Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8bed4d696c7ccce…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 07:02:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8387e8512a0e165f7693b733a2529349 SHA-1: 8ecb7f2848f09fcdad144cdd0ef6f8358af32d01 SHA-256: f8bed4d696c7ccceeca311f41d1ed2aa78759b050fe03cbf3547fa33e2f7d624
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=cisco+catalyst+3750+datasheet', suggesting a lure to disguise malicious activity as a technical document. The redirector likely leads to further malicious content or exploits.

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=cisco+catalyst+3750+datasheet In PDF document text
    • http://mitosa.accelerateyourteam.com/uploads/1/3/1/4/131454807/28342e82.pdfIn PDF document text
    • http://tavubevi.holytrinitylutheranchurchrvc.com/uploads/1/3/2/7/132740764/4924130.pdfIn PDF document text
    • http://files.westhawthornuniting.org/uploads/1/3/0/8/130813042/bumubikikivudan.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1013/8017/files/76370438810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/41733010661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/6489159804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6068/2139/files/24630109222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3107/2666/files/metabolic_acidosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56802730071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4786/1923/files/cinquenta_tons_de_liberdade_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/18467987754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5256/files/15570039026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0453/2648/files/86967179137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1653/4690/files/generic_array_java.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F41 5448 bytes
SHA-256: bfe4a04444fd2196ef4032d96f428c965941eb61d3f27e379da584cf31667933
font_01_sfnt_off000061ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BA 6068 bytes
SHA-256: d2d10b6b0c668cf26faa9347c7054f8580c7eefa5cb7aecda2a4fba74bd025f0
font_02_sfnt_off0000716b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716B 14940 bytes
SHA-256: bdeec3df0de8ac20da1d2f752fd0fda2e8db9564b9889968b0e82356d7f68cca

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