Analysis

  • max time kernel
    84s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-01-2024 01:26

General

  • Target

    5bc68c6b8ce3afa22e67e2bc43b242fd.exe

  • Size

    107KB

  • MD5

    5bc68c6b8ce3afa22e67e2bc43b242fd

  • SHA1

    4cd8f6e1fdb3b2ff6bdb42f0c74f4ac780869d7e

  • SHA256

    cb6498cb56a096081d878f72d94cc025faca1dbacd31f0c9d84fc1b6b4e176bb

  • SHA512

    6c40d68fbb782a83675dd252424399de471e06ce50d738d8db547198612150fa6e257ef055edd5640a50ca0a60a7672f7828d5f9914900d58287366a2e4c8195

  • SSDEEP

    1536:5L/eV0oohJlHH05ndYcW60T6hcZvRdf7Wwt8dPi9qH1HWux6JBPEY+41cJ:8Va/H0LY/Rmhudf7hAZH12ux6/8O+

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • UPX packed file 2 IoCs

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

  • 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.

  • Drops file in System32 directory 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Modifies Control Panel 8 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\5bc68c6b8ce3afa22e67e2bc43b242fd.exe
    "C:\Users\Admin\AppData\Local\Temp\5bc68c6b8ce3afa22e67e2bc43b242fd.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Checks processor information in registry
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\.tt6E98.tmp.vbs"
      2⤵
        PID:3660
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3104
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:988
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:3
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4576

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\.tt6E98.tmp.vbs

      Filesize

      1002B

      MD5

      9df700c8f6fd43fac0a89aef04214bbd

      SHA1

      6ec8bc6d4041ccf19757757c0da6592469f71c57

      SHA256

      9ab6f2c3cc3965cd05f81d859bdfac3b25a5e70178f61ea677d31987c4e142fd

      SHA512

      8bbcd322f3998c0f7d81884737ca313c1353ac7e3899f168fc8d44eafbe064193353b8b16f92113288ff2102c47623b542861440c414b8acf36d75c4ad645d4d

    • C:\Windows\SysWOW64\blphc1gqj0erj6.scr

      Filesize

      59KB

      MD5

      538f9ead95eba12134d95b4fe7082331

      SHA1

      527c50b92b5cededdd5b7e3edda71cb13d108dac

      SHA256

      a416bab39037854c14540edaaf80cff7b5f2e9db31eee235527574e8dedd54e6

      SHA512

      4631ff7cf868348585ee0e26591b95be3ee8b232c7980f5013f4464f285b0fbdef41794c44cb8653d6fb6dc815c0c0a9f4af780bfeb9b23d2f4c3bdc62bf4581

    • memory/2664-0-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/2664-2-0x00000000021B0000-0x00000000021E0000-memory.dmp

      Filesize

      192KB

    • memory/2664-3-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/2664-1-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/2664-4-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/2664-16-0x0000000003080000-0x0000000003134000-memory.dmp

      Filesize

      720KB

    • memory/2664-20-0x0000000000400000-0x0000000000436000-memory.dmp

      Filesize

      216KB

    • memory/2664-21-0x00000000021B0000-0x00000000021E0000-memory.dmp

      Filesize

      192KB