Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5c0c6610cf02ec2…

MALICIOUS

PDF

37.2 KB Created: 2020-04-20 22:29:43 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 68900d8b74578252d81c36e6b65f6cde SHA-1: c7366841d75161366f078d323acfa0b284f0a296 SHA-256: a5c0c6610cf02ec26626c630f458a5d2d83e3b87bdabe20ca647800795203e49
62 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a link farm, indicating a large number of external links designed to manipulate search engine results. The document body, though heavily obfuscated, contains text that appears to be a lure for a "video song". The primary URL extracted, http://4keepsake.net/uploads/1/3/1/4/131408172/131408172.html#chori+goriye+banjara+video+song, likely leads to malicious content or a phishing page. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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://4keepsake.net/uploads/1/3/1/4/131408172/131408172.html#chori+goriye+banjara+video+song
    • http://dragonsongcreations.com/uploads/1/3/0/3/130379342/2900679.pdf
    • http://sycoff.com/uploads/1/3/0/5/130589338/netexof-datujepunoloj.pdf
    • http://lakekathleenmachine.com/uploads/1/3/1/6/131636589/97df7dd7933d668.pdf
    • http://golfindianvalley.com/uploads/1/3/0/7/130739269/tivibaberoz_figomili.pdf
    • http://lydiaholcomb.com/uploads/1/3/0/2/130270864/pokijonurafadij-kazadibawefuge.pdf
    • http://tcyflbears.com/uploads/1/3/0/5/130588346/fovubumuvire-vukip-zoxifudo.pdf
    • http://agike.com/uploads/1/3/0/6/130639152/5f4059eba79ca2.pdf
    • http://sycoff.com/up
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005589.bin
38a178297f6b55a7c96d6e4d1281d7adc12f42b4dee421aa6e7eb6df9fac7d2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5589 7652 bytes
font_01_sfnt_off00007361.bin
fec7f76812290e64beb15f8ae038a0dbc3d10a5f52e6530d7bd82da3781390c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7361 7880 bytes

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