Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6e2840b64f989d…

MALICIOUS

PDF

45.9 KB Created: 2020-08-14 08:51:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 957b5f5cf18866d04631f13195bf8a60 SHA-1: af4f900b188ee5f69ec4c562e19cf57dd3df5893 SHA-256: 6f6e2840b64f989df00f0fb3ad1920ebe52674366d38f16261311ca53248aef8
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 (ttraff.cc) which is flagged as malicious. The document body text, though obfuscated, includes the same lure text and URLs found in the heuristics, suggesting a phishing attempt to drive traffic to malicious infrastructure. The presence of many PDF links also indicates a link farm, likely for SEO manipulation to distribute the malicious content.

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=nutritional+information+100g+cooked+chicken+breast In PDF document text
    • http://ladarim.aolaniaustralianshepherds.com/uploads/1/3/1/4/131452954/rozeriwow_luxamogi_pusejibalubisa.pdfIn PDF document text
    • http://files.bottlealleytheatre.com/uploads/1/3/0/8/130874122/boraresases.pdfIn PDF document text
    • http://files.kidscuriositylab.com/uploads/1/3/1/3/131379650/7e6e1fb05b24b.pdfIn PDF document text
    • http://migesu.mylendernow.com/uploads/1/3/0/7/130738721/zuzewagura.pdfIn PDF document text
    • http://rizubeg.reneedavis.org/uploads/1/3/0/7/130739196/9159921.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/1/0433/0687/7080/files/xarapidarobumebavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/60400353309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0997/files/vasesifiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4396/3548/files/zidamefutakebodigepoxiwek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/jaridenefarawuzim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4855/9004/files/fichas_para_aprender_espaol_para_nios_extranjeros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9865/6158/files/canonical_correspondence_analysis_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/vehicle_year_model_interchange_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mupesoxozuwimufuvijolus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/jupedijugodutesotot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5031/9517/files/tutijez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/4464891425.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_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 5684 bytes
SHA-256: 3c5f8decf048566b6059e16a830971cec1f8dae363b48f585dfcb84a7577c043
font_01_sfnt_off0000796c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 10196 bytes
SHA-256: d8de2809e3b0338ab256b20993c3bd9bf35ef71fbdecf169b7ea38320bbfde88
font_02_sfnt_off00009c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C06 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f