Analysis

  • max time kernel
    144s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 20:55

General

  • Target

    dfa7a2d95a5fe8820b0bc61c4d687da804446c222dd30e4b7c9f379c531ce60f.exe

  • Size

    108KB

  • MD5

    72686c1e9b00ec1e980bc2eb58677ca1

  • SHA1

    93636eb6cdab3fbf0ddb212077ea1484c094f70b

  • SHA256

    dfa7a2d95a5fe8820b0bc61c4d687da804446c222dd30e4b7c9f379c531ce60f

  • SHA512

    a522b0258cae030f52bb9ff4c334d5c793807f0041adbb87e98c14e7f1b954a8dd9c833ce62328df30fdeb0c197eebb2ae375b821e63f64f227701d041c290a2

  • SSDEEP

    1536:fO2KDNAPWr/0O8/obeGuXZlZXWYvsR+79dj5V4huWoa:RKDNgWN8/obpR+Hj5ihuPa

Malware Config

Signatures

  • Nitro

    A ransomware that demands Discord nitro gift codes to decrypt files.

  • Nitro family
  • Renames multiple (83) files with added filename extension

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

  • 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) 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 6 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfa7a2d95a5fe8820b0bc61c4d687da804446c222dd30e4b7c9f379c531ce60f.exe
    "C:\Users\Admin\AppData\Local\Temp\dfa7a2d95a5fe8820b0bc61c4d687da804446c222dd30e4b7c9f379c531ce60f.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2920
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic csproduct get uuid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1960-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

    Filesize

    4KB

  • memory/1960-1-0x0000000000A60000-0x0000000000A82000-memory.dmp

    Filesize

    136KB

  • memory/1960-2-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB

  • memory/1960-16-0x00000000743DE000-0x00000000743DF000-memory.dmp

    Filesize

    4KB

  • memory/1960-19-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB

  • memory/1960-91-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB

  • memory/1960-92-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB