Malicious PDF — malware analysis report

Static analysis result for SHA-256 1802ea870114f140…

MALICIOUS

PDF

46.6 KB Created: 2020-08-01 17:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c519379fd6578237f8361456f0f18d5 SHA-1: be994fcd8deb23e5c719e5e0b36c3c176012ca54 SHA-256: 1802ea870114f1400fba6a8666977f2d8cf54c158aea8f0cbc8b75a2a87d3c6e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service known for malicious activity. The ML classifier also strongly indicated maliciousness. The primary malicious URL identified is https://ttraff.ru/pify?keyword=sample+in+a+jar, which is used in conjunction with a link farm strategy to lure users into downloading further 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=sample+in+a+jar In PDF document text
    • http://files.davideweed.com/uploads/1/3/2/7/132740327/nevotiwowi.pdfIn PDF document text
    • http://files.itswhereyoubelong.com/uploads/1/3/2/6/132695258/besowinufezelejo.pdfIn PDF document text
    • http://files.spotlightseniorserviceslasvegas.com/uploads/1/3/0/8/130814283/1811894.pdfIn PDF document text
    • http://files.betsyrose.org/uploads/1/3/0/7/130775261/givowa_sovubavisu_gebumu.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/1/0432/0090/5373/files/2007_vw_jetta_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/35344662152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3570/2949/files/zopaworodumalupiwemefag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/zamuteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/sezofaxojetur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/dagipural.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8475/8696/files/2143229439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/delabukobudeseboju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/rajeruf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/kunamujogebokit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/bezifemulejeg.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_off000079e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E1 4968 bytes
SHA-256: eb4fc7dee3a263b72c2e009a16b91cfc8cc78ec055728a28e22557034cabd4f6
font_01_sfnt_off00008aad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AAD 10408 bytes
SHA-256: b18640c2098c2e1a79eb45a5e663eb0dbb58f1d8d78dc825fcfd4c3428711c5e

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