Malicious PDF — malware analysis report

Static analysis result for SHA-256 676b01f4a9b33562…

MALICIOUS

PDF

41.0 KB Created: 2020-08-03 10:30:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b5c4c9293b1a0d780e9ff1d990f3756 SHA-1: 90098dc23e5cdef5756bb7788af93c651798e9bd SHA-256: 676b01f4a9b335620f3d8471a0ad071140d6dbc0e35a5a8cf1ed269e7208213a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service at `ttraff.ru` which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to drive traffic to potentially harmful content. The presence of many Shopify-hosted PDF links indicates a link farm or SEO spam tactic.

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.ru/pify?keyword=marine+corps+drill+and+ceremonies+manual In PDF document text
    • http://files.bevilacquaguitars.com/uploads/1/3/0/8/130813054/6ce3593cb6ef653.pdfIn PDF document text
    • http://files.bakedwithhearts.com/uploads/1/3/0/9/130969461/8cd32.pdfIn PDF document text
    • http://files.authormelaniejames.com/uploads/1/3/1/3/131378990/8699926.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/1/0432/1139/1135/files/xafezozina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/21891785260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/5274461667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3046/3142/files/applied_nonlinear_control_slotine_solution_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/zapevefesozixede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0749/0717/files/jegowekewaveludizobupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2118/8763/files/notebook_hindi_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6086/2874/files/40770646806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2026/2308/files/28807524461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7318/3637/files/xixavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4949/9289/files/wifaxakobikeduboboxonije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lagikemirulufuwetore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rodupenewizaf.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56BC 5028 bytes
SHA-256: 11d7c17fda11b36c02fbb46989c8d3769e3ea010abefdcb93fba190dc5d3260c
font_01_sfnt_off000067a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A7 9672 bytes
SHA-256: 652aca84f4713344ced414432f39caa96fb362a06d3a8ea910efe5b8784b3bb6
font_02_sfnt_off000088d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D2 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71