Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d52da533adc86ac…

MALICIOUS

PDF

49.6 KB Created: 2020-07-28 20:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a27097067568f58138d98bf6e091b602 SHA-1: 604edc1832772317951185cf83b6f54fcf641a21 SHA-256: 3d52da533adc86ac86c43b21871144d958396aa6f8424722df93e7082f94329f
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one being a redirector. The document body, though heavily obfuscated, contains text related to 'Crystal reports 2016' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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=crystal+reports+2016+case+statement+multiple+values In PDF document text
    • http://files.canbuildimmigration.com/uploads/1/3/1/1/131163736/jasit_zafajig_konaburawuw_pulale.pdfIn PDF document text
    • http://files.plainfieldgirlscouts.org/uploads/1/3/1/4/131407138/0ef27f38437.pdfIn PDF document text
    • http://files.jennylohswhitework.com/uploads/1/3/0/8/130874647/d0e955316652066.pdfIn PDF document text
    • http://files.prestonfreshersweek.com/uploads/1/3/0/8/130813837/328360.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/1/0437/5294/7873/files/83905432676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0729/5140/files/41545141810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/doporetazogoxojuruk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/93620748989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4387/1127/files/befutejaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4118/5189/files/78279863200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7039/7339/files/gegavurafagam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6548/1118/files/63843592105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2681/6932/files/36529675947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0078/1208/files/17890839040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6948/8798/files/94349079065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6999/7207/files/62711873821.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_off00007f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F92 5628 bytes
SHA-256: 608ea0d94da4e95d3e3f13ef8622c5a5a5e28e09e40db740a325d21325795ecc
font_01_sfnt_off000092ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92AD 10768 bytes
SHA-256: 7ac7b99cd52540f19e2abdbc54c22e5ba32eb5d562062ac8de81fb3a6002bc79

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