Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2f31a5833357a7e…

MALICIOUS

PDF

47.0 KB Created: 2021-05-18 00:55:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2c348e590bda4f17a105dc013a7c3aac SHA-1: c4a796d78aa1636cc871d6b05064bbb106588caf SHA-256: e2f31a5833357a7e68e56555601686b76f0baacd258d0fb0fe1d1b5b02a26cdb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a link farm, predominantly pointing to websites offering game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a 'download button' lure suggests an attempt to trick users into clicking these links. While no scripts were directly extracted, the PDF structure and extensive external linking are indicative of a phishing or malware distribution attempt.

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-hack-without-human-verification-india-game-hack
    • http://alroglobal.com/images/coin-master-free-spins-link-2021-iphone_GM406889139.pdf
    • http://alroglobal.com/images/free-roblox-wings_GM431946152.pdf
    • http://alroglobal.com/images/coin-master-daily-free-spins-and-coins_GM406889139.pdf
    • http://alroglobal.com/images/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://alroglobal.com/images/free-coin-master-spins-and-coins_GM406889139.pdf
    • http://alroglobal.com/images/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://alroglobal.com/images/how-to-add-mods-to-minecraft-pe_GM479516143.pdf
    • http://alroglobal.com/images/hacks-for-minecraft-windows-10_GM479516143.pdf
    • http://alroglobal.com/images/is-it-possible-to-get-free-robux_GM431946152.pdf
    • http://alroglobal.com/images/hack-coin-master-net_GM406889139.pdf
    • http://alroglobal.com/images/minecraft-dungeons-free-download_GM479516143.pdf
    • http://alroglobal.com/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
    • http://alroglobal.com/images/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • http://alroglobal.com/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
    • http://alroglobal.com/images/how-to-get-a-lot-of-robux_GM431946152.pdf
    • http://alroglobal.com/images/coin-master-free-spins-haktuts_GM406889139.pdf
    • http://alroglobal.com/images/www-robux-redeem_GM431946152.pdf
    • http://alroglobal.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://alroglobal.com/images/free-robux-safe_GM431946152.pdf
    • http://alroglobal.com/images/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004da8.bin
91827ac1a1c688540cd4bd4721ea53701f7a3d2f3de6a20a62abbddc82e5b1a8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA8 25172 bytes
font_01_sfnt_off000086bf.bin
3f0a138dc1c53e6f24b97f3903d103c9cbf3b7b8ac6147b742e3079fe9b0a3f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86BF 3804 bytes
font_02_sfnt_off000093fe.bin
f03f84e40d510781fd9acf302c96448e3582cb87a5c2d27401c18c9e1d195815		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93FE 18788 bytes

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