Analysis

  • max time kernel
    1561s
  • max time network
    1562s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 02:21

General

  • Target

    3bb691982de416a7a4e57b91211e80bea82dcca7b4bdbf25c0c80451dc138421.exe

  • Size

    205KB

  • MD5

    458c1cbd0ff849119214e739d8815f37

  • SHA1

    64d26b1614693f15bed6bd4f4d2a6a35b2c4bc9f

  • SHA256

    3bb691982de416a7a4e57b91211e80bea82dcca7b4bdbf25c0c80451dc138421

  • SHA512

    695f17ca034f7c894bb87bf04db20a2387f144ade77188f497870d3711d0871c721b86327769cd393366b162229ad649671e111aa5b5b80d676156f47ededd08

  • SSDEEP

    6144:JJOIZvsEy+fDjKSGXwLfjFU/coiqilMi:JJOIKEy+ffKerjFtoiLMi

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • 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.

  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bb691982de416a7a4e57b91211e80bea82dcca7b4bdbf25c0c80451dc138421.exe
    "C:\Users\Admin\AppData\Local\Temp\3bb691982de416a7a4e57b91211e80bea82dcca7b4bdbf25c0c80451dc138421.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2040
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2060
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2020
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:960
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1584
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3752
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2268
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\How to decrypt your files.txt
        1⤵
          PID:2100

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\Desktop\How to decrypt your files.txt

          Filesize

          104B

          MD5

          345aa809196e43846d3be562321035e9

          SHA1

          624c20e8a089e629d3e34805acdb27a3bbdfb435

          SHA256

          63b05c53c2e2653c2c41f11277d6d37f21d4c18164a07e1b52d66542a826635d

          SHA512

          e6ba70c0e8abe82594d38064a58a111fcd338111351264a20d1184cf205f6cd2a7fbda335630012e450d604f202d0eaecc7d1090eedbeb8ed49e13ffc5102766