Malicious PDF — malware analysis report

Static analysis result for SHA-256 8727ba3926e40ca6…

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 08:14:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c953c215f773038a98b7a9f3d6106794 SHA-1: 6cf2e34054c43f47f034cdd802ec79db72d1ea98 SHA-256: 8727ba3926e40ca66bf42de6a4dcbb17185044a3e41708771e3d2503a7970511
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and embedded text related to game hacks and free in-game currency, specifically targeting popular mobile games. The primary lure, 'haktuts-coin-master-free-spin-link-game-hack', directs users to a suspicious domain. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely using a social engineering tactic to trick users into clicking malicious links.

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/406889139/haktuts-coin-master-free-spin-link-game-hack PDF link annotation
    • http://ivanitskyvs.ru/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/coin-master-stop-attack-hack_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/coin-master-map_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://ivanitskyvs.ru/images/app-for-free-spins-on-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_off000048ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48AB 25680 bytes
SHA-256: e2dc3522cb9e969d5fcc00a784e786d0d237e380a8990af2930f9874e756b748
font_01_sfnt_off000082ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EC 18196 bytes
SHA-256: d21f7c9777ff22c572caba6bc61bff535e054503ba9d308437b2513133ac2854

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