Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb25f4ac51f268e…

MALICIOUS

PDF

46.3 KB Created: 2021-05-14 00:35:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a1f97da20ab49ade49c54d080d5de46b SHA-1: c564b20ef0cdb603034c0505ad4584f2db7a4117 SHA-256: deb25f4ac51f268e9bc025b16676775c6e0f9fdbd0a381dc262b18058951029e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, forming a link farm, that direct users to external sites offering game hacks and cheats. The primary URL, https://netcdn.xyz/app/479516143/minecraft-pe-apk-download-free-0.15-0-game-hack, suggests a lure for downloading an application. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent. No scripts were extracted, but the extensive link farm and the nature of the linked content strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

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/479516143/minecraft-pe-apk-download-free-0.15-0-game-hack
    • http://www.e-lysis.com/images/coin-master-new-cards-hack_GM406889139.pdf
    • http://www.e-lysis.com/images/coin-master-free-spins-promo-code_GM406889139.pdf
    • http://www.e-lysis.com/images/microsoft-bing-free-robux_GM431946152.pdf
    • http://www.e-lysis.com/images/how-to-get-infinite-robux_GM431946152.pdf
    • http://www.e-lysis.com/images/free-robux-no-verification-or-survey_GM431946152.pdf
    • http://www.e-lysis.com/images/how-to-hack-into-someones-roblox-account_GM431946152.pdf
    • http://www.e-lysis.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdf
    • http://www.e-lysis.com/images/coin-master-game-hacking-tricks_GM406889139.pdf
    • http://www.e-lysis.com/images/coin-master-strategy_GM406889139.pdf
    • http://www.e-lysis.com/images/coin-master-hack-to-get-free-spins_GM406889139.pdf
    • http://www.e-lysis.com/images/huskybuckscom-free-robux_GM431946152.pdf
    • http://www.e-lysis.com/images/free-spins-coin-master-links-no-human-verification_GM406889139.pdf
    • http://www.e-lysis.com/images/free-robux-download_GM431946152.pdf
    • http://www.e-lysis.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
    • http://www.e-lysis.com/images/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://www.e-lysis.com/images/free-robux-codes-2021-real_GM431946152.pdf
    • http://www.e-lysis.com/images/robux-redeem_GM431946152.pdf
    • http://www.e-lysis.com/images/how-do-u-get-free-robux_GM431946152.pdf
    • http://www.e-lysis.com/images/free-robux-on-phone_GM431946152.pdf
    • http://www.e-lysis.com/images/free-minecraft-mods_GM479516143.pdf
    • https://discord.gg
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a59.bin
36c9d30efed12b885546d4741d5de7ec476d44dfa6dce4e36fdb6abb3c8c8a24
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A59 25840 bytes
font_01_sfnt_off00008572.bin
eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8572 2940 bytes
font_02_sfnt_off00008f81.bin
28dc74618e8b02129b424bb36b85fc5c3aa5d44cc182401491d55e46ac5e52ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F81 19268 bytes