Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2024 01:18

General

  • Target

    bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    bb118ab611fb84b954cca29f66fc1c0e

  • SHA1

    1ea056e2024147528dbf46096a0de9faf07f66cb

  • SHA256

    1fa9bed9d75dc028cbd7981fa4152a58a5762deb1a9b67a1d7ea9b8f3fbaf2a3

  • SHA512

    b1262aa2bb9439ad697966bf4408e34d7ab98280313a68627a7df9c202f839b17f4e3868ff7a03e8ea76592d5757f6b1a57344852f5f6cb5d8ea5963a4fff514

  • SSDEEP

    12288:vl8teodM4fNDVbUs2yxeNdnSM7JrPjwIbSHPLo+DwgYJqwhSw42FhIbIGKxnqGi6:9SMpj92vU1gYJq4seqG9vjiTrsb

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • DCRat payload 6 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Users\Admin\AppData\Local\Temp\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe
      "{path}"
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "wininit" /sc ONLOGON /tr "'C:\Recovery\480d7142-91a3-11ef-b9f6-6e5a89f5a3c7\wininit.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2660
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "spoolsv" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\spoolsv.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2740
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\tracing\csrss.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2232
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Reference Assemblies\explorer.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1340
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Idle" /sc ONLOGON /tr "'C:\PerfLogs\Admin\Idle.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2956
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118" /sc ONLOGON /tr "'C:\Users\Admin\Desktop\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe'" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1344
      • C:\Users\Admin\Desktop\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe
        "C:\Users\Admin\Desktop\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2732
        • C:\Users\Admin\Desktop\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe
          "{path}"
          4⤵
          • Executes dropped EXE
          PID:2184
        • C:\Users\Admin\Desktop\bb118ab611fb84b954cca29f66fc1c0e_JaffaCakes118.exe
          "{path}"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\PerfLogs\Admin\Idle.exe

    Filesize

    1.1MB

    MD5

    bb118ab611fb84b954cca29f66fc1c0e

    SHA1

    1ea056e2024147528dbf46096a0de9faf07f66cb

    SHA256

    1fa9bed9d75dc028cbd7981fa4152a58a5762deb1a9b67a1d7ea9b8f3fbaf2a3

    SHA512

    b1262aa2bb9439ad697966bf4408e34d7ab98280313a68627a7df9c202f839b17f4e3868ff7a03e8ea76592d5757f6b1a57344852f5f6cb5d8ea5963a4fff514

  • memory/320-18-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/320-20-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/320-8-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-9-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-38-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/320-17-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-15-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-13-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-7-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-10-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-6-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/320-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2108-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2616-3-0x0000000000250000-0x0000000000262000-memory.dmp

    Filesize

    72KB

  • memory/2616-0-0x000000007426E000-0x000000007426F000-memory.dmp

    Filesize

    4KB

  • memory/2616-19-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-2-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-1-0x0000000000EA0000-0x0000000000FB8000-memory.dmp

    Filesize

    1.1MB

  • memory/2616-5-0x0000000004E70000-0x0000000004F04000-memory.dmp

    Filesize

    592KB

  • memory/2616-4-0x0000000074260000-0x000000007494E000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-39-0x0000000000230000-0x0000000000348000-memory.dmp

    Filesize

    1.1MB

  • memory/2732-40-0x0000000000550000-0x0000000000562000-memory.dmp

    Filesize

    72KB