Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc028aa4a4f23568…

MALICIOUS

PDF

38.1 KB Created: 2020-08-28 08:21:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 64c01a4a8f285f26ea560c01e54f4525 SHA-1: 2c33f450335646ed142201a261caf088212b53d6 SHA-256: fc028aa4a4f2356812a5966b69108d4ed3b3d1767c283a5762f08e679be5cdff
120 Risk Score

Malware Insights

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

The PDF contains a link farm with a high number of external links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL as the malicious redirector, suggesting the intent is to trick the user into clicking it. This likely leads to a phishing page or a malware download.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/pify?keyword=baby+leatherback+bearded+dragons+for
    • http://files.studiolegalecalvisi.com/uploads/1/3/2/6/132695543/kedetok.pdf
    • http://files.zendenmissoula.com/uploads/1/3/0/7/130740012/8258544.pdf
    • https://cdn.shopify.com/s/files/1/0430/5318/7221/files/most_beautiful_places_in_the_world.pdf
    • https://cdn.shopify.com/s/files/1/0435/1416/7450/files/lemmings_game_download_safe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9259/0236/files/outlook_signature_template_2016.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/lotorebokejeviligogakig.pdf
    • https://cdn.shopify.com/s/files/1/0439/1917/9931/files/wekizolugenubogorobutiga.pdf
    • https://cdn.shopify.com/s/files/1/0433/8958/3514/files/jevijefotopekijutesol.pdf
    • https://cdn.shopify.com/s/files/1/0431/3530/3831/files/15895468538.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/lakipemekorefevilaxibeg.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/42410613325.pdf
    • https://cdn.shopify.com/s/files/1/0432/8649/5400/files/77233907035.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000554c.bin
42a6b11694b4033a5027ab1a5bf74296c488c15c44f21e5380ed51a9a321675b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x554C 5640 bytes
font_01_sfnt_off00006875.bin
e3eeb36058a8631476f8688a55dce5aa92a883ad867c9525b36dd0e13c826e42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6875 10384 bytes

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