Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bcc423eac30208a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 09:03:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b58de332c561982de1fdd938843764b2 SHA-1: d09df0cf5564b21df6c3f5ecdd65695ae1b9702b SHA-256: 0bcc423eac30208aae8089ae7c4c67055a35336d068b524178f93a121e602c69
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as 'game hacks' and 'free generators' to entice users. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-roblox-game-servers-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a malicious redirection workflow, likely leading to a secondary payload download.

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/how-to-hack-roblox-game-servers-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/hacking-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/best-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-lumber-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-ban-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/hack-client_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-carde-roblox-gift_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-valkyrie-helm-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-my-hero-academia-online-quirk-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/bundle-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/robux-4all-cool-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-daily-rewards_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/games-on-roblox-that-will-give-u-free-hat-youtubecom_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-account-with-all-elements-on-elemental-battlegrounds_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/got-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/martian-lettuce-coin-master-free_GM406889139.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_off00002fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDF 22940 bytes
SHA-256: 6a68e0c660232abe529fa7c3869e8a6b99b722891a3a17629dff7e806b5f3d39
font_01_sfnt_off000063a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A0 19192 bytes
SHA-256: 8fbf640df1bd5e801e2d5d47c84114ceee6e5103ec0dc80d075143fe23b820b2

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