Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd57634e14379550…

MALICIOUS

PDF

43.1 KB Created: 2020-08-15 03:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 005e0e1609cf806daa0eb407f0374805 SHA-1: 6f51a540ad0808d651276bd4054f4e7303ef95ca SHA-256: cd57634e143795502ec09fc2bf3784533c2e1c0150c0de88bd39c3636863dca9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=dance+class+attendance+template'. This URL is presented within the document body, disguised as a dance class attendance template. The PDF also contains a link farm heuristic, indicating a large number of external links, many of which point to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through a deceptive document title and a malicious link.

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=dance+class+attendance+template In PDF document text
    • http://files.attitudeofservice.net/uploads/1/3/0/7/130739039/pijobideluzosi_nusudivegibor.pdfIn PDF document text
    • http://files.relst-uhag66.com/uploads/1/3/1/4/131406849/9287563.pdfIn PDF document text
    • http://files.finequalityrugs.com/uploads/1/3/1/3/131384777/mivovedagan_kezag.pdfIn PDF document text
    • http://files.janetan.net/uploads/1/3/1/4/131406288/xosakelarusopeg.pdfIn PDF document text
    • http://tilugobit.gloriousbibleinternational.com/uploads/1/3/0/7/130775680/kuturesufidodo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9204/1118/files/74731736592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1976/2855/files/nezowijajezedulilogux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3820/files/26582957456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6744/0290/files/26342180674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3458/0891/files/39278518939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0784/8096/files/5th_grade_common_core_math_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9036/8929/files/supazolototivesul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1609/3849/files/54254667435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5501/4297/files/kopizarikibuxuzusiba.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000602f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602F 4752 bytes
SHA-256: 96a3a984480f225ff5892c7b38dd5cfa7fb7329270ded7788833a536c93dbbf2
font_01_sfnt_off0000703b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703B 9880 bytes
SHA-256: 1abf6a58f766792eacadef66f8a48dc435ec92dd5626d4426b22999e9e813d53
font_02_sfnt_off000091e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91E3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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