Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca28e6d1ca14c460…

MALICIOUS

PDF

56.9 KB Created: 2020-08-09 00:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 808f02e137482eab086956b76d53686a SHA-1: 7ebba57dd16adae242dc3d01ee89ded9e2b57f10 SHA-256: ca28e6d1ca14c460fedfd381165a2528b17703b255e8f6ebbb6b31bbc74eea18
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=jewellery+making+tutorial+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0435/5453/7624/files/arguments_for_death_penalty.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting an attempt to disguise malicious content as a tutorial.

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.cc/pify?keyword=jewellery+making+tutorial+pdf In PDF document text
    • http://files.teachingkidstothrive.com/uploads/1/3/1/8/131856715/8596130.pdfIn PDF document text
    • http://files.malabagoo.com/uploads/1/3/0/9/130968996/64069425bc7fdf.pdfIn PDF document text
    • http://files.rootsva.com/uploads/1/3/0/7/130739328/6883693.pdfIn PDF document text
    • http://kobiri.lincolnfencecontractor.com/uploads/1/3/1/8/131871674/xababuk-keriliri.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/1/0435/5453/7624/files/arguments_for_death_penalty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6422/0055/files/8135060760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/south_brunswick_high_school_calendar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/wavedakozenawifuzajege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/taotao_carburetor_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1684/5469/files/79839344125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/69781268172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0326/3650/files/zorulokavoduvuwopufumiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8207/2743/files/83590285639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/neet_pg_2020_application_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20726054751.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_off00009fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FB3 5428 bytes
SHA-256: 78161fe2d2a5db8b07dbc22a84c2c3d10d12a3c96d1e832e843892c90b7a0f28
font_01_sfnt_off0000b234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB234 10580 bytes
SHA-256: e61da0c72a1313350b57d93415c5f91f4bc4e2dcfb25b0fc7449b33019a1ecfd

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