Malicious PDF — malware analysis report

Static analysis result for SHA-256 e93539a97672ce7f…

MALICIOUS

PDF

38.2 KB Created: 2020-08-03 20:03:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fccd1a5fffb54927e5ec2e9d2caf1d57 SHA-1: f3c67ebd538e27a612e0529124ec6032c2939a6b SHA-256: e93539a97672ce7f1611ac572346d5ea36796bb20bcb789777171261f15876b1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious by an ML classifier and contains numerous embedded links. One link points to a known malicious redirector, and the document body itself contains multiple URLs, suggesting a link farm or SEO spam tactic. The primary intent appears to be directing users to potentially harmful external content through a deceptive document.

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=possessive+determiners+exercises+pdf In PDF document text
    • http://files.lhfieldfamilyfdn.org/uploads/1/3/1/3/131398091/6550427.pdfIn PDF document text
    • http://momunile.shaynamade.com/uploads/1/3/0/8/130874304/mewitew.pdfIn PDF document text
    • http://files.crowmoonhealing.com/uploads/1/3/1/1/131163902/9373789.pdfIn PDF document text
    • http://files.energycorridorofficespace.com/uploads/1/3/0/7/130775448/5902274.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/1/0430/9739/1261/files/fireproof_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/tuluduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4737/9356/files/vavakosigigizabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/98099776185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/the_secret_of_monkey_island.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5962/5627/files/lagajojowir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/dipofekerikorawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/69174803664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7551/8107/files/27700461094.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off000043f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43F2 5188 bytes
SHA-256: 44d312751769a79db690b9c393338aec1b9d0357c20c1210fd9464b4d56cf06a
font_01_sfnt_off00005590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5590 9696 bytes
SHA-256: a8559c048873905c143aeac8bf8b5417daf5e21f7eaddd9c98f8a7c822c79637
font_02_sfnt_off000076f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F3 16060 bytes
SHA-256: 313c3940a6f4aae92ceaa1b1a843de6e6f13411355a457aba6e018c383fce54c

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