Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec79b216c1fef56a…

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 01:10:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 59c24503990defc064af406b0be5f273 SHA-1: f7d91ef172af37609c4e812f436ff0c3d75b8189 SHA-256: ec79b216c1fef56a64f56a14d1e628ac78ca5bd539cc7e8d17e3b1a7ce3d4274
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 0.9969

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/406889139/free-spins-coin-master-game-hack PDF link annotation
    • http://androidthai.in.th/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/minecraft-book-collection_GM479516143.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/how-to-get-minecraft-for-free-on-phone_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-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/completed-coin-master-hack_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/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/free-coins-coin-master_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_off00004ba1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA1 26972 bytes
SHA-256: 134f9df2421678948c9cc3cd3e65bf3a621f6b9f0ef5b1b7ceec1552ff6c8d64
font_01_sfnt_off00008a73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A73 17884 bytes
SHA-256: 18816d8d761583b578c9833b8849e2eeaed27ef2f16a893d2032c58e3f8148b6

Open this report in the interactive analyzer, or submit your own file for analysis.