Malicious PDF — malware analysis report

Static analysis result for SHA-256 417096118afc1f0c…

MALICIOUS

PDF

34.3 KB Created: 2021-06-23 16:55:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: b0967c9d02285aef788bb5d38f962c06 SHA-1: 806f6637d9fff1d382e2e1b358fa8e45b0c9184e SHA-256: 417096118afc1f0ced4290ff09a700de9adbf53dbf0939ffad63b2b6f2130e88
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are SEO-optimized PDFs designed to lure users with promises of game cheats and in-game currency. The primary URL, http://netcdn.co/app/431946152/free-robux-no-quiz-game-hack, likely hosts a malicious application or further redirects. The ML classifier strongly indicated maliciousness, and the presence of embedded links and a 'download button' lure supports a phishing or social engineering attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-robux-no-quiz-game-hack PDF link annotation
    • https://katalog.smkn1glagah.sch.id/repository/how-to-play-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-how-to-get-free-hats_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/avatar-de-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/xonnek-robux-hack_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/www-coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/robux-free-co_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/undetectable-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-pet-simulator-how-to-get-a-free-rainbow-dominus_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/hack-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-pe-free-download-ios_GM479516143.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_off00002e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5E 22512 bytes
SHA-256: b58a63c3edd560a9a71bcaafee799c2de7bbb267007f0c12f895330a8f60401e
font_01_sfnt_off000060cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CD 19076 bytes
SHA-256: 2ff4a9ce559992c74c0f7b4bdf5a08321f537dc28f15968021beaf11ca365927

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