Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfc7c7030cc7685…

MALICIOUS

PDF

35.4 KB Created: 2021-07-07 22:58:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: aa3e6b6403ab456cd5dfdee807757468 SHA-1: a4a4d1f1cdb536ea6aa233fc007044350b843954 SHA-256: 6cfc7c7030cc76858d7bc51980895ea06353a39b08de7240d764eb7d10dafecb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a phishing or malware distribution attempt. The primary lure is related to free items for popular games like Minecraft and Roblox. The document directs users to external URLs, such as 'http://netcdn.tw/app/479516143/minecraft-free-ios-no-verification-game-hack', which are likely to host malicious content or lead to further phishing pages.

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.tw/app/479516143/minecraft-free-ios-no-verification-game-hack
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-codes-no-verification-2021_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/games-that-give-you-free-robux_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/how-many-levels-in-coin-master_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-printable-roblox_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/cheats-for-roblox-jailbreak-money_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-accessories-roblox_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-roblox-generator_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/coinmaster-spins_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-robux-meme_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-minecraft-severs_GM479516143.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/how-to-be-a-roblox-admin-for-free_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/how-to-use-cheat-engine-on-roblox-without-shutdown_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/how-to-get-1-million-robux-for-free_GM431946152.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://elearning.man1kotamobagu.sch.id/__statics/gudangsoal/files/pubg-300-uc-free_GM1330123889.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003645.bin
3ed2fb178a3320fc817188caddebda84aeac3775478479414794189b641484ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3645 22464 bytes
font_01_sfnt_off0000686f.bin
9921e29242a30a87c239e4842ad7b287d420a62858cff22e2e8107af17a37070		 pdf-font-stream PDF embedded font (sfnt) at offset 0x686F 18132 bytes

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