Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09f47a80d406a51…

MALICIOUS

PDF

47.4 KB Created: 2020-07-29 12:29:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8bd5d3a794c8ddce29a2f562860e0a1 SHA-1: 2741bd9da18d20db6077279a5b3e388a7ad619ed SHA-256: f09f47a80d406a51fbd49580040da66c56bebf6e479061c164c989383b55032b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'low back exercises sciatica pdf'. The presence of a PDF link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites, likely for phishing or malware distribution.

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=low+back+exercises+sciatica+pdf In PDF document text
    • http://files.christinamarshalllmt.com/uploads/1/3/1/4/131406537/1768102.pdfIn PDF document text
    • http://files.quickstoptyres.com/uploads/1/3/0/9/130969148/d5158a3fb.pdfIn PDF document text
    • http://files.westgatechildcenter.com/uploads/1/3/1/4/131438708/60901a4214874.pdfIn PDF document text
    • http://files.pitdawghydro.com/uploads/1/3/1/0/131070459/02d26dac77c.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/1/0435/8438/9275/files/gusufuregatino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/62191001243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/93246502705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0011/1009/files/mofuvinogazami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4900/files/56123326915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/1269078440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5795/4464/files/wixekerameve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/nozukugum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4093/0968/files/gelexowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0235/4070/files/mibimidurinugexotax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1826/3464/files/xabofimekabadikoxotal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/felumerumukifowefagexom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2202/3847/files/18688614054.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_off00007d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D05 5104 bytes
SHA-256: e9aa8d4b8d48a01af03064bc330358848e4c6bd0aac8b2dc472829d9ee395072
font_01_sfnt_off00008e89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E89 9864 bytes
SHA-256: a9cd129d62f9c48d26a0a970294a100a1dd36e382002aa6e9448fc205e0a21f6

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