Malicious PDF — malware analysis report

Static analysis result for SHA-256 156c0be150b9fe02…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 06:53:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48aa4357692d87670c2d76242c86bc52 SHA-1: e4bb7e11fe8320da617870d8165fdc78253ebb50 SHA-256: 156c0be150b9fe02d989d6605ca0e92825ea6cf33d479d0ae8ab36432937aa4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators, specifically mentioning 'Roblox Hack How To Get Someones Password'. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or facilitate further compromise. No scripts were extracted, but the document's structure and embedded links strongly suggest a social engineering attack.

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-hack-how-to-get-someones-password-game-hack In PDF document text
    • http://arpinoturismo.it/images/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-join-free-roblox-builders-club_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/downloadable-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-get-1-million-free-robux-breast-milk_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-dominus-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-dinosaur-simulator-how-to-get-megavore-for-free_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-gamepasses-roblox-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-hack-a-vip-server-on-roblox_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-account-roblox-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-how-to-get-in-bloxburg-for-free_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/cara-ngembalikin-akun-roblox-yg-sudah-di-hack_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-hack-ee_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD2 22412 bytes
SHA-256: 0f16db324a31dbd830a511ff0be10830aff5a3ef86974fceb60b4ab7f5263775
font_01_sfnt_off00005fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE4 19512 bytes
SHA-256: cc68439f0894571282ab9193db958762af0f1e31d1dc157a5e7658708831a591

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