Malicious PDF — malware analysis report

Static analysis result for SHA-256 062bb8666172fc6e…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 13:58:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 098a6e4a208d1383d7f40dcb2f955a51 SHA-1: a92a52a22c43dbe788f24953a2489744a168ff58 SHA-256: 062bb8666172fc6e0e673d212c3cc0fc2b3b9489164739308280f0a6b2039180
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures for popular games. The primary malicious link identified is http://netcdn.co/app/431946152/free-flower-roblox-game-hack. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious websites or phishing pages. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-flower-roblox-game-hack In PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-bc-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-2021-free_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/game-kit-roblox-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-free-items_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-promo-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-jouer-avec-un-mec-qui-hack_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/blox-rewards_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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_off0000313e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313E 23184 bytes
SHA-256: 3d4b29b6fd6dd832ed8f4b65b80fbec816eb34fa223c872844b034827b99b1fa
font_01_sfnt_off00006577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6577 18812 bytes
SHA-256: 30fb126b3ebaa734eae7383292722db3202a6027ff1e7d7665797b74dbddb52a

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