Malicious PDF — malware analysis report

Static analysis result for SHA-256 89fa1ac3e8a597b1…

MALICIOUS

PDF

46.0 KB Created: 2020-08-07 19:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92fb7a7b58bc1d8feb49017a1532d97b SHA-1: 0a86ebfaaa3d997a70f457938d924a95fc3dc2e5 SHA-256: 89fa1ac3e8a597b1bdb135e217a4a58a58b8f56e8245ab0687cf3a3be9272a2c
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, 'https://ttraff.cc/pify?keyword=microbial+genetics+and+molecular+biology+pdf'. This URL is designed to lure users by appearing to offer academic content, but it redirects to malicious infrastructure. The presence of numerous links to PDF files hosted on Shopify, combined with the malicious redirector, indicates a phishing or social engineering attempt to drive traffic to harmful sites.

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=microbial+genetics+and+molecular+biology+pdf In PDF document text
    • http://files.ostervillegardenclub.org/uploads/1/3/2/8/132814848/japuxukanidavowoda.pdfIn PDF document text
    • http://files.morandoopress.com/uploads/1/3/2/8/132814220/6664212.pdfIn PDF document text
    • http://files.moonflowerproduction.com/uploads/1/3/1/3/131378932/naxufapurokusoj.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/1/0429/6700/7386/files/nitum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9714/4990/files/kerulageripafawibij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zorosibal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3706/5370/files/63846216312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74098669839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8530/7808/files/96933465119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0572/files/demyer_neurologic_examination_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9723/5363/files/17144192230.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0184/7708/files/vshare_ios_9._0._1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/volide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/zikugivatepixegoxofe.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 6

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_off00006685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 5724 bytes
SHA-256: 6b397fcbd7ceac1739d9d800cbf79ac78764bb1f1ab71c47ce8fce29d100b04d
font_01_sfnt_off000079fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FC 15116 bytes
SHA-256: bc377c1d387724d734cf2188bb8191155001c9de665f33de07ca413a849eb042

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