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Analysis

  • max time kernel
    111s
  • max time network
    101s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 07:39

General

  • Target

    f6f44d2f2611e1cad033394146808250N.exe

  • Size

    163KB

  • MD5

    f6f44d2f2611e1cad033394146808250

  • SHA1

    1dff810cee8116696019f954b28b90cdb2b95dde

  • SHA256

    2c5521cb43cbc111995c9175a8da0df092bca37d8bf830544e42d98dbabf95a8

  • SHA512

    e7130ce13a32e3c59b4fb959606109a5abc3d8ee4940d97cde7970a8424d8e47f0a0efd3c205bda39899a8cf406f6a89582cfd1dac5fea818f8638fd47ec30da

  • SSDEEP

    1536:kVdmQr3Z5IfQmv81aypP1s3yX+tlehTzk:008JOfQm01F9s3yX+fehTY

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6f44d2f2611e1cad033394146808250N.exe
    "C:\Users\Admin\AppData\Local\Temp\f6f44d2f2611e1cad033394146808250N.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\hauhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:1884
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F6F44D~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3660
  • C:\Windows\Debug\hauhost.exe
    C:\Windows\Debug\hauhost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:4580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\debug\hauhost.exe

    Filesize

    163KB

    MD5

    5c4fbebfb83ea3e4051cb67a592d2ea6

    SHA1

    ce1f6176b2941bacf37bd3a7d03c492726451522

    SHA256

    7ffdba7c37d9ea6bf6e457215618e5420e0a6a54ffec2839f58c7ac47e672823

    SHA512

    bfb38e9489c23d733df5f47b2bd93118ceae0958a4d55ed88d4378b69876d4d2d5e12f7f01aa502cd3b69129a4408264b9e0b46381795798572b885a30719f24

  • memory/2224-0-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2224-5-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4580-6-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB