Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c184cc0b03f2a17…

MALICIOUS

PDF

68.2 KB Created: 2021-02-19 09:55:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d7f500c45926a03c2ab891fe446f12cd SHA-1: ae2a8497b107aeaf6317ac2c63573001cbc5644d SHA-256: 6c184cc0b03f2a170f8bc71e99e7c3d03a4488f7d4d823e6192395ac44d95d9f
186 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/wb?keyword=what%20is%20deuteronomy%20all%20about PDF link annotation
    • https://burakatotofok.weebly.com/uploads/1/3/1/8/131871829/tusezorad.pdfIn PDF document text
    • https://rowopubogapog.weebly.com/uploads/1/3/4/2/134234702/nubusiwite_mokonejup.pdfIn PDF document text
    • http://submonster.xyz/cool_edit_pro_2.0_free_download_windows_xpmfe9b.pdfIn PDF document text
    • http://zazonowipudu.66ghz.com/perubat.pdfIn PDF document text
    • http://idealica-official.website/zimetega1f32c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487927/normal_5fd33d4b220f4.pdfIn PDF document text
    • http://taptopbot.com/bebanemojofi52xj.pdfIn PDF document text
    • https://saposoralax.weebly.com/uploads/1/3/6/0/136025319/1066860.pdfIn PDF document text
    • http://hurricane1.space/adwords_fundamentals_exam_answersxsux6.pdfIn PDF document text
    • http://zodusen.22web.org/suffix_ness_exercises.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493553/normal_5fdc0f2ee2010.pdfIn PDF document text
    • https://lovevupadu.weebly.com/uploads/1/3/5/3/135328586/d4ec709.pdfIn PDF document text
    • https://jimigafekalese.weebly.com/uploads/1/3/1/4/131407537/jewofew-pedijijotes-rabitezija.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486054/normal_602873320420a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vevisadoko.epizy.com/asfa_guidelines_for_therapeutic_apheresis_2016.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_off0000cef4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF4 5320 bytes
SHA-256: d9e3845215735538f38f9a27e2fdb1051d38e0730ce1f1a840f18fb746912e21
font_01_sfnt_off0000e0ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0EC 10504 bytes
SHA-256: 4732837373ffef778fce36a5ff062b967ee13b607bd2981cf7699aa8e6b0fbaa