Malicious PDF — malware analysis report

Static analysis result for SHA-256 350f1666ce4006a2…

MALICIOUS

PDF

34.7 KB Created: 2021-06-19 01:49:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c27fd1440421dedbab1b685329bf40d1 SHA-1: fe037f8e3af24271a7fcaecc7d113e651d664a30 SHA-256: 350f1666ce4006a242c0f89af5f8622b6a7bed2b62acf53b644376382c465760
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, including one identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks and free accounts, directing users to the URL http://netcdn.co/app/431946152/2021-roblox-free-accounts-facebook-game-hack. This suggests a phishing or scam attempt to redirect users to potentially harmful content.

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/431946152/2021-roblox-free-accounts-facebook-game-hack In PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/cheat-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-tiktok-likes-youtube_GM835599320.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hacks-para-robux-gratis_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/robux-hack-v6-5-mythical-chaos-pastebin_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-blue-tshirt-free_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-animatins_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/arsenal-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-roblox-robux-with-cheat-engine-62_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-vehicle-tycoon-free-money-script-pastebin_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-video-files-for-roblox_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-cheat-engine-speed-hack-code_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-tix-bc-co-cc_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/hackear-roblox-robux_GM431946152.pdfIn PDF document text
    • https://pasca.unisba.ac.id/elibrary/repository/free-tiktok-followers-app_GM835599320.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_off00002e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E87 22524 bytes
SHA-256: 458ec015c55bec3dd9abd72c7445fe3e41a6039e7c28ff74246302b93a22ff0d
font_01_sfnt_off00006138.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6138 19468 bytes
SHA-256: 77a2e419e7c11bc3d5c49a0eaee1a8584aff63aa50bd2338d9a2b1e667ee017f

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