Overview

overview

10

Static

static

977ee0929e...bd.exe

windows7-x64

10

977ee0929e...bd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 00:22

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General

  • Target

    977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd.exe

  • Size

    208KB

  • MD5

    4bf1fd8555c274b1a50f512a479b32cc

  • SHA1

    58eca0653bff679c22c2f9bd220d69c5a0fcf937

  • SHA256

    977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd

  • SHA512

    62a9b4c24eea91fe736053a1dde9d61c2a32d0b27c2adcd532fde75ef2c2260f8131a440db2002a35c73c3d0ed2ce576182f10c4c396b0772e6a7244b4832c95

  • SSDEEP

    3072:lZnvjUPKMszPIU8+pHj7VxaPD4XitC62gq3Hedbe/:lQyIr47G7B86vg8by

Score
10/10
evasionpersistence

Malware Config

Signatures

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

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

  • Adds Run key to start application 2 TTPs 29 IoCs
    persistence
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd.exe
    "C:\Users\Admin\AppData\Local\Temp\977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4520
    • C:\Users\Admin\poixuuf.exe
      "C:\Users\Admin\poixuuf.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4372
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 1252
      2⤵
      • Program crash
      PID:2944
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:5024
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4520 -ip 4520
      1⤵
        PID:2768

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Hidden Files and Directories

      1
      T1158

      Registry Run Keys / Startup Folder

      1
      T1060

      Privilege Escalation

      Defense Evasion

      Hidden Files and Directories

      1
      T1158

      Modify Registry

      2
      T1112

      Credential Access

      Discovery

      Query Registry

      2
      T1012

      System Information Discovery

      3
      T1082

      Peripheral Device Discovery

      1
      T1120

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Impact

      Replay Monitor

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      Downloads

      • C:\Users\Admin\poixuuf.exe
        Filesize

        208KB

        MD5

        4bf1fd8555c274b1a50f512a479b32cc

        SHA1

        58eca0653bff679c22c2f9bd220d69c5a0fcf937

        SHA256

        977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd

        SHA512

        62a9b4c24eea91fe736053a1dde9d61c2a32d0b27c2adcd532fde75ef2c2260f8131a440db2002a35c73c3d0ed2ce576182f10c4c396b0772e6a7244b4832c95

        Download Submit
      • C:\Users\Admin\poixuuf.exe
        Filesize

        208KB

        MD5

        4bf1fd8555c274b1a50f512a479b32cc

        SHA1

        58eca0653bff679c22c2f9bd220d69c5a0fcf937

        SHA256

        977ee0929ebf9bc48877575a35d2c6ffd6168978cffc1c36c00c0279ec85f4bd

        SHA512

        62a9b4c24eea91fe736053a1dde9d61c2a32d0b27c2adcd532fde75ef2c2260f8131a440db2002a35c73c3d0ed2ce576182f10c4c396b0772e6a7244b4832c95

        Download Submit
      • memory/4372-134-0x0000000000000000-mapping.dmp
        Download