Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be091ab0278a45d…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 23:10:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f0fcd4922ff42e66e13b0875d43f7136 SHA-1: ac7eedf5da15058b8cec52999f63b7f0336f30b0 SHA-256: 1be091ab0278a45de8ef002f6a9c12134dc20866baf76c8577371f6eca867bdd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The document contains multiple embedded URLs, including one pointing to known malicious redirector infrastructure at http://netcdn.co/app/431946152/roblox-2021-hacks-catalogo-free-game-hack. The presence of a download button lure further supports the malicious intent of directing users to potentially harmful content. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/roblox-2021-hacks-catalogo-free-game-hack In PDF document text
    • http://library.stikessuakainsan.ac.id/repository/rc7-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-inspect-hack-roblox-robux-redeem_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/hacks-para-tener-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/roblox-games-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-do-u-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/game-cheat-central-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spin-and-coins-links-home_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/robux-gives-mega-glitch-hack_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/pubg-uc-vn_GM1330123889.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/minecraft-reach-hack_GM479516143.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_off00002f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0E 21672 bytes
SHA-256: 9d76c84984ba7dc4c208ce87d37082d77a0706f9660363a5eb5c54c76854afad
font_01_sfnt_off00005ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECF 19324 bytes
SHA-256: ea229db7c28d2772b0040becc5d19369cf160f726bd3c04b7ce674c2445a0801

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