Malicious PDF — malware analysis report

Static analysis result for SHA-256 a30bd9bb2d85d584…

MALICIOUS

PDF

41.5 KB Created: 2021-05-11 20:31:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f15e47a1614af1aca0dab59a6f396b0 SHA-1: 735e871ce42762f6952015088b4d81889e284f41 SHA-256: a30bd9bb2d85d5846da34eb5a0fea4ae6fc39d85c81d7e614061a5097d3a87fc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links to a known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The document body and embedded URLs further reinforce this by pointing to various game hack and free currency sites, likely serving as a lure to download further malicious content or visit phishing pages. No scripts were extracted from this sample.

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/406889139/free-spins-coin-master-hack-2021-game-hack In PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://www.my-travel.com.hk/upload/files/roblox-robux-page_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
stream_003_off0000497f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497F 23736 bytes
SHA-256: 9dae0dbe40a5e4913b17307a33d2866c21bdc72edaf382bdecc902d09e0030f1
font_01_sfnt_off00007f45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F45 18456 bytes
SHA-256: 8f74d6ddd2abce9f563610cbfcc253ce51c057807514da134dc64dcb58b7111e