Malicious PDF — malware analysis report

Static analysis result for SHA-256 c034f8d15591632c…

MALICIOUS

PDF

38.6 KB Created: 2020-08-11 00:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b51733a295699f0ac92acbdaf0253d5 SHA-1: 7b7fedf24e95545f5e4f8722ff777eb9d4e95b8e SHA-256: c034f8d15591632c661d5c3804fa86d1068cde476ba0892806741a3def8983eb
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to ttraff.com, suggesting a link farm or redirection to malicious content. The document body, though heavily corrupted, contains the same URL, indicating it's intentionally placed to lure the user. The primary attack pattern involves directing the user to a malicious URL, likely for further exploitation or phishing.

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.com/pify?keyword=movie+themes+for+brass+quintet+pdf
    • http://files.jojoscelebrationcakes.com/uploads/1/3/0/9/130969731/fatoda.pdf
    • http://zomuwuwed.riverrockgems.com/uploads/1/3/2/6/132695278/1885065.pdf
    • http://files.joannsnp.com/uploads/1/3/2/6/132681452/f905aa7.pdf
    • http://files.anniesshineandsparkle.com/uploads/1/3/1/8/131856827/nalofa-lejubewedofo-ratevi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/33206440307.pdf
    • https://cdn.shopify.com/s/files/1/0432/0215/0557/files/7949972577.pdf
    • https://cdn.shopify.com/s/files/1/0439/3664/5275/files/zemixad.pdf
    • https://cdn.shopify.com/s/files/1/0432/1257/0787/files/64400525972.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/solid_liquid_gas_worksheet_2nd_grade.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/rupegofapuvazuvu.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/oll_algorithms.pdf
    • https://cdn.shopify.com/s/files/1/0435/8340/6243/files/1192132477.pdf
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/bivitexedojutobimew.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/zufij.pdf
    • https://cdn.shopify.com/s/files/1/0431/8412/8151/files/pesemasovowevib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.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_off00005776.bin
f4f18ea43c4aad3de618b40af72c878400d2f742b0b22f8a3f406cd9d80abb87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5776 5580 bytes
font_01_sfnt_off00006a4d.bin
a494cc575ae0283042345fa282832c2cd757d83cc22b8e8d4eb0aec21e807a46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4D 10376 bytes

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