Malicious PDF — malware analysis report

Static analysis result for SHA-256 49298c3cc3fac28a…

MALICIOUS

PDF

61.2 KB Created: 2020-12-15 20:27:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 0d2b4c8f57d4c0f1b45b11d96971d6f2 SHA-1: bf0cfab088c245ce41fbd36448e9a0f378930320 SHA-256: 49298c3cc3fac28a593a2c41799db149d745d0e30f2e92bd2a6e99a4b611c668
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffking.ru/123?utm_term=craftsman+lt1000+deck+belt+replacement In PDF document text
    • https://cdn-cms.f-static.net/uploads/4478947/normal_5fb4b1f62c8ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492536/normal_5fcf2fc0e1c2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452382/normal_5fa071dcb1b37.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec7a5fe1-2a8f-47ef-bf8a-15a51c67d133/what_is_a_d20.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5693fbe9b693951291b9c/t/5fcc5388260a660a6bd0b3b7/1607226248634/57202182359.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51eb6f1-0786-47d3-92fd-e6e9e1bd922b/wikolazojitegi.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/karl_hans_welz_orgonite.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/lin_peng_baruch.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd10751491241adc48457a/1606226041232/jagojidimokizo.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/31568206758.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4b8f9ee0f32b8749e31a/1606372239589/39240220492.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/electrical_distribution_board_circuit_chart_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/797dd953-82ee-41df-90ac-c8fb23a12e51/ugk_underground_kingz_album_download.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/15908563418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b5e0ec6-4ad3-46bf-901a-13cf650a36f9/jufap.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFF2 5604 bytes
SHA-256: 2b9ac111f62392f21deaefec88c9b4bcf598454fbfc4c0a84844a1379da23afc
font_01_sfnt_off0000c2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2E3 10400 bytes
SHA-256: 47bbf3f37ab44f4f3a563a8317cd2d2bcbd7dd8cd149171e8c6000a13d04ddcf

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