Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:41

General

  • Target

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5.exe

  • Size

    183KB

  • MD5

    23127700d29f175b1cfc95aee76744b7

  • SHA1

    b7720f74b3e6c5e8de8104a10d84db7b27f395ef

  • SHA256

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5

  • SHA512

    eb1e7b8ca724c4b7f72093a380086c880f159ca7047a179e20b3eb869cd6c126611c50616ea91830a30c2fba38abad51a21a4de1180bdc579830e5ea32bb2de6

  • SSDEEP

    3072:BPprdo/5Plc91XQzaH6FZ2YRjKjujvTfvIax7qbbf4sznHL:ZAP+1AeQnRj6uHf2b8sz

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5.exe
    "C:\Users\Admin\AppData\Local\Temp\a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1672
    • C:\Users\Admin\AppData\Local\Temp\a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5.exe
      C:\Users\Admin\AppData\Local\Temp\a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\ProgramData\svchost.exe
        "C:\ProgramData\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\ProgramData\svchost.exe
          C:\ProgramData\svchost.exe
          4⤵
          • Executes dropped EXE
          • Drops startup file
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:856
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\ProgramData\svchost.exe" "svchost.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:2028

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\svchost.exe
    Filesize

    183KB

    MD5

    23127700d29f175b1cfc95aee76744b7

    SHA1

    b7720f74b3e6c5e8de8104a10d84db7b27f395ef

    SHA256

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5

    SHA512

    eb1e7b8ca724c4b7f72093a380086c880f159ca7047a179e20b3eb869cd6c126611c50616ea91830a30c2fba38abad51a21a4de1180bdc579830e5ea32bb2de6

  • C:\ProgramData\svchost.exe
    Filesize

    183KB

    MD5

    23127700d29f175b1cfc95aee76744b7

    SHA1

    b7720f74b3e6c5e8de8104a10d84db7b27f395ef

    SHA256

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5

    SHA512

    eb1e7b8ca724c4b7f72093a380086c880f159ca7047a179e20b3eb869cd6c126611c50616ea91830a30c2fba38abad51a21a4de1180bdc579830e5ea32bb2de6

  • C:\ProgramData\svchost.exe
    Filesize

    183KB

    MD5

    23127700d29f175b1cfc95aee76744b7

    SHA1

    b7720f74b3e6c5e8de8104a10d84db7b27f395ef

    SHA256

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5

    SHA512

    eb1e7b8ca724c4b7f72093a380086c880f159ca7047a179e20b3eb869cd6c126611c50616ea91830a30c2fba38abad51a21a4de1180bdc579830e5ea32bb2de6

  • \ProgramData\svchost.exe
    Filesize

    183KB

    MD5

    23127700d29f175b1cfc95aee76744b7

    SHA1

    b7720f74b3e6c5e8de8104a10d84db7b27f395ef

    SHA256

    a35e2948aa479bcfe9352531e4f161728214ff231d4e93ddcdd4224beb2f02b5

    SHA512

    eb1e7b8ca724c4b7f72093a380086c880f159ca7047a179e20b3eb869cd6c126611c50616ea91830a30c2fba38abad51a21a4de1180bdc579830e5ea32bb2de6

  • memory/856-79-0x000000000040AEDE-mapping.dmp
  • memory/1108-72-0x0000000000D00000-0x0000000000D34000-memory.dmp
    Filesize

    208KB

  • memory/1108-69-0x0000000000000000-mapping.dmp
  • memory/1584-59-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-64-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-66-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-67-0x0000000075111000-0x0000000075113000-memory.dmp
    Filesize

    8KB

  • memory/1584-62-0x000000000040AEDE-mapping.dmp
  • memory/1584-61-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-60-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-57-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1584-56-0x0000000000400000-0x0000000000410000-memory.dmp
    Filesize

    64KB

  • memory/1672-54-0x0000000000240000-0x0000000000274000-memory.dmp
    Filesize

    208KB

  • memory/1672-55-0x00000000004D0000-0x00000000004EC000-memory.dmp
    Filesize

    112KB

  • memory/2028-85-0x0000000000000000-mapping.dmp