Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2024 19:01

General

  • Target

    VirusShare_0046337f34a88489c08cb37dd90dc2de.exe

  • Size

    1.4MB

  • MD5

    0046337f34a88489c08cb37dd90dc2de

  • SHA1

    4e5e05eca8bdcbf7a2bfd41ba5a2cfa2d4e0408c

  • SHA256

    ff1190c2f302175cb3f41a5d3f35dd3b3a46dacff431b6c3c9a601358d1c8ce9

  • SHA512

    714d2b23aca8f94f8e76853326bfc9f09acdcd80793f5af2fa8a41aee0d4ed7c23aa6fd388aeb6c64bc81a8760a7c04720c3c23200dea8e394befc28ac75cf6b

  • SSDEEP

    12288:I1hL6GGiwn2UpXpgX+3W/4M5H0IUf9FECN3X4qHWXD09rUw7myAIT2+meAMLNzka:6t7Up4wQaHWX3yAQDAmzxR

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

  • Renames multiple (2014) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • 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 Program Files directory 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusShare_0046337f34a88489c08cb37dd90dc2de.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusShare_0046337f34a88489c08cb37dd90dc2de.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\VirusShare_0046337f34a88489c08cb37dd90dc2de.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      PID:3056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\jre\lib\images\cursors\invalid32x32.gif.fun

    Filesize

    160B

    MD5

    580ee0344b7da2786da6a433a1e84893

    SHA1

    60f8c4dd5457e9834f5402cb326b1a2d3ca0ba7e

    SHA256

    98b6c2ddfefc628d03ceaef9d69688674a6bc32eb707f9ed86bc8c75675c4513

    SHA512

    356d2cdea3321e894b5b46ad1ea24c0e3c8be8e3c454b5bd300b7340cbb454e71fc89ca09ea0785b373b483e67c2f6f6bb408e489b0de4ff82d5ed69a75613ba

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe

    Filesize

    1.4MB

    MD5

    0046337f34a88489c08cb37dd90dc2de

    SHA1

    4e5e05eca8bdcbf7a2bfd41ba5a2cfa2d4e0408c

    SHA256

    ff1190c2f302175cb3f41a5d3f35dd3b3a46dacff431b6c3c9a601358d1c8ce9

    SHA512

    714d2b23aca8f94f8e76853326bfc9f09acdcd80793f5af2fa8a41aee0d4ed7c23aa6fd388aeb6c64bc81a8760a7c04720c3c23200dea8e394befc28ac75cf6b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\container.dat.fun

    Filesize

    16B

    MD5

    8ebcc5ca5ac09a09376801ecdd6f3792

    SHA1

    81187142b138e0245d5d0bc511f7c46c30df3e14

    SHA256

    619e246fc0ac11320ff9e322a979948d949494b0c18217f4d794e1b398818880

    SHA512

    cec50bfc6ad2f57f16da99459f40f2d424c6d5691685fa1053284f46c8c8c8a975d7bcb1f3521c4f3fbdc310cf4714e29404aa23be6021e2e267c97b090dc650

  • memory/1720-1-0x00000000005F0000-0x000000000063A000-memory.dmp

    Filesize

    296KB

  • memory/1720-4-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/1720-0-0x000007FEF54BE000-0x000007FEF54BF000-memory.dmp

    Filesize

    4KB

  • memory/1720-11-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/1720-13-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-10-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-253-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-254-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-255-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-9-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-12-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-2038-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB

  • memory/3056-2041-0x000007FEF5200000-0x000007FEF5B9D000-memory.dmp

    Filesize

    9.6MB