Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab6d8d75099bc2d9…

MALICIOUS

PDF

72.5 KB Created: 2021-02-23 19:43:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a965e681462b76b8129567140c13c3a0 SHA-1: ce4e1b9b826dffeb633dae200475a5207ab5d546 SHA-256: ab6d8d75099bc2d94db8e344f21b3318627b94906a9579061633cde09eef5cdd
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=arrl+operating+manual+11th+edition PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489240/normal_60183b9633f92.pdfIn PDF document text
    • https://cdn.sqhk.co/nugopanage/jchdahd/jimodaxes.pdfIn PDF document text
    • https://cdn.sqhk.co/degixodip/jgjjwie/5053603280.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417648/normal_5fd1b7382ecdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485693/normal_5fd6708425344.pdfIn PDF document text
    • https://cdn.sqhk.co/nuwezomu/ayoBWhg/99055555007.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fedufiporara/japugosezagesiwubafo.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/estimating_the_sum_worksheets.pdfIn PDF document text
    • http://xarujusezofa.epizy.com/42368169079.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/gebagelawowisakozulefumo.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/behavioral_science_syllabus.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 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_off0000d1d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D7 5120 bytes
SHA-256: d0bb5161a18d6860ffbc345190c45257185939d6833aea278f478c9a09a09ed8
font_01_sfnt_off0000e311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE311 10508 bytes
SHA-256: b172c9df306eafe9789c8f9848e4cfd1b90560216518687927901263891d7e9e
font_02_sfnt_off000106de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106DE 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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