Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17d4c8cf837ef8b…

MALICIOUS

PDF

48.5 KB Created: 2020-07-24 19:42:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb575fb809004d2ca35b8c573b68f7ab SHA-1: cea96770cfb9cc7583102f46c7470d7cc4e7ec54 SHA-256: f17d4c8cf837ef8ba1c428d60ccd79def11b0a6c87dc291e48ee8df11e60bcb5
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with one identified as a malicious redirector. The document body, though partially corrupted, contains text related to 'Metformin 500 mg cause weight loss', suggesting a lure to trick users into clicking the malicious links. The ML classifier also strongly indicated maliciousness.

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=metformin+500+mg+cause+weight+loss In PDF document text
    • http://files.chatteriemainecoonroswell.com/uploads/1/3/0/7/130738806/6066150.pdfIn PDF document text
    • http://files.gilliantorckler.com/uploads/1/3/0/8/130874629/gomenevidi-kinepowa-xasokipa-xupuzateseroji.pdfIn PDF document text
    • http://files.566westadams.com/uploads/1/3/1/8/131857540/764da.pdfIn PDF document text
    • http://files.sonjakolstoe.com/uploads/1/3/0/7/130775917/4020687.pdfIn PDF document text
    • http://files.honour-our-troops.org.uk/uploads/1/3/2/7/132712251/1916042.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/1/0434/0957/1997/files/86317474320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/46723565777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3895/files/25098823856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50833930904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5860/9819/files/venutol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/65141400873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8351/2473/files/64409781800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0942/6079/files/86107675184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/pokudojorawesudofivudilab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5408/8871/files/96026267528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2264/6422/files/kerofonifaxurefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2912/6550/files/wotifib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/47832824318.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_off00007dd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD5 5540 bytes
SHA-256: 07cff54304b455087a6861b554055ffbc2ba72532f4c31067b9a3084af81a2d8
font_01_sfnt_off0000909d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909D 10520 bytes
SHA-256: 004ef659267e84d91b317ba60e7df72ad8ba6dfce561585375baaca98baac53c

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