Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 06:12

General

  • Target

    0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe

  • Size

    1.3MB

  • MD5

    0941a59548b4f95082dfa17f85c6557c

  • SHA1

    d6edc9316356ee3748e3de70d3d59dcb95b34de2

  • SHA256

    b2beeab94f7cbc38143e2a050c263476419bb48d2ec37470df5b1ee0da812f50

  • SHA512

    f2d06f72fbb8dc090b019d012bfe6759a194f7eeb0620f8e0082566f05d206856ec0459a2ac520a11b74d5d4cc87105128d0f86f5583180bdc3f53ec55436450

  • SSDEEP

    24576:Sr4IPzH6WoE6+a0m+saUGENr8tG5BuPKboy9Ig:S0wLtoJ+sa7ENwEJ0y97

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies registry class 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:216
    • C:\Users\Admin\AppData\Local\Temp\3582-490\0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe"
      2⤵
      • Looks for VirtualBox Guest Additions in registry
      • Looks for VMWare Tools registry key
      • Checks BIOS information in registry
      • Checks computer location settings
      • Executes dropped EXE
      • Maps connected drives based on registry
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2368
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TfIdAJRB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1131.tmp"
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2960
        • C:\Windows\SysWOW64\schtasks.exe
          C:\Windows\System32\schtasks.exe /Create /TN Updates\TfIdAJRB /XML C:\Users\Admin\AppData\Local\Temp\tmp1131.tmp
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2632
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        3⤵
          PID:3392
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          3⤵
            PID:4272
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
            3⤵
              PID:4964
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
              3⤵
                PID:2720
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
                3⤵
                  PID:1600

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

              Filesize

              86KB

              MD5

              3b73078a714bf61d1c19ebc3afc0e454

              SHA1

              9abeabd74613a2f533e2244c9ee6f967188e4e7e

              SHA256

              ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

              SHA512

              75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

            • C:\Users\Admin\AppData\Local\Temp\3582-490\0941a59548b4f95082dfa17f85c6557c_JaffaCakes118.exe

              Filesize

              1.3MB

              MD5

              e26af2a244212b5968c08fc2d69c6a36

              SHA1

              05ebc3d5e2e830861e989a80151ae6fcc8fae6d9

              SHA256

              525e5eb49b0ea6ab19afa284c6c5c5d09159d91821b71411a821831593d71ee5

              SHA512

              fccd04da36130fec7e80f92d12c22c9304bbcb29d8e7d04b919d3756a2ba9012ba1340cbba13c6b4b239c32949ab57fb34c24a8afe3eb9cafdd3d8de0a7d94b5

            • C:\Users\Admin\AppData\Local\Temp\tmp5023.tmp

              Filesize

              8B

              MD5

              225edac398ce96baf27a1735675d71fa

              SHA1

              f5770111e555097735ae28d7a64d36f1155678c7

              SHA256

              3f42646e86c4f038c4225355ad155092b08ce46ffdd9b810ed641dd3b4a26fac

              SHA512

              8b676db0e237122d14d4b7e8add510358f8717b32ba789806b607097d3128d8d7a9f302e167b7bb20e0f01abc6d8d7207e2341b5bcb0ef896eb885ef1163bd25

            • C:\Windows\svchost.com

              Filesize

              40KB

              MD5

              ea37a314334f54a5f6a72777057ca373

              SHA1

              4203c56c276e84e63249afad4087bf2d31163eee

              SHA256

              54c285c78a26459f2578d5f9fa639459f08abee6e8dec33e4474a37bab4859de

              SHA512

              e85de27a2decfca3313279b2a7b48ebef7b2b8c7a3ed799b08b5478d80b94fabd4f3c5ff3ea01c22fae4a0bcfd81e966f73e26e70cc3378337b57c1a52642082

            • memory/216-110-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB

            • memory/216-105-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB

            • memory/216-108-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB

            • memory/2368-107-0x0000000073660000-0x0000000073E10000-memory.dmp

              Filesize

              7.7MB

            • memory/2368-18-0x0000000007F30000-0x0000000007F86000-memory.dmp

              Filesize

              344KB

            • memory/2368-20-0x00000000082F0000-0x0000000008306000-memory.dmp

              Filesize

              88KB

            • memory/2368-15-0x00000000083A0000-0x0000000008944000-memory.dmp

              Filesize

              5.6MB

            • memory/2368-106-0x000000007366E000-0x000000007366F000-memory.dmp

              Filesize

              4KB

            • memory/2368-19-0x0000000073660000-0x0000000073E10000-memory.dmp

              Filesize

              7.7MB

            • memory/2368-16-0x0000000007E90000-0x0000000007F22000-memory.dmp

              Filesize

              584KB

            • memory/2368-17-0x00000000031F0000-0x00000000031FA000-memory.dmp

              Filesize

              40KB

            • memory/2368-14-0x0000000007D50000-0x0000000007DEC000-memory.dmp

              Filesize

              624KB

            • memory/2368-111-0x0000000009920000-0x00000000099FA000-memory.dmp

              Filesize

              872KB

            • memory/2368-112-0x0000000006A60000-0x0000000006AD8000-memory.dmp

              Filesize

              480KB

            • memory/2368-113-0x00000000059C0000-0x0000000005A26000-memory.dmp

              Filesize

              408KB

            • memory/2368-13-0x0000000000DE0000-0x0000000000F2A000-memory.dmp

              Filesize

              1.3MB

            • memory/2368-12-0x000000007366E000-0x000000007366F000-memory.dmp

              Filesize

              4KB

            • memory/2368-128-0x0000000073660000-0x0000000073E10000-memory.dmp

              Filesize

              7.7MB

            • memory/2960-125-0x0000000000400000-0x000000000041B000-memory.dmp

              Filesize

              108KB