Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    13-10-2023 02:58

General

  • Target

    9824d07cea51069c0042eff0e46d1ad2.exe

  • Size

    312KB

  • MD5

    9824d07cea51069c0042eff0e46d1ad2

  • SHA1

    70ef130a8f88076dc671ab9873b2a3a3c45818fc

  • SHA256

    d7cb8a2d60e1818d0638a4c38cd6fae475dc83ab7b2bde9827ecc4e4a7ce6ed7

  • SHA512

    6d38269e1c93c7e8bd6668cd26947cb821043c9bcbcb19d586795e0fb3d52b8a492e3817eef912bae165973c001c205fd879bbca9810339e6b45bda1651e3bb9

  • SSDEEP

    6144:XAo4v3KmeRDWs0cSsm42PWB1vEtf8h81dZgjvxbtIGnWSPgYYshfnmU3H1l5Fy4:XGimeAs0cuvuB14I9JWfWnNl

Malware Config

Signatures

  • Phobos

    Phobos ransomware appeared at the beginning of 2019.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (169) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies Windows Firewall 1 TTPs 2 IoCs
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 13 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Program crash 1 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
    "C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
      C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
        "C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2052
        • C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
          C:\Users\Admin\AppData\Local\Temp\9824d07cea51069c0042eff0e46d1ad2.exe
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2640
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 164
            5⤵
            • Program crash
            PID:2644
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:812
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:848
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:372
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:892
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:2804
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2648
        • C:\Windows\system32\netsh.exe
          netsh advfirewall set currentprofile state off
          4⤵
          • Modifies Windows Firewall
          PID:3016
        • C:\Windows\system32\netsh.exe
          netsh firewall set opmode mode=disable
          4⤵
          • Modifies Windows Firewall
          PID:1212
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1892
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:236
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:552
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:2340

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW.cab.id[917AE50A-3483].[[email protected]].8base

        Filesize

        143.1MB

        MD5

        3fecf7ced4e7a33977aff73f63a683ab

        SHA1

        491702195fd96b4d23db98e9a7f8a2d49c5fa196

        SHA256

        7346d58e8b7287ac1770f85c371a9d21437bbd262cf2cdba7081e10c877a1584

        SHA512

        3573280694c96fb0b3f84fbed6e16abd519fa62430779a06f4cc26fa57e48fcb1cb8ebefe655576222fe5d3c27bf6d3c1c7f22da1e9cd2f29dca164a6cdb79ba

      • memory/2052-19-0x0000000074470000-0x0000000074B5E000-memory.dmp

        Filesize

        6.9MB

      • memory/2052-35-0x0000000074470000-0x0000000074B5E000-memory.dmp

        Filesize

        6.9MB

      • memory/2052-21-0x0000000004A90000-0x0000000004AD0000-memory.dmp

        Filesize

        256KB

      • memory/2052-20-0x0000000000970000-0x00000000009C4000-memory.dmp

        Filesize

        336KB

      • memory/2192-77-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-1230-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-7-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-8-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-9-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-10-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-11-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2192-14-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-6-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-16-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-18-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-1268-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-85-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-197-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-205-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-86-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-46-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-47-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-48-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-50-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-54-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-55-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-57-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-104-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-88-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2192-84-0x0000000000400000-0x0000000000413000-memory.dmp

        Filesize

        76KB

      • memory/2256-17-0x00000000744C0000-0x0000000074BAE000-memory.dmp

        Filesize

        6.9MB

      • memory/2256-1-0x00000000744C0000-0x0000000074BAE000-memory.dmp

        Filesize

        6.9MB

      • memory/2256-0-0x0000000000970000-0x00000000009C4000-memory.dmp

        Filesize

        336KB

      • memory/2256-2-0x0000000000250000-0x0000000000296000-memory.dmp

        Filesize

        280KB

      • memory/2256-3-0x00000000005D0000-0x0000000000610000-memory.dmp

        Filesize

        256KB

      • memory/2256-4-0x0000000000580000-0x00000000005B4000-memory.dmp

        Filesize

        208KB

      • memory/2256-5-0x0000000000B60000-0x0000000000BAC000-memory.dmp

        Filesize

        304KB

      • memory/2640-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB