Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c45a90111022a5b…

MALICIOUS

PDF

33.4 KB Created: 2021-06-20 11:10:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a5d100577c722684433677017e9041ad SHA-1: c921e4757a4226a6c34ffa600969b613dc647b4d SHA-256: 1c45a90111022a5b811e6cb91bad78ed691bfe25eb067a6f81229a53d47e5fc3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to a known malicious redirector. The document body contains multiple URLs, including the primary malicious one, suggesting a phishing or scam attempt. The presence of embedded URLs and the nature of the lure indicate a likely attempt to drive users to a compromised or malicious website, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-promo-codes-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-roblox-girls-clothes_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/download-roblox-free-full-version_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/hack-roblox-admin-dl_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-without-doing-anything_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/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-money-cheat-codes_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/secret-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-money-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-2021_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_off00002a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A59 22484 bytes
SHA-256: 25426e5f3294cb20973012faceb45612ea53bfb9006e4e01f7280d29a544525e
font_01_sfnt_off00005c6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C6C 19572 bytes
SHA-256: 0dadee5e3cc3b2abbaca990777016bf93155e721bdd32ff7d925edbe6cadea8f

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