Malicious PDF — malware analysis report

Static analysis result for SHA-256 f781ac7609511bed…

MALICIOUS

PDF

41.7 KB Created: 2021-05-14 14:36:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a0ce74beb96593e1c8fb5e5d67bcd06e SHA-1: 0d7748682c91779353a151ca3b0ac8812ad1d1cb SHA-256: f781ac7609511bed7faaf58c8561de7f7e8c9e42953f10f214b2d6fc728ea595
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, primarily related to game hacks and 'free Robux', indicating a social engineering lure. The ML classifier and PDF heuristics strongly suggest malicious intent, likely to redirect users to phishing or scam sites. Although no scripts were explicitly extracted, the nature of the lures and embedded URLs points towards a malicious document designed to trick users into visiting potentially harmful sites.

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/free-robux-group-payouts-game-hack PDF link annotation
    • http://pdapanache.com/images/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/village-coin_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/free-coin-spin_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/no-human-verification_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pdapanache.com/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://pdapanache.com/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://pdapanache.com/images/coin-master-free-download-for-pc_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
font_00_sfnt_off00004763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4763 24732 bytes
SHA-256: 9a66704c7dd04c410e7d7bc498b509b44bf0c672b7dd0a0136fa0de5313141e2
font_01_sfnt_off00007ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBD 18856 bytes
SHA-256: ce567b12c15b2d80af346f88522d5e97efe0146d8ef1a381d9680522b282c106

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