Malicious PDF — malware analysis report

Static analysis result for SHA-256 609687463728bdb2…

MALICIOUS

PDF

170.7 KB Created: 2020-08-07 07:23:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9963fb758328c8735a961d6bef7fb08 SHA-1: e1247d003e2b554cc0a9dd781abb1b23d7d48076 SHA-256: 609687463728bdb2d103692d8defaac49f070b7b8d98c0c645881ca1333bcff1
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to 'Pseudomonas aeruginosa infection' and embeds a malicious link pointing to a redirector. This redirector is designed to obscure the final destination, which is likely a phishing page or a malware download site. The ML classifier strongly indicated maliciousness, and the presence of redirector links suggests an attempt to deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=pseudomonas+aeruginosa+infection+pdf In PDF document text
    • http://files.spartanburgband.org/uploads/1/3/1/0/131070508/zijosamiwetematefu.pdfIn PDF document text
    • http://files.foundationforpoliticsandleadership.org/uploads/1/3/0/7/130739076/mulejugulivokadu.pdfIn PDF document text
    • http://files.spacetigertattoos.com/uploads/1/3/0/7/130739951/movojetinodot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/94346017569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/faxaxeripifamogezawobud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9213/0458/files/26612861691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6925/1492/files/17302515501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/fikekazaforopejefis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2456/9752/files/93215950367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/najanamodavuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1909/8523/files/tilutudedejisimusapiwotaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89462818099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0108/4064/files/nuweresidunesimal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24D84 5328 bytes
SHA-256: 0883d66c3639ad814074ed6875ef70e64f73d6cc78e13f031881d0c1249054e6
font_01_sfnt_off00025f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25F82 15180 bytes
SHA-256: 716638905b113f74753b04011a3a2c45efe1f098dc13ffedd8543508a0d0afc3
font_02_sfnt_off00028ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28EC4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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