Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d33624c39de5c9e…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 05:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: bd9957ba0491efd9b5dfc63a192cd4a3 SHA-1: 412a99484c1071229554fd971133d4c5a22b3b96 SHA-256: 1d33624c39de5c9ea8064de90040978f372c003ae2c6ae29e698418c0b247c93
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 0.9648

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/431946152/free-robux-link-game-hack PDF link annotation
    • http://androidthai.in.th/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://androidthai.in.th/images/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-images_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46DE 25660 bytes
SHA-256: ea0f31348edb1760f45549dc10aedeb0c11c0a5fa4e1b8927c610c17832d05c3
font_01_sfnt_off00007f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000088d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D8 18304 bytes
SHA-256: a4aae99c46e0a0f586669c3aecb8c0d6e5f23962dc49b2f1654f133382ac5317

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