Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3096d1f579cf0b9…

MALICIOUS

PDF

71.6 KB Created: 2021-02-21 15:45:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3069f8f3fa1117a510a5ecc1c8bc351f SHA-1: 15784a42e19b2580c3874be6b83cd1720eca7e6c SHA-256: b3096d1f579cf0b9597e15f8189dc0cfb5a14189c5bb82c8cf36fc7d01157941
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://crophysi.ru/wix?keyword=quickbooks+income+statement+template In PDF document text
    • https://static.s123-cdn-static.com/uploads/4446944/normal_60001fcae11a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494866/normal_5fc9aa8eabd2b.pdfIn PDF document text
    • http://jirafka.space/sonotawofofixik00sj1.pdfIn PDF document text
    • https://cdn.sqhk.co/sarimotel/h9Wjhic/directv_now_free_trial_20_charge.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496826/normal_5fd68a5b48fa0.pdfIn PDF document text
    • http://doordash.fun/51134294380fid6z.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/38122238463uoaeq.pdfIn PDF document text
    • http://hamlikjorettoop.ru/49552849606rca1.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/ejhghjh/kadawizapekonamutegapama.pdfIn PDF document text
    • http://glawerry.online/franchise_hockey_manager_6_reviewfwzcv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377933/normal_600831a900a53.pdfIn PDF document text
    • http://storeeu.info/fiziwupifo3ac7j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_6029563007d1e.pdfIn PDF document text
    • http://akvatehnika74.ru/zixulisawifaraff3rh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446921/normal_6000f0f1a12b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403534/normal_5fd08c838fa79.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/xukirizugukugi/50495978014.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/hoperf_rfm22b_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/logical_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/mawesi.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_off0000d9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D5 5248 bytes
SHA-256: b7e3fb3ffa46695d9b768796dd4af640f035a9c1610fcc76a4d7c8d481d436e2
font_01_sfnt_off0000eb9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9E 10892 bytes
SHA-256: 69d4dfb27a40dcfbbc5466c483945f5cd52322c473fce28c4ad54a68085a92a2

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