Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d04a0619135e60…

MALICIOUS

PDF

34.8 KB Created: 2021-06-19 17:11:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ece635bd2d8ad5da77ea7781440687e5 SHA-1: d623da572335e7bacbb62ac32d16a04100567e0f SHA-256: 34d04a0619135e6060a4540a8b97dde0f739b7095529f91f928c40eb259c399d
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising free generators and game hacks for popular games like Roblox and Coin Master. The primary lure appears to be a 'free generator' for Roblox, directing users to the URL http://netcdn.co/app/431946152/roblox-its-free-advert-game-hack. The document's structure and embedded links strongly suggest a phishing or scam campaign aimed at tricking users into visiting malicious sites.

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-its-free-advert-game-hack In PDF document text
    • https://anshingtek.com.tw/image/data/files/wurst-hacks_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/a-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/case-clicker-hack-roblox-2021-no-virus-free-download_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/instantrobux_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/roblox-how-to-create-a-group-for-free_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/money-hack-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00003086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3086 22584 bytes
SHA-256: 4339c281fa71a84b88d79a4dd323e0e366b37b99d9ffbfa8eb32f58efdeaac4d
font_01_sfnt_off00006305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6305 19040 bytes
SHA-256: e1c4d043fdd97cf470ce4376b9b0edddb2683bace86eedb44708a365a8c2ce6c

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