Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1daa90430bb582c…

MALICIOUS

PDF

40.2 KB Created: 2020-08-02 19:59:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fb5645dc958c00252ade6d8d988d2d9 SHA-1: 2688c78f87ba3cc89b97c0ebd1817e048f794073 SHA-256: a1daa90430bb582c2278c711b5c96aacf7ff5e20fe47bc0b440bb259b050a2ec
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF redirector link pointing to 'https://ttraff.cc/pify?keyword=tiamat65renee%2540+yahoo.+com'. Additionally, another critical heuristic detected a large number of embedded external PDF links, with the first being 'https://cdn.shopify.com/s/files/1/0435/3762/9348/files/18608993169.pdf'. These findings indicate the document's primary purpose is to lure users to external, potentially malicious, resources.

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=tiamat65renee%2540+yahoo.+com In PDF document text
    • http://files.630shistory.com/uploads/1/3/2/7/132710697/6010257.pdfIn PDF document text
    • http://files.melodymoonbrooke.com/uploads/1/3/1/3/131384468/823994.pdfIn PDF document text
    • http://files.bluegrassbelties.com/uploads/1/3/1/4/131454352/josapizetememobeso.pdfIn PDF document text
    • http://files.collegepark4u.org/uploads/1/3/0/7/130739415/9700813.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/1/0435/3762/9348/files/18608993169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7571/4715/files/bovonenejov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6816/1176/files/pubamopijasux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6876/5848/files/71425148971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8995/8814/files/6799539108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/46039180509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4764/9429/files/40574412132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6937/2576/files/magic_disc_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/lewakovud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/43628100296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajafaliwufenosikem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/bunevogisebuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8502/7746/files/xuputar.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 7

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_off00005e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E78 5524 bytes
SHA-256: afac7d0fdeb176f1913f4eeb97bb5ba50ec18545299ef8cb054a8e028d372b30
font_01_sfnt_off00007128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7128 10156 bytes
SHA-256: bebb902c03e94febf11ccd96b22fcf260db55a0df1af9bb8964e5159b88d5ed0

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