Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ffe114b7623057…

MALICIOUS

PDF

76.8 KB Created: 2020-07-28 22:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 554bb56ceec9170a05a46ea7cc55da66 SHA-1: 243ccba0d53a6322f27bedcc46df88f619bd6612 SHA-256: 94ffe114b762305728a2cd84fb7cf479b9468149d6817a1cef93a35e3d7f1b6a
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, and the presence of the redirector link indicates an attempt to lure the user to a malicious site, likely for further exploitation or phishing.

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=diagnosis+bronkitis+pdf In PDF document text
    • http://files.stcharlespilgrimages.com/uploads/1/3/1/4/131453436/bewinosivuzeni.pdfIn PDF document text
    • http://files.kentmindfulnesscentre.org/uploads/1/3/1/6/131607363/zewejurutevagemewe.pdfIn PDF document text
    • http://files.posyplease.com/uploads/1/3/1/8/131856706/5028d07.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/1/0433/0687/7080/files/moxudenolaruxorurafugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/60577192939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/xadiwatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/28961721546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6926/7354/files/81914917401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4206/9918/files/73954534083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1121/1425/files/11112571739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1837/0728/files/vomawubokixodunegozojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/xejifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/56294589681.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD186 5052 bytes
SHA-256: 92df8edcd8f5d1a2f620272e897450e8976a060b6c5d69c8de3097e34f494641
font_01_sfnt_off0000e2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B7 14432 bytes
SHA-256: ff41b440f6e62616ac4d67e16dc341bdb0b7969040c8cc03456049f3e20c3667
font_02_sfnt_off00010fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FBE 16488 bytes
SHA-256: c683828d5bb05f4876305e7335b2e7deeabf56270d33e6d8add08f3c1a0def57