Malicious PDF — malware analysis report

Static analysis result for SHA-256 38d4a97cbec5249b…

MALICIOUS

PDF

37.2 KB Created: 2020-08-18 21:39:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a2d54e9b1cefb520f4d84912c1f627e7 SHA-1: 21c934fc0bfd8fc4d1d71d63c42f15c9d63b71d0 SHA-256: 38d4a97cbec5249ba32ad73021e3117fb6ea1cfa2483a743b512c907219b9eb0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, including a critical redirector link to ttraff.com, suggesting a link farm or phishing lure. The document body, though heavily obfuscated, contains the text 'Identity card template vector' and the malicious URL, reinforcing the lure. The ML classifier strongly flagged this PDF as malicious. The primary attack pattern involves tricking the user into clicking the malicious link, likely leading to a phishing page or further malware download.

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=identity+card+template+vector In PDF document text
    • http://files.wyatttietzfoundation.com/uploads/1/3/1/3/131383318/tupezeguxo.pdfIn PDF document text
    • http://petigo.doolanchemistry.com/uploads/1/3/1/8/131856326/4268655.pdfIn PDF document text
    • http://bizenomox.iamuinformer.org/uploads/1/3/1/1/131164250/04db00b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/judalafisuwuwotudagek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5595/5619/files/17887239586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/target_job_application.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/volurumubujijovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3792/5269/files/wuwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/pudusatasomexule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/cancer_de_pancreas_causas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9412/6247/files/molurabiraridomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9018/files/vk7jg_nphtm_c97jm_9mpgt_3v66t.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/8105031353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3321/5644/files/69084507721.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 1

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_off00004a90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A90 4928 bytes
SHA-256: a381856f247c0137a8aed83cb571aa2eb2665f4249f8c04414deef8ecb3b790c
font_01_sfnt_off00005b33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B33 8964 bytes
SHA-256: 9a417d19278751cc15d52dc245d4fecb439d39e43a1f54418322f8342d2fcf4e
font_02_sfnt_off000079e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E9 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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