Malicious PDF — malware analysis report

Static analysis result for SHA-256 210b2d3881db2ce7…

MALICIOUS

PDF

40.9 KB Created: 2020-08-12 20:12:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 857cee8c8b97d6f8de326e46dce84252 SHA-1: 31b1eda7b5bce780d1c70c1038726670fefb7968 SHA-256: 210b2d3881db2ce700f4911118cc944e03196012fd9809f23b3705e7261629fd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This suggests the primary purpose is to redirect the user to a malicious site, likely for further exploitation or phishing. 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/wb?keyword=chemistry%20formulas%20list%20pdf In PDF document text
    • http://files.robbatesphotography.com/uploads/1/3/0/9/130969862/b8064c02855e.pdfIn PDF document text
    • http://gewetivo.mistystevensbluegrass.net/uploads/1/3/1/3/131380600/xobakaboni.pdfIn PDF document text
    • http://files.mpwsr.com/uploads/1/3/1/4/131438676/mufidifivivil.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/1/0435/5679/8615/files/37037079060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/ce_technical_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/rosudotavexuvulaxumuroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/93681431196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/likoborikesoxixofikerab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/zolorofoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/74078617381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/54740926020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/oxford_phonics_world_1_teacher_s_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/muwinivasodepimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3194/4602/files/kezixidesujogiga.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_off00006271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6271 5288 bytes
SHA-256: be087bc423656c9820ee9acf8f6b01f6ad75a70d5ac77111d0a817fef28a8280
font_01_sfnt_off00007446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 10060 bytes
SHA-256: 0503f541a69b7d24600c8944cef1e672b9f9b0b924cac8ea4f36c419a7a4a7f4

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