Malicious PDF — malware analysis report

Static analysis result for SHA-256 e34b0ca689210b82…

MALICIOUS

PDF

48.7 KB Created: 2020-08-21 20:50:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 2291825a2d041e861a2b09d057c0a0cb SHA-1: a994a74c62cf5857ccd85f1d10981b5eb3b7ce83 SHA-256: e34b0ca689210b8203d3c63334e64b4d58eef1ebd65327400b82b1ca9c42495d
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. The document body also contains this URL, disguised as a 'free annual credit report in south africa' lure. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to distribute content or mask malicious activity. The ML classifier strongly supports the malicious verdict.

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=free+annual+credit+report+in+south+africa In PDF document text
    • http://files.sbsos.org/uploads/1/3/1/3/131380008/6736135.pdfIn PDF document text
    • http://files.communiteabooks.com/uploads/1/3/1/3/131381518/jiwiwolojijuxipipe.pdfIn PDF document text
    • http://files.corijacobs.com/uploads/1/3/1/3/131380438/zinopexum.pdfIn PDF document text
    • http://files.risingstarzmusic.com/uploads/1/3/0/8/130874489/punuvosokozobexavolo.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/1/0431/0705/7825/files/axa_ppp_directory_of_hospitals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/indent_text_in_google_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5006/8126/files/bodybuilding_program_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/88690995706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0167/5939/files/mureg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7809/6798/files/carburateur_elementaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/veputax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/janinabubesexiburebipore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0775/files/57281596940.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD6 5196 bytes
SHA-256: 1a23e9138ecfe427711a16127f0514398ad946609e35dc96fea4af85431e02fe
font_01_sfnt_off00009173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9173 10564 bytes
SHA-256: 2af28732b0f141a68abde454d20d0d8dc75d906b579363dc7d598a194cd4620f

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