Malicious PDF — malware analysis report

Static analysis result for SHA-256 78b6b01520404958…

MALICIOUS

PDF

39.9 KB Created: 2020-08-23 00:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e14db192a8f64651fc83c69a4a864d99 SHA-1: ce7beac304e3d86a0cac8484dd8733d9808bf628 SHA-256: 78b6b01520404958173b2b31aed6263c966243bb18c742c4ce17b074c2988d75
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to contain text related to a stadium pitch report, likely a lure. The presence of numerous external PDF links, including those to Shopify, suggests a link farm or SEO manipulation tactic to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.com/pify?keyword=feroz+kotla+stadium+pitch+report
    • http://tamoli.shadedroad.com/uploads/1/3/1/4/131437254/retebumuzakejife.pdf
    • http://files.midatlanticoceanplanning.org/uploads/1/3/0/8/130814121/sokogepetopem-sixiviwexaj-lobasibugog.pdf
    • http://fogef.fischerandcardamone.com/uploads/1/3/2/8/132814930/873131e7e7fce.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/dotutorarekasivenadi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/malice_book.pdf
    • https://cdn.shopify.com/s/files/1/0439/7904/7070/files/northern_thailand_guidebook.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94192334972.pdf
    • https://cdn.shopify.com/s/files/1/0432/2400/6823/files/wazikejelugoxasemalaxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6929/2188/files/35714866575.pdf
    • https://cdn.shopify.com/s/files/1/0463/4414/3005/files/11th_class_chemistry_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/lunogilalopad.pdf
    • https://cdn.shopify.com/s/files/1/0429/2299/9964/files/sexazasotawu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/67114558313.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/veruget.pdf
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/katangian_ng_retorika.pdf
    • https://cdn.shopify.com/s/files/1/0433/5065/5129/files/98881699159.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e0d.bin
075d81c8f062f4d368ad30d6d166154cabb50fc4e42b0f6bdfa24494f233c85c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0D 5380 bytes
font_01_sfnt_off0000703b.bin
7a71edbecc9038ccabac1844523cc65752ce5743e83202b5b1a4ce12bba0fe98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x703B 10084 bytes

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