Malicious PDF — malware analysis report

Static analysis result for SHA-256 03bb2a1141b8ec61…

MALICIOUS

PDF

49.8 KB Created: 2020-08-02 02:04:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d1632924a390626b2fdf49212f0014e SHA-1: b5c8dd3b0ffd1db315e4e316658c2a023f9bf0d0 SHA-256: 03bb2a1141b8ec61690e3b024aca0d01d782499e8ccf7e0644523cac76734e18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to redirectors and SEO link farms, indicating a malicious intent to drive traffic to potentially harmful sites. The ML classifier strongly flagged this PDF as malicious, and the presence of a known malicious redirector URL reinforces this assessment. The document body, though heavily obfuscated, contains the malicious redirector URL, suggesting it's used as a lure.

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=lua+for+loop In PDF document text
    • http://files.damienquinnfolksinger.com/uploads/1/3/1/3/131380889/sexurudu_pogez_mumepotivefeji.pdfIn PDF document text
    • http://files.nativetrailblazers.com/uploads/1/3/0/9/130969238/ecb5b50713.pdfIn PDF document text
    • http://files.elifebiz.com.my/uploads/1/3/2/6/132695200/sunuvisajuz_katesurefikoju_rusowere_nurovaguwapug.pdfIn PDF document text
    • http://files.alexbaileydillon.com/uploads/1/3/1/6/131637131/f7942dd97.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/1/0430/9241/0525/files/podif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/31559049334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0361/7173/files/rokukoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/48341569680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/72930359648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9960/9505/files/vomizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/50802685808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/fimobuxuwazosifowimelib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2073/7950/files/70629602424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/3789906022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9648/8613/files/21656140462.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 3

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_off000080d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D0 4656 bytes
SHA-256: e7ba535c43d2e7eb8ff9acf151ffd7e9b1e37603c1ecf72b8836088d9983db7d
font_01_sfnt_off000090bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90BC 13004 bytes
SHA-256: 50b952e787761abbf954299391ee822e3f6ba40ee972887c5dbc6922799f9417

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