Malicious PDF — malware analysis report

Static analysis result for SHA-256 09d8a7614444087e…

MALICIOUS

PDF

71.7 KB Created: 2021-02-14 04:15:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: db7ceb72e178ac9a372d0707e627cbfc SHA-1: 47c21e691efb7fced919132a641b37456046d714 SHA-256: 09d8a7614444087e35c44e0f7bdd41a072fce6fd2db2ad5f3166906e4180013a
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://yafferge.ru/wb?keyword=weekly%20daily%20planner%20template In PDF document text
    • https://guditeni.weebly.com/uploads/1/3/4/5/134529862/6208136.pdfIn PDF document text
    • http://pagowaxukixa.iblogger.org/damawemelosidasozegofovok.pdfIn PDF document text
    • https://zikixitifo.weebly.com/uploads/1/3/4/8/134897390/sonon_vunoremudavefe_rubufedumopu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459631/normal_5feebd8e7b341.pdfIn PDF document text
    • https://mezovojexojija.weebly.com/uploads/1/3/0/8/130874002/05538c5.pdfIn PDF document text
    • http://zamividiwido.22web.org/rabebaragajasegonexufosep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478398/normal_5fefcba54926d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377115/normal_60278243c04d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419211/normal_6003c5c8340a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460446/normal_5fdb63337f5a1.pdfIn PDF document text
    • https://veworokog.weebly.com/uploads/1/3/1/6/131606039/cdf49218.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450158/normal_601b23ee1d9a2.pdfIn PDF document text
    • http://xatitakuv.iblogger.org/mivawetizowukoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451363/normal_5fca4cc3f0506.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rafoputoxuxu.epizy.com/lexuxawoboseroliruweku.pdfIn PDF document text
    • http://giratas.epizy.com/archtop_guitar_plans.pdfIn PDF document text
    • http://tufozule.rf.gd/talisiwebini.pdfIn PDF document text
    • http://wajiletum.epizy.com/demographic_profile_thesis.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_off0000dcdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDD 5108 bytes
SHA-256: bfee9d32427fc275643ba13304edb2c0c0d23f1662f0ceda7aacbf3b7371d367
font_01_sfnt_off0000ee3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE3C 10436 bytes
SHA-256: e9661a81435d1b8fcabbe84617bcbd246ff773eb682a6850c8cfb29050d12cec

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