Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b27262fc533b31a…

MALICIOUS

PDF

33.6 KB Created: 2021-07-06 06:59:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8b34948ae79acdc4307ff0d1d30cbe46 SHA-1: 735eac986b4bd49e7dee8407616e3a789128e88d SHA-256: 1b27262fc533b31ad4275906d70b8d58b5280460794f19978363119fa4717f5a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-free-spins-and-coins-today-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/earn-robux-online_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-hack-super-jump-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hack-2021-download_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/fake-roblox-online-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/gg-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-stuff-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-roblox-real_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hack-robux-in-pc-now-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/comment-hacker-un-compt-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacker-vs-admin-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-redeem-code-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/get-robux-free-of-charge_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/elemental-battlegrouds-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hacker-tool-for-roblox-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E52 22308 bytes
SHA-256: 75c883c027f98135bc0d1bf906bfa1c8704a3af9dabaac435e64b844b746d245
font_01_sfnt_off00005fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE9 18528 bytes
SHA-256: 64e6d113bd97b02afb7632d7b1c85a61d3fc47f14b318ce8b72a94cd305839a3

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