Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2374ff23d9f03c8…

MALICIOUS

PDF

48.5 KB Created: 2021-06-03 08:18:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 28b9a8a241f4eb6336d4632e00aba963 SHA-1: 4b77effc40cd3960829546348ae1c07f05fa38cb SHA-256: f2374ff23d9f03c8fc91e3453644bccf2b6e82d1b6b5afc5e5248d623aebebc9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which are structured as a link farm for SEO purposes, pointing to sites offering in-game cheats and currency. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded links are indicative of a lure to external malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/406889139/coin-master-free-spins-and-free-coins-game-hack
    • http://muslib.unmus.ac.id/repository/give-me-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-daily-spins_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/how-to-get-free-robux-by-playing-games_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/how-to-get-free-minecraft-windows-10_GM479516143.pdf
    • http://muslib.unmus.ac.id//repository/lazyblox-com-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/free-minecraft-account-and-password_GM479516143.pdf
    • http://muslib.unmus.ac.id//repository/coin-master-free-spins-link-whatsapp-group_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/does-roblox-premium-expire_GM431946152.pdf
    • http://muslib.unmus.ac.id//repository/how-to-hack-coin-master-in-pc_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/roblox-devil_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/hack-coin-master-download_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/free-robux-no-downloading-apps_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/free-spins-coin-master-without-completing-offers_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/websites-that-give-you-free-robux_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-34-4-hack-download_GM406889139.pdf
    • http://muslib.unmus.ac.id/repository/best-way-to-hack-coin-master_GM406889139.pdf
    • http://muslib.unmus.ac.id//repository/mobihack-roblox-hack_GM431946152.pdf
    • http://muslib.unmus.ac.id/repository/coin-master-free-gifts_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053a3.bin
32cfc78ed7b48a5fd63e085bf9f64d70811d4675606bcc3f1b8e86e37aecf74a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53A3 26964 bytes
font_01_sfnt_off000091b5.bin
b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91B5 2880 bytes
font_02_sfnt_off00009ba0.bin
7f8980b6f3213b204c7b050e62c653166806b65682437d624869b2fc7a4cb6a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA0 18060 bytes

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