Malicious PDF — malware analysis report

Static analysis result for SHA-256 5860f2c708728629…

MALICIOUS

PDF

35.0 KB Created: 2021-06-22 05:35:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 455d663dd252c07b6d290ddbb9f15631 SHA-1: cc0a97f04be4bf1dab5b142c91c3d4bc078b00a0 SHA-256: 5860f2c7087286299c93159aa0b481da2ef61c14c5c3a5a131433214b66a32eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising game hacks and free in-game currency for popular games like Roblox and Coin Master. The document body and extracted URLs strongly suggest a lure to trick users into visiting these sites, which likely host further malicious content or phishing pages. No scripts were extracted, but the embedded URLs and heuristic firings indicate a clear intent to redirect users to potentially harmful infrastructure.

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-menu-hack-pastebin-game-hack In PDF document text
    • http://anna-art.in.ua/images/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://anna-art.in.ua/images/denisdaily-free-robux-website_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/roblox-games-with-no-anti-cheat_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/roblox-cheat-engine-download-2021_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/how-to-hack-roblox-accounts-2021-mobile_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://anna-art.in.ua/images/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://anna-art.in.ua/images/how-to-get-clockwork-shades-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://anna-art.in.ua/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://anna-art.in.ua/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/roblox-free-bc-v3rm_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/how-to-hack-jailbreak-beta-roblox_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://anna-art.in.ua/images/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://anna-art.in.ua/images/meep-city-free-plus-hack-roblox_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/robux-free-really-pls_GM431946152.pdfIn PDF document text
    • http://anna-art.in.ua/images/coin-master-hack-without-verify_GM406889139.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_off00003284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3284 22004 bytes
SHA-256: 8baca7572fa9f34a46896c2c60086fa893e4fc03c8e717904fb49e9bf790ca49
font_01_sfnt_off0000630e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630E 19368 bytes
SHA-256: 88b1302c5679ccd2e5a2c11c4cd35583f4c1f5937706f20f0ac26ddf749e651d

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