Malicious PDF — malware analysis report

Static analysis result for SHA-256 59161c0eecfb5e1e…

MALICIOUS

PDF

52.8 KB Created: 2020-08-21 03:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1881650fce7625fb95f4d280448098e6 SHA-1: 313dca5fddcfa60d8f1ae5778bf9b8c4f933a619 SHA-256: 59161c0eecfb5e1ebf13571dacd8d1144c024e9d6600ea0f5e39560b3c57a555
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lure the user to malicious content. The presence of a 'download button' lure further supports this. The embedded URL 'https://ttraff.ru/pify?keyword=dengue+ns1+antigen+test+report' is identified as a malicious redirector, and the document body contains this URL, suggesting the primary goal is to redirect the user to potentially harmful content.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=dengue+ns1+antigen+test+report In PDF document text
    • http://korilugu.keyvisioncoaching.com/uploads/1/3/1/3/131380005/dojamurise.pdfIn PDF document text
    • http://files.fbcbrockton.org/uploads/1/3/1/4/131454586/4945550.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/1/0427/6980/9575/files/busijoxofumovakaxemam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/serurusufatovobigonatul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3355/8182/files/14783583457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/93441833888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/ceclor_250_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/87659718364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/72778418063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2680/files/bandar_aur_magarmach_ki_kahani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/fisugopevejixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/15535745848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4831/2738/files/able_lesson_plan_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5407/0951/files/51461250666.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 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_off00009042.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9042 5008 bytes
SHA-256: f65f68dcecae1256915fa65420dc7c463fa5cf855793b536c446759db4b0a0e0
font_01_sfnt_off0000a166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA166 10724 bytes
SHA-256: 155de1941cbc474998ad49ce399bce0e61566944b0618a0c689f5af2867452fb

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