Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccc5314e2a25e533…

MALICIOUS

PDF

55.1 KB Created: 2020-09-12 03:50:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6dbe6f087a9184f94dfc67c84a111c8b SHA-1: 6bc536b5bfa3ab3d36e9e4cd3949d36642198441 SHA-256: ccc5314e2a25e53389fe55314e7c1b105f3048fff3a19d9303c7468091f1f162
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. One of the embedded links, 'https://ttraff.club/wix?keyword=cateter+venoso+central+pdf+tecnica', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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.club/wix?keyword=cateter+venoso+central+pdf+tecnica In PDF document text
    • http://files.theuniversalartistwebsite.com/uploads/1/3/2/7/132710634/fowegarunagaj_sabef.pdfIn PDF document text
    • http://zepidex.lisamusicstudio.com/uploads/1/3/0/7/130738799/005ed2040279.pdfIn PDF document text
    • http://datezades.woodlandsbiblechurch.net/uploads/1/3/1/3/131378991/d39f1d.pdfIn PDF document text
    • http://files.leechlakeassociation.com/uploads/1/3/0/7/130739328/18f5eed4.pdfIn PDF document text
    • http://fevapapa.theluckyonez.com/uploads/1/3/1/4/131437308/9095502.pdfIn PDF document text
    • http://xegaj.soulsearchrecords.com/uploads/1/3/1/8/131871768/tajovawi-malefowokedegak-sovite-mamebuwo.pdfIn PDF document text
    • http://kalava.elishiareynolds.com/uploads/1/3/1/3/131384436/1672731.pdfIn PDF document text
    • http://files.elkcountyhistoricalsociety.org/uploads/1/3/1/4/131482819/roxemivetesi.pdfIn PDF document text
    • http://redoko.blackandblueeaston.com/uploads/1/3/0/9/130969761/4103979.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/278743_0675b4621fc043058faf75196a1742d3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3272/4124/files/numbers_in_english_1_to_1000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5654/0317/files/tasmanian_tiger_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4191/2997/files/marine_traffic_app_android_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1288/0541/files/assassin_s_creed_black_flag_xbox_one.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 8

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_off00009892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9892 5116 bytes
SHA-256: b6ffab32d4495db73793fb25b047b055d795d9dd86898113c644c385b9dabde5
font_01_sfnt_off0000aa0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA0F 10488 bytes
SHA-256: 5b9dafef3eb5ae4a24320c8baad86f2ccf268713de8637906d4766d029c44039

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