Malicious PDF — malware analysis report

Static analysis result for SHA-256 421347e69a158091…

MALICIOUS

PDF

58.9 KB Created: 2020-08-25 16:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1889ca5f6289d037dc2096125b02edbe SHA-1: cf92c4494b1489d16dd54bf09c2a52a4ff84e1cd SHA-256: 421347e69a158091db8805fb6b42404aadbd4d8315c8001e53b557eaa56cd58d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring the user to click the malicious link, which is likely part of a phishing or malware distribution scheme.

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=bossmobi+instrumental+songs In PDF document text
    • http://files.eugenechislenko.com/uploads/1/3/0/7/130740530/4169637.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/1/0433/0687/7080/files/mevebetivegukubevam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5256/files/2513149450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/sebozidolizibomabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/catering_management_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6502/4416/files/manual_book_calculator_casio_fx-_991ms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/75894667657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6405/1100/files/bululisibip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/62154868700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/28015499388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8564/3419/files/isbd_guidelines_bipolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/selling_price_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3323/9457/files/capitulaciones_matrimoniales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0870/5187/files/spherical_bearing_size_chart.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 2

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_off00009614.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9614 5076 bytes
SHA-256: 85047e33a5d48f50be2501356fab62877233ff2891f79f338c8adcd08ff08f9b
font_01_sfnt_off0000a732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA732 13112 bytes
SHA-256: 5b12140fea61f87f834ca5649700aa6cd59c422c3b23e02b8d309e904650d542
font_02_sfnt_off0000d08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD08B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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