Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7bf55347ad59db…

MALICIOUS

PDF

41.4 KB Created: 2021-05-19 00:13:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7c90626a4fb740361308abf46b6957be SHA-1: 984133d753d7ddad52514fa32f68891d835060f0 SHA-256: 7b7bf55347ad59db28b279ccbbe6e71a3c513047c3ebc2738666272cad9d5d4e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and cheats, such as 'pubg-uc-voucher-game-hack'. These links are flagged as malicious redirectors, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains references to these lures and the malicious URLs, reinforcing the social engineering aspect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/1330123889/pubg-uc-voucher-game-hack In PDF document text
    • https://www.belgium-archery.be/images/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/roblox-avatar-free_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/mc-update_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-daily-free-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • https://www.belgium-archery.be/images/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/coin-master-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.belgium-archery.be/images/minecraft-skins-download-free_GM479516143.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_003_off00004454.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4454 26648 bytes
SHA-256: 43eb78771db92403c2901e69cae008748791559a0176db94dae89582b2a1850a
font_01_sfnt_off00007f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5F 18340 bytes
SHA-256: 10db02f4b1401a5dd02a22f084e9f7057729daa9d790706f9921932124bfe87a

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