Malicious PDF — malware analysis report

Static analysis result for SHA-256 6141973007028a47…

MALICIOUS

PDF

46.2 KB Created: 2020-08-02 14:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3700ceef1f0555e959a8a947a4eac568 SHA-1: ab26800c7da5462a3d592f490df9e5cd2ae48bb9 SHA-256: 6141973007028a4735d3d779232fafd68e29761f25d64eed74688e88091831ee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm and a redirector link disguised as a screensaver tip, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=turn+off+screensaver+windows+10 In PDF document text
    • http://files.henestrosastudio.com/uploads/1/3/1/6/131607467/nitokaxataz.pdfIn PDF document text
    • http://files.nudnikdesign.com/uploads/1/3/1/4/131438418/841a7.pdfIn PDF document text
    • http://files.lithgowagedcareltd.com/uploads/1/3/0/7/130775116/gevelugotuvano-setavuwefiwi-deloxiwafud-nuzepenexelapa.pdfIn PDF document text
    • http://files.yieldproagronomyllc.com/uploads/1/3/0/8/130813899/21e4c00ab6e827.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/1/0433/0687/7080/files/pajovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/72912747077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/55378763690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1871/4264/files/56617349921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5943/0047/files/tumorozixivip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/gojoriwatabifoban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/37235319124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87899810879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/96989597353.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_off0000762e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x762E 5280 bytes
SHA-256: 8ae1f0252125d8bf7c49f710098761aa72c1e309b87df658132f899cc30ffd13
font_01_sfnt_off0000884b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884B 10512 bytes
SHA-256: 3b4f743197c7a1fc023a98c2b906e4108a169fe97c3df54491df8da87f013545

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