Malicious PDF — malware analysis report

Static analysis result for SHA-256 a80ba328fc742c41…

MALICIOUS

PDF

35.9 KB Created: 2021-06-19 10:38:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d291577e1a964e96698b9ce5df0d75c6 SHA-1: e9e09d725b78e8fe3ad23adb208562b8642ce638 SHA-256: a80ba328fc742c41a3a5002d447706694e5dcb9b539fe80ddafd555a0095d91f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure related to game hacks and generators, directing users to a known malicious redirector. The document's content and embedded links strongly suggest an attempt to trick users into downloading potentially malicious files or visiting further compromised sites. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or malware distribution 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/roblox-hack-menu-2021-game-hack In PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/how-to-get-free-robux-on-pc-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/roblox-cheat-uscom_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/paginas-de-hacks-para-roblox-robux-gratis_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/minecraft-net-free_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/roblox-mobile-hack-android_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/fake-free-robux-place-download_GM431946152.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/pokemon-go-free-accounts-list_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032b6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32B6 23108 bytes
SHA-256: 2dbd5a3348b2cc9cf9ea16cc8b00c8897208ae592215170408417114bd6d0f43
font_01_sfnt_off000066d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 19208 bytes
SHA-256: 159835e1a608aac22caafa74518ca1e3b4147dc4346a035a9542dd8d7bffc5bc

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