Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-06-2024 23:11

General

  • Target

    0b2d88e02b879c09b5a615cf670e592a_JaffaCakes118.exe

  • Size

    42KB

  • MD5

    0b2d88e02b879c09b5a615cf670e592a

  • SHA1

    156dea84ee8b56c8e45459358d54f41be0876fb8

  • SHA256

    db94bfc9678d07f1c93a7880fdbdda84aa61193500fc0824803d583b637bef2d

  • SHA512

    89035bffb6c7a7971ea231f36b9f0fdae644c52e822a3288cb42d47332e25e55fe88cf576064875aa8f3b701862b21d09b2f251260bc6021df1712c126906f71

  • SSDEEP

    768:5sGgkgs9PuO7wd/xAfCK3j/7ZEEALZGXwnvN5BMCt:5sLs9uOEdcCK3z7ZEE6GXwl5R

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 16 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 8 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 8 IoCs
  • Adds policy Run key to start application 2 TTPs 18 IoCs
  • Disables RegEdit via registry modification 8 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Adds Run key to start application 2 TTPs 16 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Windows directory 35 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Discovers systems in the same network 1 TTPs 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b2d88e02b879c09b5a615cf670e592a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0b2d88e02b879c09b5a615cf670e592a_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds policy Run key to start application
    • Disables RegEdit via registry modification
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Windows\SysWOW64\s4827\smss.exe
      "C:\Windows\system32\s4827\smss.exe" ~Brontok~Log~
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:3528
      • C:\Windows\SysWOW64\s4827\winlogon.exe
        "C:\Windows\system32\s4827\winlogon.exe" ~Brontok~Is~The~Best~
        3⤵
        • Modifies WinLogon for persistence
        • Modifies visibility of file extensions in Explorer
        • Modifies visiblity of hidden/system files in Explorer
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1884
        • C:\Windows\SysWOW64\s4827\services.exe
          "C:\Windows\system32\s4827\services.exe" ~Brontok~Serv~
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Adds policy Run key to start application
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          PID:548
        • C:\Windows\SysWOW64\s4827\csrss.exe
          "C:\Windows\system32\s4827\csrss.exe" ~Brontok~SpreadMail~
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Adds policy Run key to start application
          • Disables RegEdit via registry modification
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          PID:3016
        • C:\Windows\SysWOW64\s4827\lsass.exe
          "C:\Windows\system32\s4827\lsass.exe" ~Brontok~Network~
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Adds policy Run key to start application
          • Disables RegEdit via registry modification
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • Enumerates connected drives
          • Drops file in System32 directory
          • Drops file in Windows directory
          • Suspicious use of WriteProcessMemory
          PID:4592
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c net view /domain > "C:\Windows\system32\s4827\domlist.txt"
            5⤵
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:2632
            • C:\Windows\SysWOW64\net.exe
              net view /domain
              6⤵
              • Discovers systems in the same network
              PID:1432
        • C:\Windows\Ad10218\qm4623.exe
          "C:\Windows\Ad10218\qm4623.exe" ~Brontok~Back~Log~
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Adds policy Run key to start application
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          PID:4604
        • C:\Windows\SysWOW64\s4827\m4623.exe
          "C:\Windows\system32\s4827\m4623.exe" ~Brontok~Back~Log~
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Adds policy Run key to start application
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Drops file in Windows directory
          PID:1336
        • C:\Windows\SysWOW64\at.exe
          "C:\Windows\System32\at.exe" /delete /y
          4⤵
            PID:3636
          • C:\Windows\SysWOW64\at.exe
            "C:\Windows\System32\at.exe" 17:08 /every:M,T,W,Th,F,S,Su "C:\Users\Admin\AppData\Local\jalak-93927015-bali.com"
            4⤵
              PID:1116
            • C:\Windows\SysWOW64\at.exe
              "C:\Windows\System32\at.exe" 11:03 /every:M,T,W,Th,F,S,Su "C:\Users\Admin\AppData\Local\jalak-93927015-bali.com"
              4⤵
                PID:752

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\Ad10218\qm4623.exe

          Filesize

          42KB

          MD5

          b8ad1afd339f63ded784b3a4633c5ea6

          SHA1

          408b7d255b05b21f18e5ba0033877ac3ae399d13

          SHA256

          534caeaccf2949a0c1cc5b787ae59b0ed7b3e564676a77f4400deca688d2f03c

          SHA512

          6565e02cf2d8f4fda0f634acdb43d1465bbcb5924af18eb7124f57921a2065dc9f04b5be12446bbed03cab0960a57341c70bea184d7180c597ef27751634d5f1

        • C:\Windows\SysWOW64\c_31602k.com

          Filesize

          42KB

          MD5

          0b2d88e02b879c09b5a615cf670e592a

          SHA1

          156dea84ee8b56c8e45459358d54f41be0876fb8

          SHA256

          db94bfc9678d07f1c93a7880fdbdda84aa61193500fc0824803d583b637bef2d

          SHA512

          89035bffb6c7a7971ea231f36b9f0fdae644c52e822a3288cb42d47332e25e55fe88cf576064875aa8f3b701862b21d09b2f251260bc6021df1712c126906f71

        • C:\Windows\SysWOW64\s4827\lsass.exe

          Filesize

          42KB

          MD5

          9d0fdab2cf04b4546ce975a03ddb2eaf

          SHA1

          c0cb61e8d947f031226b98a015a509c65516b7f2

          SHA256

          d842bd8dc8a70ce6498709d76e1d7504e54dd4b7715262de2c1b44c4f4d4c163

          SHA512

          04f995169647416fbb6525e0ee2a51fb8bbf0b74d801f5020165fdaf797b61edcd0fdb028f558cf39ffad738d45093cf10738403ac69c9388ba52d5cccd1e5a0

        • C:\Windows\SysWOW64\s4827\m4623.exe

          Filesize

          42KB

          MD5

          56b454c52491455920092de36f23c236

          SHA1

          7326ab2ece261b2bde81b327963bae4c87b7ec95

          SHA256

          c6dfb2147178384a5ec8f2d5f92c0f1456c73852a3f4db58a750edbf5d79406f

          SHA512

          2e0ef8d3cf02e14c138ae6adebe29ee0d9dd094834a2769947283611574fdba5aae156d0126d5c2da9d582b804c117cbb51cb0b0c2609948e16ac81273470c8b

        • C:\Windows\SysWOW64\s4827\winlogon.exe

          Filesize

          42KB

          MD5

          80f31d2fe20931aefb069b31be9066ee

          SHA1

          f80fa6da3c85e8a21e6bf6cf5a75b2a79bfb0dea

          SHA256

          2c6ec25499787ec03bd74983e8a5147fa080e6ea068045a7d1a7a7ad58500ccc

          SHA512

          ddb941a96ebb3d6c5abd749eb8276b46e52c82c18326d94b2183d785ad141eaf83b9d508ca9e35d942058d0aa37414398a3580d2bfc5a9ef800af36794261cb9

        • memory/548-1088-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-1212-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-1296-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-713-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-628-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-519-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-810-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-918-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-336-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/548-1004-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-342-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-1008-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-633-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-923-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-426-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-814-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-523-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-1105-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-148-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-717-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1336-1216-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1492-0-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1492-45-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-335-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-712-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-72-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-1256-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-627-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-796-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-1087-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-1003-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-505-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-880-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-1172-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/1884-421-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/3016-339-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/3528-170-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4592-340-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4592-132-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-813-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-1007-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-341-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-1104-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-922-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-425-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-140-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-1215-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-522-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-716-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB

        • memory/4604-631-0x0000000000400000-0x000000000041A040-memory.dmp

          Filesize

          104KB