn5Mp+noHlyhJGKKUMM20js

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.

  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 3 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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\b4eca0c093be55ecd3e7ad17b5130e46.exe
    "C:\Users\Admin\AppData\Local\Temp\b4eca0c093be55ecd3e7ad17b5130e46.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:3512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3512 -s 992
      2⤵
      • Program crash
      PID:3900
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3512 -ip 3512
    1⤵
      PID:708
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:696

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\13f36763-6f3c-4d36-b875-4871599d9a06\AgileDotNetRT.dll

        Filesize

        140KB

        MD5

        edd74be9723cdc6a5692954f0e51c9f3

        SHA1

        e9fb66ceee1ba4ce7e5b8271b3e1ed7cb9acf686

        SHA256

        55ff1e0a4e5866d565ceeb9baafac73fdcb4464160fc6c78104d935009935cd7

        SHA512

        80abecdd07f364283f216d8f4d90a4da3efd4561900631fce05c2916afeb1b5bbce23ae92d57430b7b2b06c172b2ad701b2ab75b6dfd2a861abcf7edc38462f3

      • memory/3512-13-0x0000000005C60000-0x0000000006204000-memory.dmp

        Filesize

        5.6MB

      • memory/3512-6-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-1-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-22-0x0000000073540000-0x00000000735C9000-memory.dmp

        Filesize

        548KB

      • memory/3512-21-0x0000000072A80000-0x0000000072AA8000-memory.dmp

        Filesize

        160KB

      • memory/3512-5-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-7-0x00000000775C4000-0x00000000775C6000-memory.dmp

        Filesize

        8KB

      • memory/3512-11-0x00000000003B0000-0x0000000000B42000-memory.dmp

        Filesize

        7.6MB

      • memory/3512-12-0x00000000003B0000-0x0000000000B42000-memory.dmp

        Filesize

        7.6MB

      • memory/3512-0-0x00000000003B0000-0x0000000000B42000-memory.dmp

        Filesize

        7.6MB

      • memory/3512-3-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-2-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-4-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-23-0x0000000006210000-0x00000000062A2000-memory.dmp

        Filesize

        584KB

      • memory/3512-25-0x00000000003B0000-0x0000000000B42000-memory.dmp

        Filesize

        7.6MB

      • memory/3512-26-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-27-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-28-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-30-0x0000000076150000-0x0000000076240000-memory.dmp

        Filesize

        960KB

      • memory/3512-31-0x00000000003B0000-0x0000000000B42000-memory.dmp

        Filesize

        7.6MB

      • memory/3512-32-0x0000000072A80000-0x0000000072AA8000-memory.dmp

        Filesize

        160KB