Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6dfe6bd21954c1…

MALICIOUS

PDF

81.4 KB Created: 2020-08-09 15:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e314a8debf95efbcaf56c8eb9dbebd6b SHA-1: 9e8dcae1cbc1f540676205dd583a4f97ca0cf125 SHA-256: 6c6dfe6bd21954c15072afccbc635c5514ce09934ba66b8fd69eaddc311467f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link farm and redirects to known malicious infrastructure, specifically 'ttraff.com'. The document body, though heavily obfuscated, contains the same lure text as the redirector URL, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.com/pify?keyword=how+to+work+cctv+camera+system+pdf In PDF document text
    • http://pifig.jenniecaseysinnott.com/uploads/1/3/1/6/131606289/zijoletem.pdfIn PDF document text
    • http://files.walkonfootball.com/uploads/1/3/2/6/132695339/7706785.pdfIn PDF document text
    • http://files.hirzelinteriors.com/uploads/1/3/2/6/132681783/junugikozetave_wudulatabemeba_teparolos_gevijobugudut.pdfIn PDF document text
    • http://files.hirailmodulartrainclub.com/uploads/1/3/0/7/130775969/diwad.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/1/0430/0659/1127/files/sunazexapifexuroteja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/basewituzonusajasamewuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/terevarobexavavini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0295/1842/files/zarirusaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/sulofex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0622/0697/files/balance_sheet_solved_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/dakoxiwepade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9875/8557/files/grammar_activities_for_adults.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 4

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_off0000ff05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF05 5548 bytes
SHA-256: cca5d5ae3443ffb641384031c41f3a24c8693dd7892f71450344a7395272c366
font_01_sfnt_off000111ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111EA 11488 bytes
SHA-256: 35e8d45cb1f09b9f88778205ca825e7d2306ced43cd9a7631a745382d024d22c

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