Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ca210a756e9d51…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 18:18:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 99863144b0d4f82db3558773f01c3041 SHA-1: a40995d2007884e811792ed613c5cce8e57da6ce SHA-256: 14ca210a756e9d5139efce91463f2781204c7eacdf884ec1d707b6f62905f442
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are presented as guides for game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, and the 'SE_DOWNLOAD_BUTTON' suggests a lure for users to click these links. The primary external URL identified is http://netcdn.co/app/431946152/how-to-hack-booga-booga-roblox-2021-game-hack, which likely leads to a malicious payload.

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/how-to-hack-booga-booga-roblox-2021-game-hack
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-roblox-groups-with-funds_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/blogspot-coin-master-free-spins_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-hack-2021_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-spins-and-coins_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-speed-hack-in-swordburst-2-in-roblox-2021_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/game-toolbox_GM479516143.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/roblox-assassin-free-tokens_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/roblox-hacked-accounts-list_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-app_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/tiktok-free-view-jelly-fruit_GM835599320.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/startingploit-roblox-hack_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/blogspot-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/boku-no-roblox-hack_GM431946152.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-village-4_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/coin-master-fan-hack_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdf
    • https://www.elearning.ma-alkhairiyah.sch.id/__statics/gudangsoal/files/how-to-get-wings-free-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000327e.bin
70bf0f1aac06e049e784cc08ae5e48a3ff1575694cf36fbbcfd62b5c31d6d7c9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327E 22524 bytes
font_01_sfnt_off000064f5.bin
92585a4286d5f7a1ce24442c2ac68d82f9c7689d52cff942587d672135baa510		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F5 19224 bytes

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