Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ac634493c45a74e…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 07:35:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4daf6c4b37a029633e8b088518599eff SHA-1: abc6970578e872eb4a539902fbd5e01c9aabafab SHA-256: 2ac634493c45a74e84bae7f785d51502b1ec292a031749ed8e4a3ec949269325
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on 'game hack' lures for popular mobile games. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and the presence of numerous related URLs strongly indicate a phishing or scam attempt. Although no scripts were explicitly extracted, the nature of the lures suggests the embedded links likely lead to malicious sites designed to download further malware or steal user credentials.

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.co/app/406889139/coin-master-free-spin-codes-game-hack PDF link annotation
    • https://deutsch-study.com/image/data/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/beyblad-rebirth-roblox-hack_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-groups-with-free-clothes_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-hacks-reddit_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-make-a-group-in-roblox-2021-free_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/hiw-to-get-free-robux-on-your-phone_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • https://deutsch-study.com/image/data/files/how-to-kick-someone-in-free-draw-2-roblox_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_off00003584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3584 22524 bytes
SHA-256: 47a5db47e5491d47d86b78da12931e251de17731fcabf1e241ce1953479e731a
font_01_sfnt_off000067af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67AF 18348 bytes
SHA-256: 9e9c4f8be19f0ad0d41979f724cf6b1bf7467f7e43e4e9071540c80937701c51

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