Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2e3fd9d86960ad2…

MALICIOUS

PDF

125.3 KB Created: 2021-07-17 06:21:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 4aedc34a057e9bd488dd20407ab4e8c3 SHA-1: 3bea0f6ad7f4bee747ec812eb3d73a1f7209eeff SHA-256: f2e3fd9d86960ad279f33a6245b49e493a11bdcf62596017233a0d9ab67a43af
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits critical heuristics related to secret recovery lures. It uses an image lure that redirects to an external SEO redirector, likely a phishing attempt to harvest sensitive information. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4281

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://${yourOktaDomain}/oauth2 In PDF document text
    • https://${yourOktaDomain}/oauth2/v1/authorizeIn PDF document text
    • https://${yourOktaDomain}/oauth2/${authServerIdIn PDF document text
    • https://${yourOktaDomain}/oauth2/${authServerId}/v1/authorizeIn PDF document text
    • https://${yourOktaDomain}/oauth2/defaultIn PDF document text
    • https://${yourOktaDomain}/oauth2/default/v1/authorizeIn PDF document text
    • https://${yourOktaDomain}/.well-known/openid-configurationIn PDF document text
    • https://${yourOktaDomain}/oauth2/${authServerId}/.well-known/openid-configurationIn PDF document text
    • https://feedproxy.google.com/~r/sq/ugae/~3/XMoLd4EPXkg/square?utm_term=african+american+and+mexicanPDF link annotation
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e90cecdb8bb141bad89bd2/1625885932502/29813835997.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f03273b3de5a36b129285c/1626354292079/gaweg.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e940dbb67368755968bddf/1625899227799/zisalawizutek.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f222742e59700d3e519210/1626481268496/3044992993.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

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_off000189ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x189AC 10288 bytes
SHA-256: 8393e462dfdd589178ee4603912a4eb2db4777b222ca2e491cb9ffb739d1c39d
font_01_sfnt_off0001a0c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A0C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001b8d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B8D9 18160 bytes
SHA-256: be3b228c1b348b412fdd944537936522469a04d47cfcdae6245899efc95e6ea9

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