Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bdf1a9d595e609f…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 17:32:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e0bd23f637b4774f36e8a7d2c8905d7c SHA-1: 27a4f2c8655626970fa3cef0f9b4486dd6a7ad1a SHA-256: 5bdf1a9d595e609f80f5e7c9e676114e8e899d383fdda5709181a124cfb79a7f
102 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which are SEO-optimized and point to pages offering free game currency or hacks. The primary URL, https://netcdn.xyz/app/406889139/coin-master-free-spins-link-today-new-game-hack, is likely part of a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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-free-spins-link-today-new-game-hack
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/robux-sign_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/collect-free-spins-coin-master_GM406889139.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/robux-hack-no-human-verification_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-today_GM406889139.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/minecraft-wurst-hacked-client_GM479516143.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/teach-me-to-hack_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/blogger-coin-master-free-spins_GM406889139.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-computer_GM479516143.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/coin-master-cards-hack-2021_GM406889139.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-iphone_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/is-there-any-way-to-get-free-robux_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/roblox-free-item-codes_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-code-free_GM479516143.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/minecraft-bedrock-free-download-pc_GM479516143.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/hack-coin-master-mod-apk_GM406889139.pdf
    • http://elearning.maassalamiyah.sch.id/__statics/gudangsoal/files/free-spin-coin-master-instagram_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c3c.bin
21a34416ebce9adf259360e5dd53de6c1f1a76c694ba870a5aa4c9b6f1aefa90		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C3C 26188 bytes
font_01_sfnt_off000087e7.bin
4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87E7 3400 bytes
font_02_sfnt_off00009311.bin
51c95658009ee6a6ae875a8d4133a79c51d36fbd34bac1203a2f2fe060da7c96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9311 18572 bytes

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