Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb8a73a613e2c74…

MALICIOUS

PDF

36.6 KB Created: 2020-08-01 20:54:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd6615c2d406937e14014de726a4db31 SHA-1: 4aa2cb115b41092ef6e25f7a94ff0fa72dd9479b SHA-256: bdb8a73a613e2c748ceb9a4f2e33eec5ea732067112f279c4131fe9d5db96192
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL 'https://ttraff.com/pify?keyword=viva+la+bam' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and numerous other links hosted on cdn.shopify.com and other domains, suggesting a campaign to distribute malicious content through a large number of seemingly benign-looking PDF files.

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.com/pify?keyword=viva+la+bam In PDF document text
    • http://files.vintagefarmsuds.com/uploads/1/3/1/3/131398139/2611349.pdfIn PDF document text
    • http://files.advantageauburn.com/uploads/1/3/1/4/131407164/b674e8243a69.pdfIn PDF document text
    • http://files.selketsstuff.com/uploads/1/3/1/1/131164112/motanaxisixobo.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/1/0436/1060/3677/files/71254095463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/3140864093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0072/files/52491847168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/33512096689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/9991869644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/kepafosisin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0879/3510/files/merovitogipuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/85062432720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0066/8065/files/sazukuzoxufemagamuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/91696824439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7702/6463/files/busoterugumavisebuba.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E2 4720 bytes
SHA-256: 2e570c5f3450f19ff26a65dc1a5e132fb9e9ec0f4d2acb513e9e0141397c4703
font_01_sfnt_off000063ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EC 10040 bytes
SHA-256: f02b73835a24c000f2544d8f1d8121e7601cfaa2620a1948ee2891eb40927286

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