Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 01:39

General

  • Target

    8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe

  • Size

    3.0MB

  • MD5

    8c7d811fbbf83e6dcb7a717a8b3cc973

  • SHA1

    9e03796094a40893c397cfe55067235f49984af0

  • SHA256

    20880bb6f71040cecbb2d9a79c3071f5fea80c50d35cbcf9f0e5783461adc893

  • SHA512

    cbc7f005613349ef0a646051d9263982ad07a74405ae1a4b008327ebf1ecd93b93a30314ed31c7e0d786f9908633305f9032f75d6aba93d894f201a037601d16

  • SSDEEP

    49152:20PbK4oFm2qZqN6Ck6kTxCTcHHjNIbLRVm54TUxTcHHjNIbL:209ZqUCFM5jeBVUIje

Malware Config

Signatures

  • UAC bypass 3 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8c7d811fbbf83e6dcb7a717a8b3cc973_JaffaCakes118.exe"
    1⤵
    • UAC bypass
    • Checks whether UAC is enabled
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1372
    • C:\Windows\mmodyaox\znsaaaa.exe
      C:\Windows\mmodyaox\znsaaaa.exe
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3900
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c "C:\Windows\PLA\userplus.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4440
        • C:\Windows\PLA\userplus.exe
          C:\Windows\PLA\userplus.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:2604

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Config.ini

          Filesize

          1KB

          MD5

          d2daea27ed35c95855500b083fbb9401

          SHA1

          6b46107eca4365f90a3f2e86fbe89fc92dd8e575

          SHA256

          b455afa508f6e005c3111dfd599348e1b64d7a2215e3970eb888dfd740640696

          SHA512

          663c79911de565f8a3eae1ff7a340a1c564d8b2bd6e89df47a5c6d7dc2b707077a1c21304338ac908c7dfb21d90e09764141fd927d985329f059cbe9665515c6

        • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-540404634-651139247-2967210625-1000\3310a4fa6cb9c60504498d7eea986fc2_41e50f4a-4a76-42e1-a3df-51306e426307

          Filesize

          50B

          MD5

          45218adff3ea5bde8a8f61987f0f458b

          SHA1

          cf7fffa410795cc2f7703755f0acd17b51a44ad7

          SHA256

          f95361b82464704675f559b13c007c9567e5914984042f537122383e747194d4

          SHA512

          8442cac48931075ec5bd31ea82faffc4f64d7b6845d5c477d06fc3d7eefeac1fa366b6880a85709a520a343b5dd3771e69bc4b7482cde50e69e04215927a2018

        • C:\Windows\PLA\userplus.exe

          Filesize

          215KB

          MD5

          ba44267754b92c5afeb5ec2df0c5876f

          SHA1

          55b402f471cc6330cf92ca8ed15f40f5e6a5b0a5

          SHA256

          a0b260886f386461d170f8c150038ccfa7a2a21543312c0acdce835f87474877

          SHA512

          a4dff971570c05d5a54419b6186796fc15e1fc888a460a4d53c1b5c43e0bcf499f16fa30aa6e795b0ee1d6d521b5267e705087fb61ea59ffaf27e1e41adb003b

        • C:\Windows\mmodyaox\conf.ini

          Filesize

          4KB

          MD5

          9ca8e9158e2cd31e6756c86265ff89de

          SHA1

          f0747b4b325833c743c5ed799d8a94ee7a043429

          SHA256

          029afa1b15c77ae61a2ec68c66ffd439ca7d4687fa4c968a746c756d895532b6

          SHA512

          6becdda182d7f4a2252b548220159eb5300904b5c6eef598b3e7c442808080d5e686fced68f83f1762a904b3227669f82b3196538ab569762ff5560e22e2801e

        • C:\Windows\mmodyaox\znsaaaa.exe

          Filesize

          1.2MB

          MD5

          5243fa11db5e0f7ab6bdbc4243fedd2a

          SHA1

          22709d5eb3b82412220d94fcbc2086230b578edc

          SHA256

          4b59b435e6be9d2c8d15237f285e5d163b5a8aae0fd07378fa85f38237c23d8b

          SHA512

          23cb4e45d5293c407dfc4f3b0a9b2874608d7efe076606ab06194114f6571902b4336ce07f80ac98f0d12221fdb2261fd35b35bbc02fe614fc20c3544e853ebd

        • C:\Windows\system32\NlsLexicons00mmx.dll

          Filesize

          100KB

          MD5

          ca43974f638606af7259397a344e0434

          SHA1

          02b7cf6e2a7fd77f619e27c7584180a950aa7fe8

          SHA256

          4f394c128557a3f05c817aae8ddd005e2f462b298b858b1d49277fe574ce6752

          SHA512

          ab986229c156f1404895983399c64513cc13be3083309b9b61413024922fbf3322e203184e19bb5090c78b813a28362d345a1cb229e61e67d91dd803512a4786

        • C:\Windows\system32\NlsLexicons00ssx.dll

          Filesize

          67KB

          MD5

          b1a562ae50903a943e6e0884a7c3aa28

          SHA1

          57fcd5de222c7f99bd82372056127841fbc80e6e

          SHA256

          8402155eb3a3fb0fdc7ce7bbea87e8a59d81ae03e46d5d2ff041663d7051d3fc

          SHA512

          a1b7bcce916e80c2cf83029471f665bb0dfe411341c1817a0a3b0bdc758f24a45676b2b000890578320cbb6c4457ed23535188cff2d7fddcacedebcd8a414dab

        • memory/2604-173-0x00007FFA72B60000-0x00007FFA72B70000-memory.dmp

          Filesize

          64KB

        • memory/2604-177-0x00007FFA72C0D000-0x00007FFA72C0E000-memory.dmp

          Filesize

          4KB

        • memory/2604-178-0x00007FFA72B70000-0x00007FFA72D65000-memory.dmp

          Filesize

          2.0MB