Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a55ff4dbb41e8c0…

MALICIOUS

PDF

57.4 KB Created: 2020-09-12 19:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad633e7929410de8f9318564a288cd48 SHA-1: 1bbbb581a87431e5d861a4a3b30644358e88b2ad SHA-256: 1a55ff4dbb41e8c0365cd9fdf045bb1cd71057b87469fc36ffd53507d767b56c
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, a common tactic for redirecting users to malicious sites. The primary link, 'https://ttraff.me/wix?keyword=tes+online+craft+trifling+glyph+of+health', is identified as a malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, with many URLs pointing to external PDF files, such as 'http://wuwuzuw.landslidevape.com/uploads/1/3/1/4/131438405/3761240.pdf', suggesting an attempt to manipulate search engine results or distribute further malicious content.

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.me/wix?keyword=tes+online+craft+trifling+glyph+of+health In PDF document text
    • http://wuwuzuw.landslidevape.com/uploads/1/3/1/4/131438405/3761240.pdfIn PDF document text
    • http://files.10000wordsphotography.com/uploads/1/3/1/8/131856991/gumoxu-xifeti.pdfIn PDF document text
    • http://mujum.chsapbiology.com/uploads/1/3/1/3/131383841/riwaledotovov.pdfIn PDF document text
    • http://selerijax.rtchattanooga.org/uploads/1/3/2/6/132682787/raxepinagunolidovez.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/1/0432/7899/1513/files/lowering_cholesterol_diet_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/24478258193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4228/files/11395825066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0813/0197/files/87104715077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1906/7815/files/dirurubeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6666/8694/files/76548448805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9014/1344/files/dulilopitalapow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0723/7531/files/pesaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/factoring_quadratics_worksheet_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7031/4903/files/69104786168.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9904 2828 bytes
SHA-256: 4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
font_01_sfnt_off0000a2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2FF 5328 bytes
SHA-256: 2bb52e62b83eeb2953d0809340aa1005a57c353b3b24259e71dec390eb8a19c5
font_02_sfnt_off0000b525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB525 10256 bytes
SHA-256: 0e3d7bf7bc15afdf55aab4707611bceace3c8dbab0dfebfce2f6c7b7ed4e6be3

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