Malicious PDF — malware analysis report

Static analysis result for SHA-256 53489f99bdced38b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 08:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78c8562eb14f2c160bbc20e0b46df2e8 SHA-1: 61ca2655624cecb9370384932b079d98a897bf1a SHA-256: 53489f99bdced38b38165f349bf2e2d62dad960c2a2c55844f15537f8afc1ec7
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=dos+6.+22+bootable+usb, which is likely used to funnel victims to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'Dos 6. 22 bootable usb', suggesting a lure to trick users into clicking the malicious 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.
  • 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=dos+6.+22+bootable+usb In PDF document text
    • http://nifetejoj.pawsplayground.co.uk/uploads/1/3/1/4/131407921/305734.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/1/0440/3462/1590/files/ronepojiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0691/7799/files/51763281725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4940/9960/files/38252430667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/ashish_arora_physics_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/92672523221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/prime_minister_awas_yojana_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/99608145588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/lunasurimajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/senuresezokebabapezes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2247/4651/files/17699837857.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_off00005a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1E 4768 bytes
SHA-256: 8388a442c963a37611c4505f275048b678c906ee1dae98b9be475da4cdf7985d
font_01_sfnt_off00006a62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 10268 bytes
SHA-256: f17e65f8eede0572f153dd5cd435951aec0e0cf2eddd86c170ed857a1f0234a3
font_02_sfnt_off00008d8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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