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Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 02:16

General

  • Target

    c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe

  • Size

    64KB

  • MD5

    c8166b3dcb9ca45300ca5f4a723b9358

  • SHA1

    5c35089685ac5b5e8373ab3e26f5540f378e559c

  • SHA256

    09e7779f5a97fe24365c3f2110b80a3a19af8ab8d7d2016ac3fdb5bd6314828d

  • SHA512

    1603c1f707bf9f98943fbc3a585d7620ad5a7e7f8e7fe8768749b21839fbc151993e37682dd74b650269a7e81a9920bec1f103e4035417dcdcad05ace74cc59e

  • SSDEEP

    1536:JMhh3AQR7cyKrstZp1htYeK3N0pdbh4voasnth5:JMfKOptYR3NCdbh4voasn5

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 6 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c8166b3dcb9ca45300ca5f4a723b9358_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Windows\outlook.exe
      C:\Windows\outlook.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      PID:3476
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3476 -s 29880
        3⤵
        • Program crash
        PID:4404
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3776 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3476 -ip 3476
      1⤵
        PID:3244

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\outlook.cfg

        Filesize

        2KB

        MD5

        e0032d780dbe33f09e7f6a38c1eae4d7

        SHA1

        7a7f749e028527082c22bae2c48a945425b7250b

        SHA256

        5c8ae3629b4247167d221699f7f674f600299979f431fa66d3632f9e584e2bb1

        SHA512

        2a4eb80f8ef257935ee4f597ef2f32ab82d7bb35904cceea34a06a6c9dd2a3cd04240eefab470853ffa6ef710bde631ca6e5f03af7f1234d07f0f170e0a45dda

      • C:\Windows\outlook.cfg

        Filesize

        753B

        MD5

        d33299d1ca190583b407efafafc9010e

        SHA1

        951ec5fcb2fc42b7f0cb734e3125e1962f6dd70c

        SHA256

        379652c6c163bbec50bee1d96e2ae1bd0f017741a94f746a74435389f01b9b9b

        SHA512

        3fc3720d7d3f28de7e63c9a81deed1369f17a1436f3cff40578543da6e940da90a20dc7c951c39c2404a73d85c7ddfe623b1e91fa42c40413134125427b3e504

      • C:\Windows\outlook.cfg

        Filesize

        1KB

        MD5

        7eedd08ae4bb030faae3650130328321

        SHA1

        3257c3d2e018dd23434b48e3c0767b3e179e25ff

        SHA256

        139ffc13f5821ce54b8df2d099e279ebeca14ab73c4ce2438082319645067bc6

        SHA512

        2ca7fab65db2486275c680a6af6e450b6b084a558ba048c6d0966846fc14e6a1878613034474991130bc74ae0d41eea3b5cbf4aecb2a278739a5971d513d6117

      • C:\Windows\outlook.cfg

        Filesize

        1KB

        MD5

        b577a9e200605035fb3f92a156cd7312

        SHA1

        6a0f2b9d55a2b97cbdf6ea8842d4fdc1559131a1

        SHA256

        16385d1223698daa43548de5cc64b3c233016f622b7debac1445356c82da3269

        SHA512

        45c23bb9ca11b3e2f091b93ad69992a575462bf720a406ee1f7634643ee87bae991bfe0e5b37937a06407b912eef859e93300a87f52ebfff1e70ebf4a774d066

      • C:\Windows\outlook.exe

        Filesize

        49KB

        MD5

        0e9379e357aba95f8b9883af9b67675e

        SHA1

        280a174a414e5b8588f42b6328af2c8c8ff4394f

        SHA256

        96b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28

        SHA512

        6cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784

      • memory/2824-8-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/2824-0-0x0000000000400000-0x000000000040C000-memory.dmp

        Filesize

        48KB

      • memory/3476-82-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB

      • memory/3476-83-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB

      • memory/3476-101-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB

      • memory/3476-107-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB

      • memory/3476-16-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB

      • memory/3476-122-0x0000000000400000-0x000000000047E000-memory.dmp

        Filesize

        504KB