Malicious PDF — malware analysis report

Static analysis result for SHA-256 0144382fbe70dd7d…

MALICIOUS

PDF

46.7 KB Created: 2020-08-08 11:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: daf28d8ed983ee7b81e857060cb5a53e SHA-1: a070ca385c222226650c50fb79579a3e6fd298da SHA-256: 0144382fbe70dd7d30929186f57f10a7320b7b8c2f106693d4a97524137e7206
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com) and appear to be part of an SEO link farm. The document body, though heavily obfuscated, contains the same redirector URL and other PDF links. This suggests the primary purpose is to manipulate search engine rankings or to distribute further malicious content through these 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.com/pify?keyword=ghersi+cemento+armato+pdf+download In PDF document text
    • http://files.baskog.com/uploads/1/3/0/8/130874457/20d2f285a5b.pdfIn PDF document text
    • http://dafedol.royalehairstudio.com/uploads/1/3/1/8/131856917/dixopomox.pdfIn PDF document text
    • http://files.stephaniemiracledances.com/uploads/1/3/2/6/132681757/99b179188f7168.pdfIn PDF document text
    • http://files.alare.net/uploads/1/3/1/8/131871740/fumopeduxoduxanikav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4493/7623/files/que_es_auriculoterapia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1479/7981/files/gilidakoxotusugupob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0392/6938/files/97114592544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1641/files/xubumora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6221/3273/files/13654545234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8244/files/acls_card.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/wakujubiveg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8716/7641/files/paruwedemaxaxot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/39897517089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/52566958319.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6882 5304 bytes
SHA-256: ccc4547a98dd9f070d46abad8478a214585278f9665abdc5d4e757ac199b1911
font_01_sfnt_off00007a77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A77 11404 bytes
SHA-256: c67c4ccf9ce4c636991a35a749316b19334987f3d2b024fb20530e54a911b731
font_02_sfnt_off00009e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E2C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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