Analysis

  • max time kernel
    141s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    07-03-2023 18:48

General

  • Target

    SeroXen.exe

  • Size

    5.5MB

  • MD5

    e3ea239194c4518d7fc8fb69334168ac

  • SHA1

    473f96fa10a95f63463d38a62a0ae8248702fddf

  • SHA256

    1d9af7c6da48e00d634679c064d4ec726c1feb303b2032bd2034c0e5a4626a86

  • SHA512

    7a7a8d5a02b33ab1b20efb0fba4a9d67ff433684badc4a045ac55a76a11aeac958e70c69b0bf919985fd3729be1e5e568b80b497c6c0b961d7f183f1f6cef1a9

  • SSDEEP

    98304:PJMhcHp5ooEAnHRVN07KgHDpS18DqBRe7qxKfT1J+tNY3LU4rI2qo:eg53HRVu7vHDpS1IqBRU7kCs2q

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 1 IoCs

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

  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\SeroXen.exe
    "C:\Users\Admin\AppData\Local\Temp\SeroXen.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
    PID:968

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll
    Filesize

    3.0MB

    MD5

    e3bd88b3c3e9b33dfa72c814f8826cff

    SHA1

    6d220c9eb7ee695f2b9dec261941bed59cac15e4

    SHA256

    28e9458a43e5d86a341590eaa83d0da18c29fce81f2383d84bda484e049a1796

    SHA512

    fcb7e384b5bda0f810c4b6190a991bd066eedfc8fc97af9837cda1ba480385c8bc09bd703c1029f9d8d8a3eea3dbc03af97b014b4713a4ceea6ad6ae85b3b6e9

  • \Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll
    Filesize

    3.0MB

    MD5

    e3bd88b3c3e9b33dfa72c814f8826cff

    SHA1

    6d220c9eb7ee695f2b9dec261941bed59cac15e4

    SHA256

    28e9458a43e5d86a341590eaa83d0da18c29fce81f2383d84bda484e049a1796

    SHA512

    fcb7e384b5bda0f810c4b6190a991bd066eedfc8fc97af9837cda1ba480385c8bc09bd703c1029f9d8d8a3eea3dbc03af97b014b4713a4ceea6ad6ae85b3b6e9

  • memory/968-66-0x000000001AA90000-0x000000001AACE000-memory.dmp
    Filesize

    248KB

  • memory/968-61-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB

  • memory/968-62-0x000007FEF66B0000-0x000007FEF67DC000-memory.dmp
    Filesize

    1.2MB

  • memory/968-63-0x000000001B430000-0x000000001B4B0000-memory.dmp
    Filesize

    512KB

  • memory/968-64-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB

  • memory/968-65-0x0000000000530000-0x000000000056C000-memory.dmp
    Filesize

    240KB

  • memory/968-54-0x0000000000D80000-0x0000000001302000-memory.dmp
    Filesize

    5.5MB

  • memory/968-67-0x000000001B430000-0x000000001B4B0000-memory.dmp
    Filesize

    512KB

  • memory/968-68-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB

  • memory/968-69-0x000000001B430000-0x000000001B4B0000-memory.dmp
    Filesize

    512KB

  • memory/968-70-0x000000001B430000-0x000000001B4B0000-memory.dmp
    Filesize

    512KB

  • memory/968-72-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB

  • memory/968-74-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB

  • memory/968-79-0x000007FEF2DA0000-0x000007FEF35FF000-memory.dmp
    Filesize

    8.4MB