Malicious PDF — malware analysis report

Static analysis result for SHA-256 160494790c060aff…

MALICIOUS

PDF

34.4 KB Created: 2020-08-19 03:32:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c995dd498709ec69fcd00790c9e4a708 SHA-1: ed2ff970e7580aed49d325c1521659aeb8d1a7d6 SHA-256: 160494790c060aff11b2e5d58f2de6c2bdeffccdeb5b9a94404ced593c6e4170
194 Risk Score

Malware Insights

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

The PDF contains a link farm and redirects to a malicious URL, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the target URL and references to reviews, suggesting a lure to entice users to click the malicious link. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=kiruna+guidetur+reviews In PDF document text
    • http://files.milesforcf.org/uploads/1/3/0/7/130738614/8fa7a8c92fed09.pdfIn PDF document text
    • http://pobanad.yukimuli.com/uploads/1/3/0/9/130969352/b1966e6b.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/1/0431/7757/4562/files/81583548003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3228/9175/files/94033703574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0399/2485/files/29370920231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4798/5053/files/motir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/camden_yards_seating_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6952/2599/files/da_form_1380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6418/1404/files/dabasaloresifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2093/4558/files/tadudepekiwebapidef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/39428271307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1538/9855/files/cable_tv_channel_package_price_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0742/files/33408941216.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 1

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_off00004af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF2 5080 bytes
SHA-256: 257eb8f7a331cedbe7de9cd8f4ed697fb78cb7ff0465012ed94e9a93eb816ba4
font_01_sfnt_off00005c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C51 9600 bytes
SHA-256: 7d99a623cf3114b404eb8fb19d8bf49fd9a452c3d01ea00c4da41326a599bd83

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