Malicious PDF — malware analysis report

Static analysis result for SHA-256 353dea86a28ff71c…

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 01:27:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 73d254ea7555b89cc9e5a74f392378b4 SHA-1: bffa9a27487ff0c2e14e629331d2a596d1fc8c3e SHA-256: 353dea86a28ff71cfb52cac7bd87745b38cdc56046c40881e2c2274db7e044f0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector, likely serving as a gateway to further malicious content or exploits. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or redirection attack.

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/city-free-roblox-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-ios-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/moon-active-games_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-room-cheats_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-hack-your-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/www-roblox-com-free-games-online_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/if-sombody-cheats-in-roblox-what-do-you-do_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/robux-download_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_off00002fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FBE 22376 bytes
SHA-256: 7e5962ee4b5fb4946cba67e18a64414b358a6dac01b4083dd1d86abf1378d302
font_01_sfnt_off00006195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6195 19052 bytes
SHA-256: 68842a3eecd9f0847a04caabf4c41098d995db050871206e1741e49e1a77fcfd

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