Malicious PDF — malware analysis report

Static analysis result for SHA-256 39eae60157a12f87…

MALICIOUS

PDF

47.1 KB Created: 2020-08-21 15:19:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b22b1e2379cf2763fba2d6dd853a8dd3 SHA-1: 251e94c8014f58e4caff980fac2439528bc1f598 SHA-256: 39eae60157a12f873765e0fff4c2d6da97bb413ddd69dc5233c78df382a0570d
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to containing a link farm with a high number of external links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector link. This suggests the primary purpose is to lure users to malicious sites.

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=best+bubble+shooter+games+for+android+2016 In PDF document text
    • http://files.shopgirlcookies.com/uploads/1/3/1/6/131606186/62d7b18dcea.pdfIn PDF document text
    • http://files.celandscapers.com/uploads/1/3/1/8/131871462/jajoja.pdfIn PDF document text
    • http://files.xaviermassart.eu/uploads/1/3/1/3/131384136/dilefamo_wuzog.pdfIn PDF document text
    • http://files.incrediblemyronb.com/uploads/1/3/0/7/130775391/jejiveziriwade.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/1/0433/2004/9822/files/76416685649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8008/9760/files/wupukikejafodikax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/tesisavalopona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5679/0695/files/disawiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8239/0431/files/nibupakisamakop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1543/7468/files/tetapugaxirikivutujuwilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4066/9602/files/guzekigunazakabuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/59830768415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/xamuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/27789702294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/xofejepevavobezifofolul.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 5

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_off00006071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6071 5992 bytes
SHA-256: ac7446bf610337adc87809e139a20bbe502df676e14fcda611e0b38ec0e736f3
font_01_sfnt_off000074aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AA 10636 bytes
SHA-256: a59c322672e35dbf28b08f5897f682d8e4edd546cd48480b35d20cc3c16798ef
font_02_sfnt_off0000993d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x993D 16340 bytes
SHA-256: b1c96b8ac35a75edf2185e1083bdd07fe3133323670fae1dff40f63ad20205d0

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