Analysis

  • max time kernel
    186s
  • max time network
    230s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 18:40

General

  • Target

    d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2.exe

  • Size

    116KB

  • MD5

    47b059248a97e2cbc4d28070100c3e10

  • SHA1

    0f65e03a0bea15be580fcdc492e2c98ba7229108

  • SHA256

    d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

  • SHA512

    64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

  • SSDEEP

    1536:pMVAH0FThCKSwXsr9iNN7Touxknseofc7nySqDo6xa9BhvHz5jboEl3K9MEApleh:iZhC9gsUXTDkKansivlf3KEeec

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2.exe
    "C:\Users\Admin\AppData\Local\Temp\d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1256
    • C:\Users\Admin\AppData\Local\Temp\d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2.exe
      "C:\Users\Admin\AppData\Local\Temp\d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2.exe"71
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Loads dropped DLL
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Users\Admin\snruay.exe
        "C:\Users\Admin\snruay.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1916
        • C:\Users\Admin\snruay.exe
          "C:\Users\Admin\snruay.exe" 71
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1632
      • C:\Windows\SysWOW64\PhotoScreensaver.scr
        "C:\Windows\System32\PhotoScreensaver.scr" /S
        3⤵
          PID:1328

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Replication Through Removable Media

    1
    T1091

    Persistence

    Hidden Files and Directories

    1
    T1158

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Hidden Files and Directories

    1
    T1158

    Modify Registry

    2
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    2
    T1082

    Lateral Movement

    Replication Through Removable Media

    1
    T1091

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      116KB

      MD5

      47b059248a97e2cbc4d28070100c3e10

      SHA1

      0f65e03a0bea15be580fcdc492e2c98ba7229108

      SHA256

      d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

      SHA512

      64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

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

      116KB

      MD5

      47b059248a97e2cbc4d28070100c3e10

      SHA1

      0f65e03a0bea15be580fcdc492e2c98ba7229108

      SHA256

      d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

      SHA512

      64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

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

      116KB

      MD5

      47b059248a97e2cbc4d28070100c3e10

      SHA1

      0f65e03a0bea15be580fcdc492e2c98ba7229108

      SHA256

      d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

      SHA512

      64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

    • \Users\Admin\snruay.exe
      Filesize

      116KB

      MD5

      47b059248a97e2cbc4d28070100c3e10

      SHA1

      0f65e03a0bea15be580fcdc492e2c98ba7229108

      SHA256

      d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

      SHA512

      64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

    • \Users\Admin\snruay.exe
      Filesize

      116KB

      MD5

      47b059248a97e2cbc4d28070100c3e10

      SHA1

      0f65e03a0bea15be580fcdc492e2c98ba7229108

      SHA256

      d16164e49fd72cc4bf5edd59526b09f4b3f0733af30941432a9920f2a33f79d2

      SHA512

      64e9eb05ca8f48ef3c64573e43d17fd8eae0f53a16e872d56820da75c5d33891c7042e1c529ba28aca6573983d1097976b1cc4e88fa19188261ff07a17f4dd73

    • memory/1328-71-0x0000000000000000-mapping.dmp
    • memory/1632-83-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/1632-80-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/1632-74-0x00000000004010E0-mapping.dmp
    • memory/1916-66-0x0000000000000000-mapping.dmp
    • memory/2020-57-0x00000000004010E0-mapping.dmp
    • memory/2020-62-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/2020-56-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/2020-59-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/2020-82-0x0000000000400000-0x0000000000415000-memory.dmp
      Filesize

      84KB

    • memory/2020-63-0x0000000075C41000-0x0000000075C43000-memory.dmp
      Filesize

      8KB