Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4a35f76c28c41a9…

MALICIOUS

PDF

33.0 KB Created: 2021-07-06 03:22:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 33785eb0ef6f279aa284bb34e8ef92d9 SHA-1: 9cc9737ca07a052d4aaa95c8bfbe58dd2231dc9f SHA-256: f4a35f76c28c41a96016d4e7323dcdcf555617572f4c477af5f749eb5917e3ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising free game hacks and generators. The document body and heuristics indicate a lure designed to trick users into clicking these links, likely leading to further malware or phishing attempts. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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/479516143/is-minecraft-earth-free-game-hack In PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/cheated-on-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/coin-master-hack-apk-33-download_GM406889139.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/roblox-points_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/somebody-hacked-my-roblox-account-prestonplayz_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-groups-with-funds-roblox_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-robux-script-pastebin_GM431946152.pdfIn PDF document text
    • https://www.smarthealthme.com/uploaded_files/userfiles/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00002ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF4 21660 bytes
SHA-256: a242d182c4f79ba47f1cc22e2bfda3a74a67940ac5a87d23647cd7ad7f0c13f2
font_01_sfnt_off00005f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F61 18020 bytes
SHA-256: 96e6e3bf3303e8ffeb20927b63ae2ff56617c6f257b576ebfd215a73ab087f92

Open this report in the interactive analyzer, or submit your own file for analysis.