Malicious PDF — malware analysis report

Static analysis result for SHA-256 99b0eb1d436d9024…

MALICIOUS

PDF

41.3 KB Created: 2020-08-04 06:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 24c53364817e6b7914ee55a14f930c26 SHA-1: a96bdf57be1ad1346fcaaecde91a74a88acb42a7 SHA-256: 99b0eb1d436d902485c2dc341a225b5db053f93d59819a8dd9716eef2a575e6a
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One prominent link, 'https://ttraff.com/pify?keyword=popsicle+stick+birdhouse+plans+pdf', is identified as a malicious redirector. The document's content, though heavily obfuscated, appears to be a lure related to 'popsicle stick birdhouse plans'. The primary attack vector involves tricking the user into clicking the malicious redirector URL, likely leading to further malicious content or exploitation.

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=popsicle+stick+birdhouse+plans+pdf In PDF document text
    • http://files.bluehorizoncvs.com/uploads/1/3/1/4/131407029/pivukogopuzite-gudokidiwufib-ruzamagibi-belapego.pdfIn PDF document text
    • http://files.designfea.com/uploads/1/3/1/1/131164295/fa66105.pdfIn PDF document text
    • http://files.cobilconnect.com/uploads/1/3/0/9/130969853/6ea8d66a.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/1/0433/0127/3758/files/83599819462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/33335608555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8090/files/73384767023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0348/6103/files/50873577807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6534/3126/files/lajokogedirolitugusi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4907/3312/files/65939805176.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3229/files/76409731250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1018/6654/files/somenomorew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/vijunax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6877/5841/files/morin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8080/0674/files/siemens_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7693/5073/files/raresozivegepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/bodologuzufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/nikizopukiramikutodipolut.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 8

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_off00006257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6257 5448 bytes
SHA-256: 0ccc8a556b6f1860c2d7da2a06b3490fa6b8b8eea53e9d9939b75191386baf23
font_01_sfnt_off000074cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CD 10404 bytes
SHA-256: 44bff5a2357f85b734123d4d427d5b2b0b82787d28645bf0786d669cc849cfd4

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