Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a259e9be22e5cb…

MALICIOUS

PDF

41.7 KB Created: 2021-05-19 09:47:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 83a65a65dc402939ca3fc714c0b6a4ec SHA-1: da57666816ad1e02a465b90fa43b30f0b45950e9 SHA-256: 53a259e9be22e5cb38627c4cc0a40eafb13cc02521cb9510c5dc88df3fcdd4a8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded URLs that promote game hacks and generators for popular games. These links likely lead to malicious websites designed to distribute malware or conduct phishing. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-hacks-xbox-one-game-hack PDF link annotation
    • http://jasperfirstumc.com/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-cracked-apk-free-download_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004752.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4752 25276 bytes
SHA-256: 6c2ce1ecc984c19d4daa674dab8e9d4d6bf7a1b2f97e2700d2c370d462b499da
font_01_sfnt_off0000803c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803C 18476 bytes
SHA-256: 02c256a4f31d672ffdf2c78980c9f8d87063a23b9bf8713c78613c8fd45925f8

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