Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b9ac699ed9a098…

MALICIOUS

PDF

42.5 KB Created: 2020-08-24 14:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4faea6a9ce1f36effef501de41c48d4f SHA-1: b956448f92bf7fba3dd5db285e002a742bf37608 SHA-256: c2b9ac699ed9a098a0b245c23eb8c8c2c7be2e5c40c99386ae3871f67642c739
194 Risk Score

Malware Insights

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

The PDF file contains a deceptive title and embeds a large number of links, many of which point to benign Shopify domains but are likely part of a link farm to improve SEO for malicious content. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is designed to obscure the final malicious destination. The document body itself is heavily corrupted, but the presence of the malicious redirector URL and the link farm structure strongly suggest a social engineering attempt to lead the user to harmful 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=corrupted+mods+guide In PDF document text
    • http://files.azhealthpath.com/uploads/1/3/1/8/131871938/zejon.pdfIn PDF document text
    • http://sewoz.bendigounited.com/uploads/1/3/1/3/131381204/mixijofuji_wodoruji_guvesag.pdfIn PDF document text
    • http://files.andrewcareyphotography.com/uploads/1/3/0/7/130738681/321cb0e95942.pdfIn PDF document text
    • http://sevetipu.mountaingrovelutheranparish.com/uploads/1/3/0/8/130814758/fexenefoleba.pdfIn PDF document text
    • http://files.pukasurf.com/uploads/1/3/1/4/131437983/ruruvowoma_morojuzimo.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/1/0435/3982/4799/files/conditional_probability_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6153/3082/files/one_summer_s_day_piano_sheet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/pictures_for_sad_children.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7768/7706/files/briggs_stratton_5500_watt_generator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/moponumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2564/5211/files/jojumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4393/7690/files/32081391275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5670/0319/files/10631783125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5426/0633/files/2006_toyota_sienna_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/ralph_kimball_data_warehouse_toolkit.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CE 4940 bytes
SHA-256: 66dbc72f6d081cc61839e3a0074f73b93f34697032cc75ed96e93df2b71bc9f6
font_01_sfnt_off00007a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A85 10244 bytes
SHA-256: 7d0174888c842d8e83fa88f877e33a4626de8d1ba6d2db4642363aac220d1abc