Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3c3e9edd7ecd1bf…

MALICIOUS

PDF

33.4 KB Created: 2020-08-19 20:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 969bc183156e3167372a2bf872b1760f SHA-1: 5297698171f3c41c98fac4f5e3e994d2b1f57148 SHA-256: a3c3e9edd7ecd1bf7a2b47834a4dcd12cdc4db652aa6b6e922036d7d225c6aac
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with one identified as a malicious redirector. The heuristic firings indicate that the document is a link farm designed to lead users to potentially harmful content. The presence of the malicious redirector URL, https://ttraff.cc/pify?keyword=hosanna+hillsong+sheet+music, strongly suggests a phishing or malware distribution attempt.

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=hosanna+hillsong+sheet+music
    • http://files.cherokeecountyelections.com/uploads/1/3/1/1/131164076/2bf67b099d4f10e.pdf
    • http://files.jmdbehavior.com/uploads/1/3/1/3/131383860/xaripabor-bijumebada-bejovon.pdf
    • http://beferof.johnrowlandsongs.com/uploads/1/3/1/0/131070420/kuseg.pdf
    • http://gujog.ladymarigold.com/uploads/1/3/1/6/131606490/6236420.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62894204366.pdf
    • https://cdn.shopify.com/s/files/1/0437/4075/8170/files/bomadadaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/6776/0028/files/converter_para_word_candy.pdf
    • https://cdn.shopify.com/s/files/1/0427/9985/7823/files/jojepupotop.pdf
    • https://cdn.shopify.com/s/files/1/0447/8051/9590/files/rajasthan_librarian_question_answer.pdf
    • https://cdn.shopify.com/s/files/1/0430/6845/7113/files/buponapuzija.pdf
    • https://cdn.shopify.com/s/files/1/0434/3873/5517/files/bbg_vegetarian.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/tawejexusumevowejulugup.pdf
    • https://cdn.shopify.com/s/files/1/0429/3564/8409/files/vedic_mantras_in_sanskrit.pdf
    • https://cdn.shopify.com/s/files/1/0431/7554/2950/files/fazudano.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_off000045aa.bin
e0c1596c6d929c45186eaaf73d81f09038cdb6641714d6c977ccc2e09c325ba9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45AA 5076 bytes
font_01_sfnt_off000056c2.bin
ce4048e1278d2080ed277fae1228bd2a768e45e3547d4b4a70ca7dcb9207d0d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C2 9968 bytes

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