Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7faa8e67f35a2fb…

MALICIOUS

PDF

37.1 KB Created: 2020-04-02 00:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4cfa40af68f83c315a5c84b6dff302c9 SHA-1: 4ec77862e22167f9904b120ca9c9681da753df3f SHA-256: e7faa8e67f35a2fb32f250f57e3ea4e7c563378ec665b27405fd77f1ab82863b
62 Risk Score

Malware Insights

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

This PDF document employs a link farm technique, embedding numerous URLs that masquerade as free book downloads. The primary goal appears to be directing users to external sites, likely for further malicious content delivery or phishing. The heuristic firings indicate a deliberate attempt to create a large number of external links within a small PDF, characteristic of SEO poisoning or traffic redirection schemes.

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://cookiejocakes.com/uploads/1/3/0/7/130739693/130739693.html#sufism+books+free+download
    • http://upperperktennis.com/uploads/1/3/0/6/130640051/zugubesix.pdf
    • http://knowledgeisempowering.org/uploads/1/3/0/3/130323659/musagufigelexilevoku.pdf
    • http://silenusentertainment.com/uploads/1/3/0/7/130739131/giwugotan-paxaxasujopag-jadivavegivunud.pdf
    • http://fudool.com/uploads/1/3/0/5/130540097/zujijemubujapuxesil.pdf
    • http://randdsockco.com/uploads/1/3/0/3/130323454/wovazu_wikonifot_mivirimefodigeb_losozutememebim.pdf
    • http://covenantlifemicchanover.com/uploads/1/3/0/4/130483230/xijikijavikaxa-sojodixujodo-fenufanuxef.pdf
    • http://ellisendeavours.com/uploads/1/3/0/7/130775978/155774.pdf
    • http://changraphics.com/uploads/1/3/0/4/130435985/e18e48f2a2.pdf
    • http://ledljos.com/uploads/1/3/0/5/130538931/6183670.pdf
    • http://sigmachialphapi.org/uploads/1/3/0/6/130621896/bakuxinifig.pdf
    • http://jonahwolfraim.com/uploads/1/3/1/4/131453145/1151755.pdf
    • http://mta-sts.mail.yoginidani.com/uploads/1/3/0/5/130550830/63178.pdf
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006847.bin
45801515d11b0bcfc44181fbd059ccb1a2099dd2d3761c8a647560148075d6a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6847 8348 bytes

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