Analysis

  • max time kernel
    44s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    12-02-2023 15:19

General

  • Target

    paint.net.5.0.1.install.anycpu.web.exe

  • Size

    1MB

  • MD5

    29d86c3800325e8db85d559a126958b0

  • SHA1

    6a06773bd7b76103c231dad8bb751d5db157c2e7

  • SHA256

    de7659f337aa53a731d4c89f5a331869327280325a52c80db11a5829686c09d0

  • SHA512

    5b9053151acfbf7584438fb1436fbbbc7ea07701c5d20e3ae9bac488252b0896cb18e9d5d4f5762a6282f60810400c5bc734598af0151f1594ad307cf95b2521

  • SSDEEP

    24576:HrYYYYkWYCzwLhA29pQyIbsIC0BuDgRtIyxwNJ:HrYYYYkvLhA29pmZDj0yxOJ

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\paint.net.5.0.1.install.anycpu.web.exe
    "C:\Users\Admin\AppData\Local\Temp\paint.net.5.0.1.install.anycpu.web.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
      "C:\Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe" /suppressReboot
      2⤵
      • Executes dropped EXE
      PID:2008

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
    Filesize

    136KB

    MD5

    f82afdf72718f01f8224e1741374ac49

    SHA1

    440b52448536d2887cac23de90b0f282291f9d65

    SHA256

    606719ec98b05a8b4d793dd8308513df55bce978562b5c25c497149bcc79ae7e

    SHA512

    98cfb90b18f7bf37e6effe72d7177f394cc65a4d08144f21e96ae7e44047bfb418c4ed3683c49e129a5588b59c1aaef78535c5ee829ec1f399ee68a25c4d254d

  • \Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
    Filesize

    136KB

    MD5

    f82afdf72718f01f8224e1741374ac49

    SHA1

    440b52448536d2887cac23de90b0f282291f9d65

    SHA256

    606719ec98b05a8b4d793dd8308513df55bce978562b5c25c497149bcc79ae7e

    SHA512

    98cfb90b18f7bf37e6effe72d7177f394cc65a4d08144f21e96ae7e44047bfb418c4ed3683c49e129a5588b59c1aaef78535c5ee829ec1f399ee68a25c4d254d

  • \Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
    Filesize

    136KB

    MD5

    f82afdf72718f01f8224e1741374ac49

    SHA1

    440b52448536d2887cac23de90b0f282291f9d65

    SHA256

    606719ec98b05a8b4d793dd8308513df55bce978562b5c25c497149bcc79ae7e

    SHA512

    98cfb90b18f7bf37e6effe72d7177f394cc65a4d08144f21e96ae7e44047bfb418c4ed3683c49e129a5588b59c1aaef78535c5ee829ec1f399ee68a25c4d254d

  • \Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
    Filesize

    136KB

    MD5

    f82afdf72718f01f8224e1741374ac49

    SHA1

    440b52448536d2887cac23de90b0f282291f9d65

    SHA256

    606719ec98b05a8b4d793dd8308513df55bce978562b5c25c497149bcc79ae7e

    SHA512

    98cfb90b18f7bf37e6effe72d7177f394cc65a4d08144f21e96ae7e44047bfb418c4ed3683c49e129a5588b59c1aaef78535c5ee829ec1f399ee68a25c4d254d

  • \Users\Admin\AppData\Local\Temp\7zS8E74D81C\SetupShim.exe
    Filesize

    136KB

    MD5

    f82afdf72718f01f8224e1741374ac49

    SHA1

    440b52448536d2887cac23de90b0f282291f9d65

    SHA256

    606719ec98b05a8b4d793dd8308513df55bce978562b5c25c497149bcc79ae7e

    SHA512

    98cfb90b18f7bf37e6effe72d7177f394cc65a4d08144f21e96ae7e44047bfb418c4ed3683c49e129a5588b59c1aaef78535c5ee829ec1f399ee68a25c4d254d

  • memory/2008-59-0x0000000000000000-mapping.dmp
  • memory/2024-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
    Filesize

    8KB