Analysis

  • max time kernel
    262s
  • max time network
    335s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    02-12-2022 13:07

General

  • Target

    8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee.exe

  • Size

    218KB

  • MD5

    b8845a76e3942ff4d20ba4660ae926bb

  • SHA1

    eb90f945087c270a2ecc11753180ba4ecc270696

  • SHA256

    8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

  • SHA512

    9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

  • SSDEEP

    6144:aC61i972rJmciP98f2H64DQFu/U3buRKlemZ9DnGAe/Ix3Sd7+:aK972I/Gf2a4DQFu/U3buRKlemZ9DnG9

Malware Config

Signatures

  • Detects Zeppelin payload 5 IoCs
  • Zeppelin Ransomware

    Ransomware-as-a-service (RaaS) written in Delphi and first seen in 2019.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe" -start
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1388
        • C:\Windows\SysWOW64\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1628
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no
        3⤵
          PID:1660
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
          3⤵
            PID:704
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet
            3⤵
              PID:840
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1716
              • C:\Windows\SysWOW64\vssadmin.exe
                vssadmin delete shadows /all /quiet
                4⤵
                • Interacts with shadow copies
                PID:1540
            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe
              "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe" -agent 0
              3⤵
              • Executes dropped EXE
              • Drops file in Program Files directory
              PID:832
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\~temp001.bat
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1216
              • C:\Windows\SysWOW64\Wbem\WMIC.exe
                wmic shadowcopy delete
                4⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:2020
              • C:\Windows\SysWOW64\vssadmin.exe
                vssadmin delete shadows /all /quiet
                4⤵
                • Interacts with shadow copies
                PID:1596
          • C:\Windows\SysWOW64\notepad.exe
            notepad.exe
            2⤵
            • Deletes itself
            PID:1860
        • C:\Windows\system32\vssvc.exe
          C:\Windows\system32\vssvc.exe
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:928

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\~temp001.bat

          Filesize

          521B

          MD5

          8a55e9dcda6d9b5b2a7c0ecaccf13068

          SHA1

          4804d35c80a15f7d63c3a143aa26778391537e2b

          SHA256

          db6cd89149e838122410fd50253ce2460444dea299d5c49b1a2f97b561b0d749

          SHA512

          c849477241bc950994dd85387f51be5e050604c7d46f10c4b9fb3bc7e308d658a08a7f3aa0b691eefb5fac2baaf7a5dd799bb159758b600e4f8d332329b44e9c

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe

          Filesize

          218KB

          MD5

          b8845a76e3942ff4d20ba4660ae926bb

          SHA1

          eb90f945087c270a2ecc11753180ba4ecc270696

          SHA256

          8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

          SHA512

          9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe

          Filesize

          218KB

          MD5

          b8845a76e3942ff4d20ba4660ae926bb

          SHA1

          eb90f945087c270a2ecc11753180ba4ecc270696

          SHA256

          8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

          SHA512

          9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe

          Filesize

          218KB

          MD5

          b8845a76e3942ff4d20ba4660ae926bb

          SHA1

          eb90f945087c270a2ecc11753180ba4ecc270696

          SHA256

          8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

          SHA512

          9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

        • \Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe

          Filesize

          218KB

          MD5

          b8845a76e3942ff4d20ba4660ae926bb

          SHA1

          eb90f945087c270a2ecc11753180ba4ecc270696

          SHA256

          8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

          SHA512

          9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

        • \Users\Admin\AppData\Roaming\Microsoft\Windows\services.exe

          Filesize

          218KB

          MD5

          b8845a76e3942ff4d20ba4660ae926bb

          SHA1

          eb90f945087c270a2ecc11753180ba4ecc270696

          SHA256

          8ab79654152668be2c10be9cb17d941685e7733628dd7d38d6979516a75682ee

          SHA512

          9e2eda3dfe3bbdf149707eefe67d889fc88e0aa45ae23023367a8914b8feabd1badb043dfb5f8301541d4489d31b79164380a5ac8031662156c639008c26c4fc

        • memory/1172-54-0x0000000075D11000-0x0000000075D13000-memory.dmp

          Filesize

          8KB