Malicious PDF — malware analysis report

Static analysis result for SHA-256 51f0ec2026e3346c…

MALICIOUS

PDF

49.2 KB Created: 2020-08-04 09:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7087e12f4456a2cf27ac687830c143ef SHA-1: d6f7ebadef5406428d5ddda6247619c4aeddc01a SHA-256: 51f0ec2026e3346c6e64b28084afdc8bc90d2a6d615f31992fceae878a212512
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=browns+2020+schedule+pdf`. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into clicking it. The PDF also contains a large number of external links, many hosted on `cdn.shopify.com`, indicating a link farm for SEO poisoning or distribution. No scripts were extracted from this sample.

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=browns+2020+schedule+pdf In PDF document text
    • http://files.fayephotographyblackpool.co.uk/uploads/1/3/0/8/130814636/supigoriluw.pdfIn PDF document text
    • http://files.champions4childrenswfl.com/uploads/1/3/2/6/132696104/nebabomenediwugikowa.pdfIn PDF document text
    • http://files.newworldtribe.us/uploads/1/3/0/8/130874143/6813ca.pdfIn PDF document text
    • http://files.paulaflach.com/uploads/1/3/0/7/130740141/8901646.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/1/0430/6278/8245/files/9189619454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/amputation_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6662/1094/files/kimajonekolaneretejaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2270/2999/files/81615955884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1959/2099/files/mikilikokinalonebuboreba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4904/9499/files/duzexejetekinefubolapulal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4859/8678/files/luxipasekazenomobiloxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/69602042665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5755/files/76776465248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2501/4685/files/nuzafazerisepakeruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/zemobiroxineva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4397/7366/files/pamuzakomokef.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 4

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_off00007a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 5448 bytes
SHA-256: 66129635eec281cd1bbae8aa0e2dc92ff12edda22a475ef7fd0408653f129c1d
font_01_sfnt_off00008ccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCD 13592 bytes
SHA-256: 7457a7faadc19492db78212765573c98bb3c3ca98e88fa1ec22ce73c56fbd672

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