Malicious PDF — malware analysis report

Static analysis result for SHA-256 1533d170cfa1809e…

MALICIOUS

PDF

43.5 KB Created: 2020-08-12 00:45:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 456d6a78cd90ae04d30551f2ce12e932 SHA-1: 22b063014e9addd5b0c8e4dce072466f6b8fc44d SHA-256: 1533d170cfa1809ee46814249b61b281211599ec9f50412730131cf194d64391
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, includes the primary malicious URL, suggesting a lure for phishing or malware download. The presence of a large number of external PDF links further indicates a link farm or SEO manipulation tactic to distribute 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=annihilation+method+pdf In PDF document text
    • http://files.denny-divinelanguage.com/uploads/1/3/0/7/130776327/7b0c2b7a.pdfIn PDF document text
    • http://julun.wanderingrae.com/uploads/1/3/0/7/130738950/fatotovitopaxi_kibumo.pdfIn PDF document text
    • http://files.ibbyireland.com/uploads/1/3/1/6/131606397/2315264.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/1/0431/9058/3458/files/elementary_statistics_solutions_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lokilus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2771/files/47333701747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6133/7494/files/29422925577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5597/0454/files/garobazipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/nazopopuzolelunaginimoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9001/7430/files/lidujasevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1481/4885/files/calendario_mundial_rusia_2020_hora_chile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7805/0201/files/jipipizukif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5227/7670/files/sopenanewelenipuximudijop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/29612017264.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 3

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_off00006dda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DDA 4996 bytes
SHA-256: 6516a41fe52f8a0e744fad52b62e5ed44043cb54ad6bf6845951f6525b7466d1
font_01_sfnt_off00007eb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB0 10144 bytes
SHA-256: 1a15fac390684a74d9a3cd51a737310246f6fe9d65e6926b285288e159c13c42

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