Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdbb49b60fd75c94…

MALICIOUS

PDF

40.4 KB Created: 2020-08-08 05:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a534a96b6f2d681734f8c68ce5d7366b SHA-1: 76aa6e00262c5fa02d2939b19a63db0acb2f410a SHA-256: fdbb49b60fd75c94547344bb9c050c0d6194b9f31054102711675c3c5055b5e6
162 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, suggesting an SEO link farm. One prominent link, 'https://ttraff.cc/wb?keyword=traitement%20d'insuffisance%20cardiaque%20pdf', is flagged as a malicious redirector. The document body, though partially corrupted, contains text related to medical treatment and the PDF's creation tool, reinforcing the lure. The primary attack pattern involves redirecting users to malicious infrastructure via a deceptive link.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.cc/wb?keyword=traitement%20d In PDF document text
    • http://files.armahart.com/uploads/1/3/1/1/131164100/1282497.pdfIn PDF document text
    • http://files.nxtgenerationenergy.com/uploads/1/3/2/7/132740415/sodegebu.pdfIn PDF document text
    • http://files.alexlawkc.com/uploads/1/3/0/7/130740141/4795345.pdfIn PDF document text
    • https://ttraff.cc/wb?keyword=traitement%20d'insuffisance%20cardiaque%20pdfIn 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/1/0428/9835/8432/files/rewosegukedisupagur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/taxaxojigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0112/4760/files/69188225348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/dobexukif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/riwevafosufebuzivupegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1559/files/pideru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8648/7455/files/puzokotifuritananewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/febubodupemadunuwogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/77826180676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6386/files/apostles_doctrine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4011/6629/files/assignment_writing_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8420/8545/files/waltzing_matilda_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/92116636396.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2A 5380 bytes
SHA-256: b78c35e220bc1d42b750c246c96fb8828f862a5244470e812a43f6814c5d1f69
font_01_sfnt_off00007064.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7064 10796 bytes
SHA-256: 7614ba97374e628dcd7c2a813fab92dff30ede15988c37af64a2eb1452d32c9e

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