Malicious PDF — malware analysis report

Static analysis result for SHA-256 380eb51c13e6edb5…

MALICIOUS

PDF

47.9 KB Created: 2020-08-17 03:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6d719cb891687e03d7805c86c0cee894 SHA-1: df5d101f6839268af8104981465ed755c7a47894 SHA-256: 380eb51c13e6edb5bca610d084b942e5af4a4193a50bfdc2bb89412c4b6d89ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body and heuristics suggest a lure to download a PDF, which redirects to the malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attempt.

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.ru/pify?keyword=the+practical+kabbalah+pdf In PDF document text
    • http://files.sorrowfulmother.net/uploads/1/3/2/6/132680822/ab2206.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/1/0433/3273/1038/files/51223452111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/43910618129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/bafujotirapizemuwexajus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2583/3882/files/bando_automotive_belt_catalog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8717/5588/files/nuwifekazeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8466/1407/files/ludode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/zepowewudunefig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8785/4749/files/89328230032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7077/4677/files/heart_of_worship_chords_g.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
🗂 Part of campaign: sorrowfulmother.net 3 samples

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_off00007f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F34 5220 bytes
SHA-256: 827d5ca1d061640ecddd6a924c74376b6021ab89ff01de6be377cd6ba03f7d1c
font_01_sfnt_off000090e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E3 10084 bytes
SHA-256: 178b0bb12893abf039ace51b79437dfc12fc509e32f6f03c1e3afcdcdbeec1c5

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