Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd616d18451f03be…

MALICIOUS

PDF

56.7 KB Created: 2020-08-06 04:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fa82b22955a0a92a905d6cf4eb096a1 SHA-1: 67be18945a62feb0ee04acfeaa2cff41b7367dcf SHA-256: cd616d18451f03becae16d87684f47e54105cdf8456d4465f8a8b4748501afe6
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which are hosted on Shopify and appear to be part of an SEO link farm. One of the primary links redirects to a known malicious redirector at 'ttraff.ru'. This indicates the document's purpose is to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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.ru/pify?keyword=australian+aboriginal+religion+pdf In PDF document text
    • http://files.legacy-318.com/uploads/1/3/1/3/131398324/kaziwu_xupunidadudibo.pdfIn PDF document text
    • http://files.vesselartsco.com/uploads/1/3/1/3/131381204/5698121.pdfIn PDF document text
    • http://files.jugglingforjustice.org/uploads/1/3/1/4/131483440/d311f811bb407.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/rigunurugekuromokufal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/kisubigasona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/66793194612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4908/2261/files/viwisuposunilujoxinaxanap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/munixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/core_critical_thinking_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/starbucks_training_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9074/7295/files/gejejiwiwaromuwogomajaxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/luvedutebomufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6192/7318/files/6052128510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0655/7340/files/lil_wayne_carter_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/jisalomonowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jerozex.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 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA123 5336 bytes
SHA-256: a8beacdcd4f6a2398619c2ac5e5736eb6c506b649f627898cbb436c7a15c7b5c
font_01_sfnt_off0000b352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB352 10260 bytes
SHA-256: f212fd903fe991f2b87cea5948c323edb893f85ac98d02d552cbf9da4f3ddeb9

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