Malicious PDF — malware analysis report

Static analysis result for SHA-256 3aef5cf8d378c5cd…

MALICIOUS

PDF

43.4 KB Created: 2020-08-01 23:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3eec3ff92fe3cc552fa2563e65f5f23 SHA-1: 8a42282f9698599d17bf2a29529608eddedf6a9d SHA-256: 3aef5cf8d378c5cd2f51864e34c7acdb97cecf5651ea24014e005eca6c26a1b3
234 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, many pointing to Shopify-hosted PDFs, designed to appear as legitimate content. One prominent link, 'https://ttraff.com/pify?keyword=bolding+in+discord', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and link farm indicate a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=bolding+in+discord In PDF document text
    • http://files.nomnomgelato.com.au/uploads/1/3/1/3/131379343/gamiwosanijaz-rorenen-davimeboj-jajanadivojise.pdfIn PDF document text
    • http://files.capetowndaytours.net/uploads/1/3/0/8/130874629/bugob-bowon-jozopo-vudux.pdfIn PDF document text
    • http://files.freedomheroesusahealingsanctuary.com/uploads/1/3/1/6/131607005/retutiretezese_gezani_weronobedetuxo_xarozo.pdfIn PDF document text
    • http://files.mfgconsultinginc.com/uploads/1/3/0/7/130738859/132022.pdfIn PDF document text
    • http://files.sneakernebula.com/uploads/1/3/2/3/132303351/navixopesudat.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/1/0430/7045/5965/files/dusatowidujifemitipagufiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/gonekimalunat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/litupom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6369/6805/files/qualcomm_atheros_ar956x_wireless_network_adapter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2606/9157/files/44707611726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9332/7008/files/wejukepuwomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/wudimojewejusunugatevola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8488/2844/files/77022960654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49839171509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8841/9741/files/39153267634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3450/7426/files/vanuxijubotusudosokisaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/55252267877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2689/files/57003456960.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1688/files/beruramala.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C63 4948 bytes
SHA-256: 51b3c8f74871017ed27c54cad7246362334c7f222577bd25479cd03b8fc2d86c
font_01_sfnt_off00007d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4D 10208 bytes
SHA-256: e0d2402c39c95eabf3ea8d3c285fbef46a764105c04c72bd5083748c39e06335