Malicious PDF — malware analysis report

Static analysis result for SHA-256 07af65c9403675da…

MALICIOUS

PDF

44.0 KB Created: 2020-07-27 13:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 649b53daea90ccd2df8147e602b8b3c0 SHA-1: 005603ad86592055fadcc6c00880489101e84bd2 SHA-256: 07af65c9403675dae4bc4bdec8c1a04dd5b996848b3c8831eeb38fd188d9fa7d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to a redirector service, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, suggests a lure related to a 'free printable 2019 calendar'. The ML classifier strongly indicates maliciousness, and the PDF redirector link heuristic confirms the presence of malicious infrastructure.

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=free+printable+2019+calendar+with+holidays+template In PDF document text
    • http://files.justintimeconsultancy.org/uploads/1/3/1/0/131070618/jenixuvif.pdfIn PDF document text
    • http://files.bfvh.com/uploads/1/3/1/4/131454102/8442946.pdfIn PDF document text
    • http://files.alexarodriguez.org/uploads/1/3/2/3/132303270/vigoluraxajulav-kenowi-pokep-fenekabevojuwo.pdfIn PDF document text
    • http://files.orchardvalleyhoa.org/uploads/1/3/1/4/131455680/06577f.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/1/0437/7473/8586/files/11081348349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7904/7070/files/4643101195.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/71937499929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8050/6791/files/48171340193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/5271807504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/volakimupudanidozuxuxata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/14067123391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5788/8932/files/49873131163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/bolutiwas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0800/8090/files/55890721494.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 5

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_off00006e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E77 5872 bytes
SHA-256: 1451dba35ba9711b88a12e4784b5aa2ceda7117ee52ad95d270299f7d1654b90
font_01_sfnt_off0000824b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824B 9540 bytes
SHA-256: 12e66113549d4d442d2ec48e4ed9f3fc17254a4819ae923cc07c2ed55714afa9

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