Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d956ca1f2035ba6…

MALICIOUS

PDF

42.3 KB Created: 2020-08-25 14:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48052ce4df2201bbcf19af00b5e23084 SHA-1: e722a0545a4813ddf930918fb4b1633a71057602 SHA-256: 8d956ca1f2035ba605b6c116061c56a0114ef140d291fb5f0bf5ef7d0fdd1ab5
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.com/pify?keyword=white+sheet+vinyl+flooring+uk'. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The document body, though heavily corrupted, contains the same suspicious URL. No scripts were extracted from this sample.

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=white+sheet+vinyl+flooring+uk In PDF document text
    • http://tubosixe.darbodus.com.au/uploads/1/3/0/8/130874063/1814bdbd63660.pdfIn PDF document text
    • http://files.katiebland.com/uploads/1/3/0/8/130814382/jemud-gajobijoxiga-wuxedi-sosuwadugaruro.pdfIn PDF document text
    • http://jakupus.wonderfulthings.org.uk/uploads/1/3/1/6/131606289/powixirezigotazez.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/1/0431/6617/1293/files/65482524942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0941/6095/files/atlanta_georgia_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6421/4182/files/github_clone_ssh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/68634926618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7229/8918/files/94836258563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2585/6672/files/pro_forma_income_statement_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/tafap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6251/6122/files/vefewunimaxibatufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/lafevewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3110/1603/files/13018558316.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_off00005e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 5056 bytes
SHA-256: 549acdf164e096e9e540af47ca0efd0a47aa8a7eeaa5359194b22a61f0453388
font_01_sfnt_off00006f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F82 14336 bytes
SHA-256: 6c3b0c15298e5b0b0cdb27dad51d92ea2a20459f1df70ba10cfb99993a53b8df

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