Malicious PDF — malware analysis report

Static analysis result for SHA-256 daa89cc73eaebddd…

MALICIOUS

PDF

47.2 KB Created: 2020-08-11 20:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 133836d9aa8ce86d567f8cc13f2493d1 SHA-1: e9e1d92e45353ab75c9a4fd4815e3f0f2f5a6ada SHA-256: daa89cc73eaebdddad5dfca8452542f2190b83177138d592484ff8ed8e80b3c0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'free bible study lessons pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

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=free+bible+study+lessons+pdf In PDF document text
    • http://files.hridiancenter.ca/uploads/1/3/1/6/131606275/zenajolegefaxanul.pdfIn PDF document text
    • http://sapupixo.atouchofsilver2.com/uploads/1/3/1/4/131437402/febewejiniji.pdfIn PDF document text
    • http://mesukobu.hepcatclassics.com/uploads/1/3/0/8/130813834/e4090c87f53ab.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/1/0433/4590/3774/files/20136573715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4021/files/4116428300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/66886338976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0772/0093/files/mijifibul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedifoniwupub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/administrative_manager_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6720/2974/files/15833814654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/85182592922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4327/4395/files/wiworurazos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/givufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/34477324618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7798/2626/files/29387660778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/93482239815.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
🗂 Part of campaign: emilyjaneart.co.uk 3 samples

Related samples 1

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_off00007cf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF1 5024 bytes
SHA-256: 840be2ded28f078978dae6e2c0e9797bdd2b23004754933c2013675db0fc9c3a
font_01_sfnt_off00008e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E13 9884 bytes
SHA-256: 38fe7e5fa5b9cef79ccff8bd8a8f53f280cf38840af85d95b45d761944b2aabc

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