Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00fc9e764c1b762…

MALICIOUS

PDF

68.0 KB Created: 2021-02-15 00:48:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 549d06018a6579bc8a1846ff1f2c2067 SHA-1: af1c8d68a3304bc7df96b6d269418e3b49eab526 SHA-256: d00fc9e764c1b762a9878b9204ca90c41865c89beb5161e051b41e1f853f47cb
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://crophysi.ru/wix?keyword=8+ball+pool+long+line+hack+apk+3.10.3 In PDF document text
    • https://kedixusivazusug.weebly.com/uploads/1/3/4/8/134869684/5106814.pdfIn PDF document text
    • https://tatefazaseg.weebly.com/uploads/1/3/4/0/134016926/4289189.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485308/normal_6008e75ab28f7.pdfIn PDF document text
    • https://jarofuzaduse.weebly.com/uploads/1/3/4/5/134502270/3275128.pdfIn PDF document text
    • https://togazozaxezux.weebly.com/uploads/1/3/1/6/131606461/922298.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365536/normal_5ff53fbb63011.pdfIn PDF document text
    • http://xevidome.iblogger.org/mindjet_project_management_templates.pdfIn PDF document text
    • https://sewigemebovoneb.weebly.com/uploads/1/3/3/9/133997870/81c938.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402517/normal_5fe06b9232b34.pdfIn PDF document text
    • https://buwavazazaradig.weebly.com/uploads/1/3/3/9/133999961/8646745.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428069/normal_6029a829349df.pdfIn PDF document text
    • http://azorocheat5.xyz/24565949177x1bw6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/amman_songs_ringtones_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/57529671538.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/sokovejesobim.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/27897160784.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_off0000cd4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4B 5616 bytes
SHA-256: 8b0bc82a28a1edae33e178cc73bbee6a7148affbbecec8b7e03b4bac1a23bffa
font_01_sfnt_off0000e074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE074 10060 bytes
SHA-256: 6a5456c1b9b745f13dbf6666f2dd9df974b832606f65c80add3a97c1bf8ff0a9

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