Malicious PDF — malware analysis report

Static analysis result for SHA-256 378ab66fafe0d963…

MALICIOUS

PDF

62.9 KB Created: 2020-08-16 00:51:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3df9eef7400cc9bb02e277c7273be221 SHA-1: 8127e11a2809e164f8f2b4f0de95f4e7cc0eca7f SHA-256: 378ab66fafe0d963144c4bbc9353beaa6e57048ba96034e15962ea774f9e9b38
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bimanual+palpation+of+bladder'. Additionally, it exhibits a PDF link farm behavior with numerous external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect users to malicious infrastructure. No scripts were extracted from this sample.

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.cc/pify?keyword=bimanual+palpation+of+bladder In PDF document text
    • http://remilax.serenitybirth.com/uploads/1/3/1/4/131407283/tagitatoberuw.pdfIn PDF document text
    • http://files.medwaybaptist.org/uploads/1/3/1/1/131164118/6463547.pdfIn PDF document text
    • http://files.audiocognoscenti.com/uploads/1/3/2/7/132740547/4534660.pdfIn PDF document text
    • http://files.slfexhibition.com/uploads/1/3/2/6/132696512/4f492be8c.pdfIn PDF document text
    • http://dirijutu.littlelemonmarketing.com/uploads/1/3/0/8/130815097/gusetuvisix.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/1/0437/0874/3835/files/ccna_cyber_ops_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5731/4977/files/79148126508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7485095273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0447/2992/files/6482525400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4641/1160/files/wifi_showing_authentication_problem_in_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8316/9943/files/numerologia_cabalistica_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6822/files/29370777931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8894/0961/files/lugup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2143/4005/files/boost_your_vocabulary_2_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0945/6803/files/70647253811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/3302338162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5168/7837/files/depibisesujam.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_off0000b954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB954 5200 bytes
SHA-256: 7f42cb9bbe8a80080f4bb7d28de42325d2fb5038114f11db3b06e2961f557f2d
font_01_sfnt_off0000cad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD9 10420 bytes
SHA-256: d988a9acf6090e615497f9d7000b7cba69eba00543d028d04a9150e35657dc36

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