Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e60af7b4fe4bd4…

MALICIOUS

PDF

69.6 KB Created: 2021-03-01 22:41:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 67f2da2870ac753beef6813d73cefa7e SHA-1: bba156e32a7510cd482e7ef0687ad7c01ca67854 SHA-256: f0e60af7b4fe4bd49ab7d589006072462d7a1876ead24ea45248954c95b5fc16
244 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=call+of+fire+kranal+fiss+location In PDF document text
    • http://mini-camera-super.club/853889944706qti2.pdfIn PDF document text
    • http://ostanni.fun/84253305883ace9b.pdfIn PDF document text
    • https://xibupofuku.weebly.com/uploads/1/3/5/3/135306475/7221504.pdfIn PDF document text
    • https://bevarepovorumi.weebly.com/uploads/1/3/2/3/132303359/5939886.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505363/normal_5ff8530ced9d9.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/hbMImJo/gibapuxepuju.pdfIn PDF document text
    • https://jaloteke.weebly.com/uploads/1/3/4/0/134096083/7895116.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzudulo/Kcw1bgf/41604743811.pdfIn PDF document text
    • https://cdn.sqhk.co/taxosavasesa/caNjdy5/tazenedifixojinusesib.pdfIn PDF document text
    • https://wikagigodoxuf.weebly.com/uploads/1/3/2/8/132814929/b9d5337bf1480c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453103/normal_603b7c6ac757f.pdfIn PDF document text
    • https://cdn.sqhk.co/pifizumux/FggWajf/kidifoxabexosalefaxepude.pdfIn PDF document text
    • http://creditreportfast.info/why_does_my_ge_washing_machine_not_spin85qr7.pdfIn PDF document text
    • https://cdn.sqhk.co/pamezuravuno/iKgfjjv/visaduwe.pdfIn PDF document text
    • http://gradstroy.su/kodunafuh02cd.pdfIn PDF document text
    • http://epipog.com/sofezabiruxubzmrvw.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/godewumazek/agile_software_development_principles_patterns_and_practices_github.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/tazinufoni.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_off0000cf31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF31 4844 bytes
SHA-256: abc1915762af7c0caa0b892b10c1cc9d0c5ee3120aa94adf01a4e29b9d277bfc
font_01_sfnt_off0000dfbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBC 12804 bytes
SHA-256: 75c885a560835f47bff15f5610f630f08e89abdf7e26f222d4f839d6a74000a9

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