Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dfac822f66ccc87…

MALICIOUS

PDF

38.5 KB Created: 2021-06-20 17:53:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ae532f323f8b76d54f2703f0de6d9111 SHA-1: 9bfc93516f204272c357379bae51248636e99d9e SHA-256: 9dfac822f66ccc87dc894144d83811df788f012a57d8d3ba2d1954926f811839
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/mad-city-roblox-hack-saison-4-game-hack. This redirector likely serves as a lure for users seeking game hacks, leading them to further malicious content or downloads. The presence of multiple PDF-specific heuristics indicating malicious redirectors and lures strongly supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/mad-city-roblox-hack-saison-4-game-hack In PDF document text
    • https://privatearrangements.co.nz/public/files/moon-tycoon-side-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/fly-hack-in-roblox_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/apk-hack-for-roblox_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/how-to-get-premium-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-rub-hack-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/oginject-co_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/free-roblox-acc-2021_GM431946152.pdfIn PDF document text
    • https://privatearrangements.co.nz/public/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003d8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D8B 22696 bytes
SHA-256: caa9f92fef4f21d152e16cc7f95dbe7f620e24eebfded7f880c8cfdadce96701
font_01_sfnt_off00007045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7045 19492 bytes
SHA-256: 205092054c48336e30bd68be4b858ab64a8bfaf829234079a41971c82801b3eb

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