Malicious PDF — malware analysis report

Static analysis result for SHA-256 05641100c0a46600…

MALICIOUS

PDF

34.0 KB Created: 2021-06-19 00:07:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64ac3ddf837d50a63925b312d6a9ffed SHA-1: adf38f504008094c71250a44a6ccefd7ff582feb SHA-256: 05641100c0a4660029e75a8ad114f6526f3f0f18e6ede8000ad632d40dba4172
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector, that promise free in-game currency for popular games. The primary lure is 'Roblox Free Robux Game Uncopylocked' which redirects to http://netcdn.co/app/431946152/roblox-free-robux-game-uncopylocked-game-hack. This indicates a phishing or scam attempt designed to lead 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/roblox-free-robux-game-uncopylocked-game-hack In PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-make-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/rewards-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/toolbox-for-minecraft-pe-ios_GM479516143.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_off00002eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EED 21428 bytes
SHA-256: 87aefed0f489352958db46a4c3f7c5e898f97d953203d93e9451234f690a323d
font_01_sfnt_off00005dec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 19752 bytes
SHA-256: 5b136a150f04f6a7f47e3fc50a6fd9eaee98aec56e90862cb158bd11e51c8e69

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