Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5b3c10ea106c98…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 20:05:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a8d5f73225f721e6a7a22c8f7543e1ae SHA-1: a1377eb53f900c27e90f3c27cadb26e47ff4e18f SHA-256: 8e5b3c10ea106c982c0a3a2aa8ba3ae6b50142c741ffea4447c03ea8ec6248a3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one identified as a malicious redirector, that lure users with promises of free game currency or hacks. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-iphone-5-game-hack, is associated with known malicious infrastructure. The document's content and embedded links strongly suggest a phishing or scam attempt to redirect users to potentially harmful websites.

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-get-free-robux-iphone-5-game-hack In PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/roblox-free-robux-hack-pc_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-robux-pastebin-no-wait-no-subscribe_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/command-for-free-robux_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-roblox-cards-for-100_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/hack-mega-matar-gente-roblox_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-robux-games-that-work_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/hacks-for-flora-frenzy-roblox_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/roblox-code-on-how-to-get-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-roblox-codes-2021-multiple-people-can-use_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/r67-roblox-hack_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-roblox-rs_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/how-do-admins-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/image-veste-army-free-roblox_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/how-to-hack-on-roblox-account-theft_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/como-ser-un-hacker-en-roblox_GM431946152.pdfIn PDF document text
    • https://2020.innscidsp.com/wp-content/uploads/fsqm-files/como-hackear-robux-facil-ordenador_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_off00003187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3187 22200 bytes
SHA-256: 2418dba1961fe9f5c895057efe124e5ffcf91b959de4f769eb083b47c1d1ec4d
font_01_sfnt_off000062d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D8 19460 bytes
SHA-256: f754614c87c645a0576b0497420f11dd9866bfaec868307e2db682da350c81c0

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