Malicious PDF — malware analysis report

Static analysis result for SHA-256 2425b3987ed46eed…

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 20:50:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6e658ee005c4a17e8f7fc6195f606e57 SHA-1: 141912b98ff360b01899f804a0e560515bc245c7 SHA-256: 2425b3987ed46eed281d90677fd251662665093f8236d47c97585d16a5f0760b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to a known malicious redirector infrastructure, specifically http://netcdn.tw/app/431946152/robuxlove-net-free-robux-game-hack. The document's content and heuristics indicate a lure for game hacks, suggesting it's part of a phishing or malware distribution campaign. The embedded URLs likely lead to further malicious content or exploit kits.

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.tw/app/431946152/robuxlove-net-free-robux-game-hack In PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-robux-download_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-get-free-in-catalog-roblox_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/10-awesome-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://allhimalayantreks.com/userfiles/files/roblox-create-a-shirt-free-shipping_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
font_00_sfnt_off000030d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D8 22588 bytes
SHA-256: 7611727523ec586c946740b13e4861e9e84b80d0f53b43e76040bbe026c11c70
font_01_sfnt_off0000630b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630B 19008 bytes
SHA-256: 92c71e3ee54162ecdb90edce310839d96772666fc8f893851f22cdce92d826b2

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