Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99246b9da7c68cb…

MALICIOUS

PDF

40.7 KB Created: 2020-09-11 20:57:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a4649ec28e0b4ea14b885ad18e65126 SHA-1: 5ca1df83f15ef29250d94ada0ceb3a0d77546f87 SHA-256: e99246b9da7c68cba560c5903220d58ba72207541ee24635c0935f37f044b2fa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with critical heuristics identifying it as a malicious redirector and a link farm. The document body, though heavily obfuscated, contains text suggesting a 'Sql server security auditing report' and includes URLs that are likely part of a phishing or malware distribution campaign. The ML classifier strongly supports the malicious verdict.

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.club/wix?keyword=sql+server+security+auditing+report In PDF document text
    • http://lexiteb.america1funding.com/uploads/1/3/2/6/132696194/d1d22d5.pdfIn PDF document text
    • http://sofedegub.shannondellmodelrailroad.org/uploads/1/3/1/4/131406710/8ab46dbe0f4.pdfIn PDF document text
    • http://files.miniphysio.co/uploads/1/3/2/8/132814073/lewoxefel_nunufaviwiloro.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/1/0432/4537/1549/files/functional_finishes_for_textiles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/4132/4962/files/phy_android_17_farmable_sa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5226/files/71361166870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/38009035844.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6cf0f5_c2fe039e63a7450bbf2fb5c4d974cafe.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/89c6ad_8fb507fbb7874a35a060ddcb42d65db4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/87ad98_801f9a62ffe3425ba149c7e987b29867.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/717a42_97b90bcc8d804ebba8dd752da42bc888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/64638348431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23342697578.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 6

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_off00005fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB6 5632 bytes
SHA-256: de4de497ede46facccba97e6c8aa407297dce6dfc56fe842166fd7f86708967d
font_01_sfnt_off000072fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72FE 10356 bytes
SHA-256: 27e54a6c49013e075b57b021b847e0e94f0458bfde07d68e319daec3ec692db0

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