Malicious PDF — malware analysis report

Static analysis result for SHA-256 a44929e13f725aa7…

MALICIOUS

PDF

46.8 KB Created: 2020-07-31 09:20:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a0efa01fe1de54f8c5398e9c0ac352a SHA-1: 34fca8128107bb16c4aba24d0350d9d6b741aae2 SHA-256: a44929e13f725aa72659d73b614b533b8215d34cbbd1cf691f00ac042abb3b97
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the primary links redirects through 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'mergers and acquisitions for dummies pdf free download', suggesting a lure to entice users to click the malicious links.

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=mergers+and+acquisitions+for+dummies+pdf+free+download In PDF document text
    • http://files.farmgirlwriter.com/uploads/1/3/2/3/132303374/fe13b2d82d.pdfIn PDF document text
    • http://files.vosssolutions.co/uploads/1/3/0/8/130814078/9697907.pdfIn PDF document text
    • http://files.arcdesignstudios.com/uploads/1/3/2/7/132740292/2946464.pdfIn PDF document text
    • http://files.shelbymrocca.com/uploads/1/3/0/7/130775776/furamebikokixejowun.pdfIn PDF document text
    • http://files.mikelipari.com/uploads/1/3/1/0/131070846/vijowaraluditisir.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/1/0434/0776/9750/files/6339256895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zeranosorijajigafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/lolatulekevutes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/seralozuxetudaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/88071091663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0547/4978/files/24659944770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8402/8833/files/dawefened.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0265/8979/files/88503294770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3723/7148/files/gugalikajipoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7744/3483/files/dikulet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5274/files/loponade.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 4

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_off000077fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77FE 5580 bytes
SHA-256: b3f90d918c0da57bb1d3af857412170046a540c68ebc1efac5a39ad92aac1aa1
font_01_sfnt_off00008af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF1 10240 bytes
SHA-256: 997d868c59e44de24c565a2722f7846187c23931594dab153bd369f1250d88aa

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