Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d5a8c1a8809f0d7…

MALICIOUS

PDF

43.2 KB Created: 2020-08-22 20:10:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e780a808e65e1a34c3f7513ec7ed950d SHA-1: a0d9cdbc86b63ce85dccb3536c063ce2825a7761 SHA-256: 1d5a8c1a8809f0d7908f365735036d308e0268b119d907a228c86a3444890222
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are likely part of a link farm designed to distribute malicious content or phish for information. The presence of multiple shopify.com and other sub-domain hosted PDFs suggests a coordinated effort to host malicious content.

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=essential+oil+diffuser+oil+guide In PDF document text
    • http://files.hinsdalesouthband.com/uploads/1/3/1/4/131483719/ravesowu.pdfIn PDF document text
    • http://supotapap.caitweiss.com/uploads/1/3/2/8/132814930/77724fae20db4.pdfIn PDF document text
    • http://jirak.pensionplanningsolutions.com/uploads/1/3/1/4/131409508/8e77eb348.pdfIn PDF document text
    • http://files.nickgatesart.com/uploads/1/3/1/8/131858044/tisuratisoke.pdfIn PDF document text
    • http://zokudaved.fieldtrip-ny.com/uploads/1/3/0/8/130873995/8892671.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/1/0432/4183/2615/files/tinkle_books_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/zobosifuxajigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5533/0966/files/92654490998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2530/0647/files/waiting_for_love_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/fivatowabowemigovomomivek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6367/0939/files/lokebagusalavuvidug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5797/0329/files/enseanza_aprendizaje_segun_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/sojeruv.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_off00006d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D23 5032 bytes
SHA-256: 8bd07ec74f425c9b17bb6180f45051bbbdbf41c184a889dc7d16100d5c3a1768
font_01_sfnt_off00007e47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E47 9940 bytes
SHA-256: 8012f8a82ec0ca9e3c54d3d48c64d2fce5756d91dba136e5e61eab4706ade12a

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