Analysis

  • max time kernel
    190s
  • max time network
    206s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 04:08

General

  • Target

    a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0.exe

  • Size

    294KB

  • MD5

    f45c5aeae6229b81ee5f94d42d4e5b44

  • SHA1

    38a957d797bb88d5a65088744a8e0abb3fc29508

  • SHA256

    a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0

  • SHA512

    6596aa21f69b1c06490d0fb899f4eea59561e23642109f200024dae220e18e1f7d4de8b2ac5ee5c67ba7bfe6cc6c11de5b23563915c86f92b58afdd3bf6b42f8

  • SSDEEP

    6144:k6G9HGWgugnhFCCV15wS71PUcjSse2g9X+muCThb7xwc62tByfntT9PoKtICvZZv:k6AmWNg3CCV1qS719bggzWhbJj8RoKlL

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0.exe
    "C:\Users\Admin\AppData\Local\Temp\a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1828
    • C:\ProgramData\xNBdaanLvfl.exe
      C:\ProgramData\xNBdaanLvfl.exe
      2⤵
      • Executes dropped EXE
      • Maps connected drives based on registry
      PID:1196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\xNBdaanLvfl.exe

    Filesize

    294KB

    MD5

    f45c5aeae6229b81ee5f94d42d4e5b44

    SHA1

    38a957d797bb88d5a65088744a8e0abb3fc29508

    SHA256

    a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0

    SHA512

    6596aa21f69b1c06490d0fb899f4eea59561e23642109f200024dae220e18e1f7d4de8b2ac5ee5c67ba7bfe6cc6c11de5b23563915c86f92b58afdd3bf6b42f8

  • \ProgramData\xNBdaanLvfl.exe

    Filesize

    294KB

    MD5

    f45c5aeae6229b81ee5f94d42d4e5b44

    SHA1

    38a957d797bb88d5a65088744a8e0abb3fc29508

    SHA256

    a3ca0890a2fdc57ff8d414fc374575320641c5e1c70fbc53a54b4417b0b02bf0

    SHA512

    6596aa21f69b1c06490d0fb899f4eea59561e23642109f200024dae220e18e1f7d4de8b2ac5ee5c67ba7bfe6cc6c11de5b23563915c86f92b58afdd3bf6b42f8

  • memory/1196-60-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/1828-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

    Filesize

    8KB

  • memory/1828-55-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB