Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a0fb0fe0f74bea9…

MALICIOUS

PDF

46.7 KB Created: 2020-08-11 22:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7502680523f7de8de124e5f1181b1ff6 SHA-1: eb53fb74979fd404adc1a6ec58baee6c87915b9b SHA-256: 3a0fb0fe0f74bea9346b052c5afe6dc7a62b60f2844eb0fe9032184b9abe3e27
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a common tactic for SEO poisoning and link farms. One of these links, 'https://ttraff.ru/pify?keyword=maine+counties+map+pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, appears to contain the same URL, suggesting the primary intent is to drive traffic to malicious infrastructure. No scripts were extracted, limiting further analysis of the payload.

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=maine+counties+map+pdf In PDF document text
    • http://viworeza.cyfairorchestra.com/uploads/1/3/1/4/131438464/a9be3386b013ef.pdfIn PDF document text
    • http://files.carlystong.com/uploads/1/3/2/6/132695586/gogulijujet_vapapezuropizi_duburobugam.pdfIn PDF document text
    • http://files.theinnerstrengthlife.com/uploads/1/3/2/7/132741334/wezomaw.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/1/0435/2458/7672/files/18936314769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/learn_english_in_gujarati_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/rilezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/99806158395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9512/files/99196858045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5877/files/61540920859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/lokij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1410/2951/files/satisfaction_in_canteen_services.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/telecharger_oxford_picture_dictionary_english_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/tobaliwekarokobixuzike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/debijirel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3624/4118/files/mebaroxolixavinirosudaruk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9609/5397/files/97911898477.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_off00006cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBE 5060 bytes
SHA-256: c86243b7c7c9243d11c4464085e99bcbdc3df3ab362c28ed44ce770c8d64b6ae
font_01_sfnt_off00007ddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDF 9888 bytes
SHA-256: 94700268ce8b8a9549733b80fead6758603b41cdfb8adbeab85511896bfdd95f
font_02_sfnt_off00009fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FB9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e