Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe1049cc5ec37e7…

MALICIOUS

PDF

43.6 KB Created: 2020-10-30 00:50:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 32cf76834074b28446d970227aa97bf1 SHA-1: 20e266e430276168e8fb4f43cb9bf1fca1bed1fd SHA-256: 9fe1049cc5ec37e7906d949e44386842c92576493086a197b9964e455767e45f
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://ttraff.cc/123?keyword=selly+fortnite+accounts+for+sale In PDF document text
    • https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/4bbffd9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379054/normal_5f94a572b500b.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/mukava.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367925/normal_5f91ad96ee7d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5f8aaf4583bb5.pdfIn PDF document text
    • https://detosujedeke.weebly.com/uploads/1/3/4/3/134371576/timaxisalek.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/lovezujojejiz-marofefefaka-muputajiwube.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0483/8965/2648/files/89568040784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/7555/6290/files/forest_middle_school_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/0131/9061/files/gebepomarivamijabika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8414/3520/files/ford_soccer_club.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18d8d654-93a0-4511-aa3d-e823dc17f9c5/35117981492.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05f5262b-e8fe-4a83-9f70-14e419fb1d9f/fexox.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4B 2368 bytes
SHA-256: da36d31bbcd46698d81721a5ff45e210e517c31a4fdea327c39a35d87995264d
font_01_sfnt_off000069e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E5 5080 bytes
SHA-256: 1db7c3db73008832a66eb31a73c5b989f4e99ca5e67b1b5ae1afc94f907e9826
font_02_sfnt_off00007b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B42 11472 bytes
SHA-256: 4cc3aec34184a565b4455537fac6dbd3ad9f17ee0836b54e45f4e00daaeb9fb7