Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7db316b30f033de…

MALICIOUS

PDF

60.5 KB Created: 2020-08-19 17:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73f99689a815eabc7e1baa0f503f0206 SHA-1: 13beafa2f2bfcfbfb5fe86afa20d21e2ef7d43a6 SHA-256: c7db316b30f033de726c8887be97cb2a39f9548ce1e805682de8785e71b97410
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains text related to a movie title and the PDF generation tool, but no explicit instructions or further context for the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.cc/pify?keyword=pathala+bhairavi+old+tamil+movie In PDF document text
    • http://files.grahamenolablog.com/uploads/1/3/1/3/131378999/d27e09dde9.pdfIn PDF document text
    • http://files.mydecorandgiftrep.com/uploads/1/3/1/3/131383544/815c9.pdfIn PDF document text
    • http://korinewa.natureswaylabradorpups.com/uploads/1/3/1/3/131380505/1252908.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0552/5661/files/tivenikebozorufup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82973104521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6828/3294/files/weloxawedetome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/keranasozujepuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3273/7942/files/wukab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5161/3334/files/kanatib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/mosses_and_liverworts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6649/7960/files/javefudimoxadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/roosa_master_db_injection_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/kewenoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/93452501718.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C7B 5088 bytes
SHA-256: 90d12fe587246e62b104a05ddfd5e60730155c5d9bc22f81d7199a336e15e785
font_01_sfnt_off0000ad9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD9D 6112 bytes
SHA-256: 682d2aa437a8d05951a0d9241c8570147529137f0f444a4fb3624eb6b3d00159
font_02_sfnt_off0000c158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC158 10292 bytes
SHA-256: 826f4bbe3699904c508f798c0e8c6e8e69f0b7de423d5e0d9cdd154fed3958c4

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