Malicious PDF — malware analysis report

Static analysis result for SHA-256 4001a3fc0c215be2…

MALICIOUS

PDF

43.0 KB Created: 2021-05-15 14:48:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1a753147ccfbb0dbf572065393456c15 SHA-1: b984f0fdda979d9bb9bf8e741e7de9cda340c6d1 SHA-256: 4001a3fc0c215be2da51ef143ef5283b4962af04d1daf09ce6fb1f16bd4687d7
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 0.9971

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/431946152/roblox-hacked-version-game-hack PDF link annotation
    • http://gitagasht.com/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://gitagasht.com/images/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • http://gitagasht.com/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://gitagasht.com/images/free-roblox-money_GM431946152.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
font_00_sfnt_off00004842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4842 26232 bytes
SHA-256: 566258fea998e478096421c1931197e13c751d6dc00a6653b4b0ca8524cdfe7d
font_01_sfnt_off00008479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8479 18608 bytes
SHA-256: 1ecc9580a68a9d8cddaeb68f5ba7642643800a9b47dfc5932154ad501a7e9da7

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