Malicious PDF — malware analysis report

Static analysis result for SHA-256 1150a4a5376804de…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 15:56:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ead04650b4c1c03eaf60dda80b3a1817 SHA-1: 2138b56ffbbb230942589f68956ed8c3b40cbfe4 SHA-256: 1150a4a5376804dec0e169158aa6a77bffaf8ccb2a5dd383b37d429b2fa11f9a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to known malicious infrastructure. The document body and extracted URLs suggest a lure for free game currency or hacks, likely intended to lead users to a phishing or malware download site. No scripts were extracted, but the PDF structure and embedded URLs indicate 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/free-robux-game-code-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/cheat-engine-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/pointsprizes-com-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-spins-free-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/descargar-hacks-para-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/tiktok-free-minecraft_GM835599320.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-speed-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/why-cant-i-use-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hacks-roblox-yt_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-card-codes-parody-of-robuxian_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-do-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hacker-egg-roblox-2021_GM431946152.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
font_00_sfnt_off00002e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E20 22072 bytes
SHA-256: 5171ebda46180b2e65eb7db49b81168130955201aad38aa8e48c73b8eeadbe13
font_01_sfnt_off00005eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEF 19152 bytes
SHA-256: b661b18fa0bfc7c89435e79763f3a8d6872b7f70b8a0094f9cde46171c47d7bd

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