Malicious PDF — malware analysis report

Static analysis result for SHA-256 541fd673b48a9ede…

MALICIOUS

PDF

44.3 KB Created: 2020-08-14 08:41:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 042665f1a57371f8e14eb42f8a75bdad SHA-1: 38674c62645b0cb2cfc213bda66545978b8f614c SHA-256: 541fd673b48a9edeccb844456d465312b45386844d031a1cb79b529b2dfd256f
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one to a known malicious redirector, and is flagged as an advance-fee scam lure. The document body, though heavily obfuscated, contains text related to 'stock market trading platforms' and a URL that appears to be part of the scam. The primary intent is to trick the user into clicking the malicious link, likely leading to a phishing or malware download site.

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=stock+market+trading+platforms In PDF document text
    • http://files.sunshine-learning.com/uploads/1/3/1/3/131398075/lotenokilinaw-duruz-wokamuvigidi-sowijamapal.pdfIn PDF document text
    • http://files.laurencedeadionneart.com/uploads/1/3/1/6/131636589/1dde2d.pdfIn PDF document text
    • http://files.frenchquartersalon.com/uploads/1/3/1/4/131453595/teradatesi-vagilutuzajikid-fatedufe-nalafegivepipuv.pdfIn PDF document text
    • http://vozomu.thebellevie.com/uploads/1/3/0/7/130739197/8574598.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/1/0432/8649/5396/files/vajubujibodifisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8503/6706/files/kalender_2020_sterreich.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4971/1781/files/berezina_tesson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/34399998108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2878/3002/files/defasuwuzovizefigel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2480/0154/files/retavirupago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/61910202582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kefemomorevogik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1326/6846/files/rumasunibunebis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/rasifixaduvipimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8816/files/benusarevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2982/1602/files/ganesh_atharvashirsha_lyrics_in_marathi.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 7

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_off00006d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D86 5640 bytes
SHA-256: 72fb6c333552ead5fe3a8c68be557e58b56226a22de4fe0622397018427617d4
font_01_sfnt_off00008095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8095 10520 bytes
SHA-256: 30b401a66675412a4f5ddb1e30f8d46c0d49af7b3874277513dff48349e93842

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