Analysis

  • max time kernel
    119s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2024, 20:00

General

  • Target

    ef0e45386099ac22d091da175ab13238372fac83448424046d64eb535349e7d0N.exe

  • Size

    36KB

  • MD5

    3d1869a0c38b13e8e469225bf6098110

  • SHA1

    bd6dab87cc7f33e86b19548e45ecc5a8f66e767e

  • SHA256

    ef0e45386099ac22d091da175ab13238372fac83448424046d64eb535349e7d0

  • SHA512

    2912b639aa84e184c49497842585195765d9376f3965ee0eec32e96cbd69d1e6e77eab2299b5ceaaef14c302c5af0c6c80e9e79d0b8362a7972dc05998068279

  • SSDEEP

    768:kBT37CPKKdJJ1EXBwzEXBwdcMcwBcCBcw/tio/titPdP6:CTW7JJ7TTQoQtFS

Malware Config

Signatures

  • Renames multiple (4679) files with added filename extension

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

  • UPX packed file 4 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef0e45386099ac22d091da175ab13238372fac83448424046d64eb535349e7d0N.exe
    "C:\Users\Admin\AppData\Local\Temp\ef0e45386099ac22d091da175ab13238372fac83448424046d64eb535349e7d0N.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:5004

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\$Recycle.Bin\S-1-5-21-1194130065-3471212556-1656947724-1000\desktop.ini.tmp

          Filesize

          36KB

          MD5

          1ededc64b20453c8a9d758e78f0fc1a2

          SHA1

          5eb5bc65b4dc4e89f281dc31d7c3e9dc5d5ec4d2

          SHA256

          ccd2b4330d587093290f9e3d26768d5f81fca996aa1eb68d170af1dc9d3cb3c8

          SHA512

          7dca2888d173f81164dc5aa01e4b7c03f364e3dd5df4c8d71e4ecde58faf847a45428626c0d4bb9911efb21b925c52497225e52f1f4eed3db539391d94174985

        • C:\Program Files\7-Zip\7-zip.dll.tmp

          Filesize

          135KB

          MD5

          ca799e92256895d17856b85b67ae5446

          SHA1

          cb1cb52b8710f172e66de33f8ddbf7249a61c5a1

          SHA256

          894c7b43d71753a4f42359671a708fd81458e938ab55f0ad221ac13ca38eb142

          SHA512

          1b3091093e06d1a80ab004dd3d4c5020755c366cf0f1ac7604ca349d56d02404daefdfa0da795f642ee560bfd9879bef882f68a285f464a419cd1d65802a0065

        • memory/5004-0-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB

        • memory/5004-1013-0x0000000000400000-0x000000000040A000-memory.dmp

          Filesize

          40KB