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Analysis

  • max time kernel
    120s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/09/2024, 21:32

General

  • Target

    91c25d61f4c94021cd66b1d9dd83e3d2ddbdd75a1a31f327f43553c1a5108416N.exe

  • Size

    176KB

  • MD5

    d712c78adf5a4f2401342819af7e9c00

  • SHA1

    235196e495544296d7597af0954b4c9f0afa988d

  • SHA256

    91c25d61f4c94021cd66b1d9dd83e3d2ddbdd75a1a31f327f43553c1a5108416

  • SHA512

    226442bf9f89e66f1380f5ff2d784fff6b2cf39ba55f521e627f387f54ae71f48c87d135363078d29ecacf94debdea4c4bfc182078efe9a9af15d7a81abd0f92

  • SSDEEP

    3072:2C198Wlh4GWtPuCaAYmG5bcFuKnvmb7/D26inavm4QLzHpXP6D8R8FOjcKvDHmBw:Vb8WAGWtPuCaVmG5bnKnvmb7/D26caej

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 50 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91c25d61f4c94021cd66b1d9dd83e3d2ddbdd75a1a31f327f43553c1a5108416N.exe
    "C:\Users\Admin\AppData\Local\Temp\91c25d61f4c94021cd66b1d9dd83e3d2ddbdd75a1a31f327f43553c1a5108416N.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4848
    • C:\Users\Admin\hioqoy.exe
      "C:\Users\Admin\hioqoy.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\hioqoy.exe

    Filesize

    176KB

    MD5

    9dacfd2d347213127a565df302dea989

    SHA1

    f3d48392adb557cd4aa8508d943d82d37cab3a4e

    SHA256

    43f5027004dd1d16bfe5543aac269fe73eb3503c624261dd00ce5f1fc95af9bd

    SHA512

    1912b237ec2f4f27f623507b01fb3aa7dd8e4b81fd95d3f65c69490dc1808ad287a5c4c7b4ae57d702b9ab40a754ec56f2f86a01328fbd3100709f36b458a7ba

  • memory/1544-34-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/1544-38-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/4848-0-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB

  • memory/4848-37-0x0000000000400000-0x000000000042C000-memory.dmp

    Filesize

    176KB