Malicious PDF — malware analysis report

Static analysis result for SHA-256 52eca565a97d3a94…

MALICIOUS

PDF

43.3 KB Created: 2020-08-14 08:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 882c0fa7bbb2ab3b6769aff6b913ccb4 SHA-1: bb80d4249b3368552ce1da1d2c4f12d8edb638d0 SHA-256: 52eca565a97d3a94b988bc1d53c76dba33e02cc23f1264d007e053df48f77fa7
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector at https://ttraff.ru/wb?keyword=list%20of%20minerals%20in%20food%20and%20their%20uses%20pdf. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user 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.ru/wb?keyword=list%20of%20minerals%20in%20food%20and%20their%20uses%20pdf In PDF document text
    • http://files.anasofiarodrigues.com/uploads/1/3/1/4/131453252/dd8aeb8201e.pdfIn PDF document text
    • http://files.gboromassage.com/uploads/1/3/1/4/131410370/3356015.pdfIn PDF document text
    • http://files.acdavisbass.com/uploads/1/3/0/8/130874029/c68711e.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/1/0437/7378/8321/files/suneladepipamevitidag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/72542990261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5463/5937/files/malovowiruxegufuziturev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2956/8408/files/fufesopabotalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/18042930441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/22570888241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/misadijadosebedukufemalul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/pastebin._com_raw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/71796053969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/dutuvepojevumoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/fafofupewagovobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7271/files/66743497033.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 5104 bytes
SHA-256: e56c35da16b7d0969553e91c042120f87d98cb6065f01bde3e37ff362bc9eab3
font_01_sfnt_off00007195.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7195 9504 bytes
SHA-256: 221d3ad2d43f432d82d4e2766c64270b8ab27fd4b314f464924c1cb9c387ce95
font_02_sfnt_off00009207.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9207 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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