Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb32202eaebf9a5c…

MALICIOUS

PDF

37.9 KB Created: 2020-10-26 17:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 402eb69f5496c1ac3439b78c22cd311f SHA-1: f50e919af25ab920ee36d892ff1c685024703599 SHA-256: bb32202eaebf9a5c70a17e06810c8cfb40cb07a8342ec114f8bfad89b16655ec
142 Risk Score

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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/aws?keyword=astro+2nd+canadian+edition+ghose+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366965/normal_5f872de58a3df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372673/normal_5f88bcdbcd53d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382949/normal_5f8c080cd703a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411218/normal_5f93436f2514a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388421/normal_5f93db18562f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5f8706bc28e72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f8cf84d334a1.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/1/0496/3070/7865/files/77714933480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4365/9677/files/18580497288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/0464/1436/files/mupalumubogavuzuwemiwoj.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/didetavividubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5eac5af-ae50-41cd-bdc1-8f4e2c5bcd11/40928168831.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7209ca8a-c2ea-4b41-8d2b-60d7a9efe40a/memetovakawuru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84ccb56f-811a-4498-9497-c1434f64e2f9/82279103989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1a02b81-a9fd-49f3-ade1-66ff9473e317/wowewobosejimafiwoz.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/55311872015.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/94426294595.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/localism_vs_globalism.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 4

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_off00005464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5464 5508 bytes
SHA-256: f3962095269dea0f8e1527aa8a18755770dc5244071d773179cbda72803a5c1f
font_01_sfnt_off00006716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6716 10336 bytes
SHA-256: b175d0da1eb8f81acbaeea6c37c4eeb07231378f3dddb116cfaf38844c36713b

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