Analysis

  • max time kernel
    111s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2024 02:21

General

  • Target

    49cc4a9b9c6a3ffab8832a6f41b8a1ccc6025d7cc1e948025c9e24eb921706acN.exe

  • Size

    75KB

  • MD5

    bc6b454fd9aa7c4bed3337850e889490

  • SHA1

    f9cbf696ce757f0a1146f2f77fc7143766a382f1

  • SHA256

    49cc4a9b9c6a3ffab8832a6f41b8a1ccc6025d7cc1e948025c9e24eb921706ac

  • SHA512

    554c1304361bf8d669dd02462bf5b70e65659d04a2a56683fb9991436f8988d349d558e6b99853ed892b84a71597063d37423201d0ff2f08a58a2a5c6513c011

  • SSDEEP

    768:bDcpEBlLfQcubgEp1Ayk96XyXXPdtldE9aHNWnnnl000e999vddddIyyyOwkkkkT:bDcWLfIbgEp10gyX/dtnTHNWnnn6Y

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
  • 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\49cc4a9b9c6a3ffab8832a6f41b8a1ccc6025d7cc1e948025c9e24eb921706acN.exe
    "C:\Users\Admin\AppData\Local\Temp\49cc4a9b9c6a3ffab8832a6f41b8a1ccc6025d7cc1e948025c9e24eb921706acN.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:5024
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\uauhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4196
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\49CC4A~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3184
  • C:\Windows\Debug\uauhost.exe
    C:\Windows\Debug\uauhost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:3104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\debug\uauhost.exe

    Filesize

    75KB

    MD5

    0a93787ebee0280558229e1b5126b2a9

    SHA1

    d67af1d9f17847c48b0db22d0bc8a635df06da90

    SHA256

    91c741f03a408366dc0b19e8582a93299ef40c99881f356796f5f90ad204f779

    SHA512

    2223138e4134715239be1b3243a88c62584978f81615d453af6b40df2805ee9d215a83867ac7c4d9d58f4d88aab68e393767365e47a26979f8896221f35c54f9

  • memory/3104-6-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/5024-0-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/5024-5-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB