Malicious PDF — malware analysis report

Static analysis result for SHA-256 c08ab990da3b1663…

MALICIOUS

PDF

41.3 KB Created: 2020-09-20 03:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f609232cf1507469204f7a8d9f9767e SHA-1: 25522634a936cbf28c12e3843d9839ab38cb9fae SHA-256: c08ab990da3b1663f84f37d120c0f767eeeed49c385e953b91fb42f908aa6cd3
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=eso+woodworking+guide', which is also flagged as a malicious redirector. This suggests the primary purpose is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting. The ML classifier strongly supports the malicious nature of this PDF.

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=eso+woodworking+guide In PDF document text
    • http://wetajovod.rawseries.org/uploads/1/3/0/8/130873851/2908543.pdfIn PDF document text
    • http://vuwore.billyburkefans.com/uploads/1/3/0/7/130739069/nonomurafej.pdfIn PDF document text
    • http://files.myshoedestination.com/uploads/1/3/0/7/130740017/8912511.pdfIn PDF document text
    • http://files.tranbcreative.com/uploads/1/3/2/7/132740498/8280803c27.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/1/0432/0067/5995/files/research_methodology_cr_kothari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5363/8044/files/14125764324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/sujomojawefeganaxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6321/2192/files/11504913894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/8300/1756/files/epic_war_tower_defense_2_apk.pdfIn PDF document text
    • https://edea66ed-3f3b-42f8-abf6-51b1355089bf.filesusr.com/ugd/bae363_4806650e77594deab30134508c4d2388.pdf?index=trueIn PDF document text
    • https://3bceed65-4c7c-49b2-80f1-6d48a0b92400.filesusr.com/ugd/fdd6c2_68d2901378904b2d9c2f6f6c26a292ed.pdf?index=trueIn PDF document text
    • https://c0999f81-4cda-4a8c-9df7-4dc62b7b09f0.filesusr.com/ugd/a474dd_35d5f13ede214935a2de2f5346986216.pdf?index=trueIn PDF document text
    • https://63adb2c0-c01d-4fb8-a4b8-954b45d0d678.filesusr.com/ugd/895bef_b04b0e45b9df43138b6eb8a8adea63a1.pdf?index=trueIn PDF document text
    • https://7772ce1c-b538-417f-aaf5-5c1e783403f9.filesusr.com/ugd/1a1092_c8ff789c05314c06841a438dccf44d6a.pdf?index=trueIn 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_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 4864 bytes
SHA-256: 32bc2399b6729ec80b001fbd8de3e505eb445bb8730c9ace62515186eac4094b
font_01_sfnt_off0000756f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x756F 10320 bytes
SHA-256: dd5e7c2ac2264f71dd1c98c83baa75449845e9e7d74e2354b431f14704da1c63

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