Malicious PDF — malware analysis report

Static analysis result for SHA-256 60abf993d0c6fc20…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 20:32:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fe887790213b44689563597ef982c239 SHA-1: a427588de3805dc8933f8f9f28ecd17d2c538a9a SHA-256: 60abf993d0c6fc207c4e869236627ae3240693760bd8ebca26ea1c754aefe1e7
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links and a link farm, strongly suggesting a phishing or malware distribution attempt. The document body and extracted URLs indicate a lure for game hacks, likely leading to the download of malicious software. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-hack-with-facebook-login-game-hack
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-mod_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/robux-hack-no-human-verification_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-unlimited-robux_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/easy-roblox-today_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-hack_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/roblox-top_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-link-2021_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-come_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/make-robux_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/hack-coin-master-app-ios_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-india_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/free-robux-no-human-verify_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/uprobuxcom-free-robux_GM431946152.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-ultra-attack-hack_GM406889139.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/minecraft-hack-client-18-9_GM479516143.pdf
    • https://www.elearning.ma-alqasimiyah.sch.id/__statics/gudangsoal/files/coin-master-spin-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c02.bin
5dce32238e00abc54d3312cfe2914b42c9c0aa7f5500a33080bf1f662df8a811		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C02 24100 bytes
font_01_sfnt_off0000828f.bin
749705fc09f79508956169531e0f53da1cf92baf18e5ef239c7c9518cbf3631e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x828F 18688 bytes

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