Analysis

  • max time kernel
    100s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2024, 07:47

General

  • Target

    21966b15bbb4957362df4553e5d9c342_JaffaCakes118.exe

  • Size

    502KB

  • MD5

    21966b15bbb4957362df4553e5d9c342

  • SHA1

    7f7fac5c779f1533ecab9b7642f5b773ec7effc7

  • SHA256

    d2d4bd955a4207b39aee701613f9b28773d6e643842b100c7052825e82c7a47e

  • SHA512

    42940fab792ce9fc669d3826b31d2f9fb34e2864c133d5230c703b1af601afe0e2cd8beaf90390bec8a2bcde802ca957c1e0715736eb485856bccc313591e697

  • SSDEEP

    6144:Lp/bGrl1gl2y54R5k0gfNqQZatB1VzVYPjgxajb1DKr0qFdF+KjZaQMIhL:Lp/ul1glRuO8AatFzVYPjNjZKTFdx

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 6 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 56 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21966b15bbb4957362df4553e5d9c342_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\21966b15bbb4957362df4553e5d9c342_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Windows\Lcojia.exe
      C:\Windows\Lcojia.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:2060
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 996
        3⤵
        • Program crash
        PID:57320
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2060 -ip 2060
    1⤵
      PID:57192

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\Lcojia.exe

      Filesize

      502KB

      MD5

      21966b15bbb4957362df4553e5d9c342

      SHA1

      7f7fac5c779f1533ecab9b7642f5b773ec7effc7

      SHA256

      d2d4bd955a4207b39aee701613f9b28773d6e643842b100c7052825e82c7a47e

      SHA512

      42940fab792ce9fc669d3826b31d2f9fb34e2864c133d5230c703b1af601afe0e2cd8beaf90390bec8a2bcde802ca957c1e0715736eb485856bccc313591e697

    • C:\Windows\Tasks\{35DC3473-A719-4d14-B7C1-FD326CA84A0C}.job

      Filesize

      390B

      MD5

      53d216e8ac478d9943d83505f9202d65

      SHA1

      ecd4e5dfd35e4a5ac918ac3bd4ec35c82aa67401

      SHA256

      5d242361dfc98598b62876d45bf3382f16506ce9f7eff4633ab50057bbc276ad

      SHA512

      2ba4163640d9c8c3308280c8ab578a76e2db9b97c95dec247fb427396bdff99d6a76531bac1e478755543bb303a8caee4a2123247a2471f00fb8acaa16e93c8c

    • memory/2060-15-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2060-20-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/2060-24-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/2060-80978-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3940-2-0x00000000008F0000-0x00000000008F1000-memory.dmp

      Filesize

      4KB

    • memory/3940-5-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3940-7-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/3940-6-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/3940-1-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/3940-0-0x0000000000400000-0x000000000047F000-memory.dmp

      Filesize

      508KB

    • memory/3940-80972-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB