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Analysis

  • max time kernel
    120s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 18:04

General

  • Target

    40f43363b314535479d5e7accb80d1daa364de7370f4d23e108b8346450e40c3N.exe

  • Size

    62KB

  • MD5

    c72f32078c5f064f491a66614f01f1c0

  • SHA1

    91ac450f835b162c9d5acf4f7d57facbe61c7593

  • SHA256

    40f43363b314535479d5e7accb80d1daa364de7370f4d23e108b8346450e40c3

  • SHA512

    0521007872b5ab284ac503f714830e4e945968bb80e0325ada8c60ff1c7cbe0c56223c3bcb36ea40b8635685bcf5ebcfffc6aa9ccac87d20a879eb599f6cd74d

  • SSDEEP

    1536:V7Zf/FAxTWoJJZENTBAOIfmKJfmKMTNT9:fny1tE7

Malware Config

Signatures

  • Renames multiple (4654) 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\40f43363b314535479d5e7accb80d1daa364de7370f4d23e108b8346450e40c3N.exe
    "C:\Users\Admin\AppData\Local\Temp\40f43363b314535479d5e7accb80d1daa364de7370f4d23e108b8346450e40c3N.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    PID:3144

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-945322488-2060912225-3527527000-1000\desktop.ini.tmp

    Filesize

    62KB

    MD5

    e0f138864c2f05ff3306b3d7404310cb

    SHA1

    778e8bbffed5b818d862b8e03d899b03b397adcb

    SHA256

    7b99028635eb353663ae6807a8e8053fdaa4f9c31b4924072de8d86ca013c2d3

    SHA512

    6e7f717758967ebe2f92c056e6fecfa80edfc76ca9bd0c10b883d92b1742dcac787ee9b4dcc502419a51e4a2b76bb2bdf566a8817b808c30afb2f014ddb20d3c

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

    Filesize

    161KB

    MD5

    340d5f6f058322b2fae9e9dd6013207b

    SHA1

    66c54eef7fa074707886d377b807c5a092c75278

    SHA256

    9840b25fac26127413b1771e0b27c04853e69ff4c6d4983c7b56f30d2a8c3ee4

    SHA512

    bc14a39ce71d6adabc959e9dff38f618071b40262b57d71abfae69ba2bcfac5ed5b2b1c80fc9b0d3712ba698f237817f6b0b9b0f0a9cbd0d8d7f584d7708cb52

  • memory/3144-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3144-914-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB