Malicious PDF — malware analysis report

Static analysis result for SHA-256 e07e43953ef03052…

MALICIOUS

PDF

42.6 KB Created: 2020-07-29 08:47:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39dec20c935458e77e2ebe50d336b69a SHA-1: d1bb5cfd0304ed873e7ac4e0122ee896a3068180 SHA-256: e07e43953ef03052750d64c13a8c9724a9c3109363c8c228fdda445050a69e9f
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high number of external links, many pointing to a link farm. One critical heuristic identified a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs.

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=analgesicos+lista+pdf In PDF document text
    • http://files.globalluxeventures.com/uploads/1/3/0/8/130813997/a2d321d45.pdfIn PDF document text
    • http://files.daniellebaldassari.com/uploads/1/3/2/7/132710783/nolotin-jilesitonozufuw-merapawefugoget.pdfIn PDF document text
    • http://files.davidswinston.com/uploads/1/3/1/4/131453560/8191187e7b84c0.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/1/0437/6995/4453/files/lonugoxumusetire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7202/8823/files/vezusetijavupawukexamoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/27072595159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/fepetakevifarosiposev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/wozekejugug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/56329429182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/tiwupigavomojakok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8769/9876/files/gumenasuxuxitufogawedot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/mejurigojek.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 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_off00006aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEE 5004 bytes
SHA-256: 54b65192dee44a196d5bf094735ea7f634f90b2781e81cc4423e98e266413917
font_01_sfnt_off00007bfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFE 9948 bytes
SHA-256: f9891db0c5bada5ee9d123e842c10827e59a54d8b48a5502442cfe76fd4b9335

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