Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b56862c976feb78…

MALICIOUS

PDF

41.5 KB Created: 2020-08-03 09:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d47ef7fe42bae197987a7bf35c51e6c9 SHA-1: 465beca73e89d9ffecf51b765e928f653e508d52 SHA-256: 4b56862c976feb78c88ff55948538a99f65b6184bd1910461ce43c6b6c8c9f5a
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one critical heuristic identifying it as a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The primary malicious URL identified is https://ttraff.cc/pify?keyword=my+favorite+mistake, which likely serves as a redirector to further malicious content. The document body itself is heavily obfuscated and contains metadata related to its creation, but the embedded links are the primary indicators of malicious intent.

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=my+favorite+mistake In PDF document text
    • http://files.piconazarene.com/uploads/1/3/0/9/130969465/2309282.pdfIn PDF document text
    • http://fenowo.owsleylockandkey.net/uploads/1/3/1/4/131438474/xiduril_mosumapetiz_zufawubedalej_xafabofaxufos.pdfIn PDF document text
    • http://files.jenniferhelenadams.com/uploads/1/3/1/8/131872079/5646744.pdfIn PDF document text
    • http://files.newskinbodyart.com/uploads/1/3/1/4/131437619/8993270.pdfIn PDF document text
    • http://files.centraltauntonscoutgroup.com/uploads/1/3/2/7/132710601/d2a4744.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/1/0432/7751/6955/files/datiwibopazoxatakap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7759/1449/files/32238685369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/datumaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1120/files/bulova_marine_star_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/mobofibesubadid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1715/files/dupezukanalugabuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/96249422408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6486/6469/files/397441795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5125/files/vubunakakemelula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/julumawame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/milujowazesododuxotazu.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 7

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_off0000657f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657F 5112 bytes
SHA-256: 1e171be7eca550546923a86de1ae982df8a1ab2181ac22df389a5345e3321789
font_01_sfnt_off000076ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EF 9884 bytes
SHA-256: e6604f222292a0361dbda3b5a2f2f843fb316358377c9df50cba2fcaa304e1dd

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