Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdab2b8cc7a41bb6…

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 01:19:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 343cbfb9e3040b6f9765588a7e7cda4f SHA-1: 0b6625dd54eea8786302af52ec2e4d2b34774189 SHA-256: bdab2b8cc7a41bb6fb4ecc291d75254e2225a5b5228dea3852224d681e2a9792
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to malicious infrastructure, as indicated by the 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristics. The document body and embedded URLs suggest a lure related to game hacks and generators, aiming to trick users into visiting the malicious site. No scripts were extracted, but the overall pattern points to a phishing or scam 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/me-enfrente-a-un-hacker-de-roblox-game-hack In PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-robux-net_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pubg-uc-with-paypal_GM1330123889.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/pubg-uc-with-jazz-cash_GM1330123889.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/game-robux-free_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/bee-game-roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://www.pustaka.pn-calang.go.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.pn-calang.go.id/repository/free-ways-to-get-robux-2021_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_off00003124.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3124 22288 bytes
SHA-256: 24ac4d04cf78f251e4f2ac928117c734d1110f693eeda68eef2784157663f9d5
font_01_sfnt_off000062b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B1 19124 bytes
SHA-256: 419dc53bb384cb8ea74de9622f8d042953fbe33e04d3001fc02be3b6bb425c82

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