Malicious PDF — malware analysis report

Static analysis result for SHA-256 8766655afd99b004…

MALICIOUS

PDF

69.4 KB Created: 2021-03-06 09:54:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5083c878ca42d27e9de9254dfb0f3ca7 SHA-1: fcbf04923704f9faae737098aaa3e102225e800e SHA-256: 8766655afd99b004dd5da00daba9fa89a760e81c17e7a7f086e86170c1e1fb78
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://vilenefex.ru/wix?keyword=pitcher+and+basin+clipart PDF link annotation
    • https://cdn.sqhk.co/jovowosifo/if1Pgd8/tipuviriraxat.pdfIn PDF document text
    • https://komovifewujip.weebly.com/uploads/1/3/4/8/134895136/webab-bomibibinelom-tejijizafez-dobedi.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunaropiz/sWwjaMf/75829890177.pdfIn PDF document text
    • https://vawisopikev.weebly.com/uploads/1/3/2/7/132740649/vowinuzokobovin.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/39ad0806b89.pdfIn PDF document text
    • https://cdn.sqhk.co/gikunixa/daPhjNi/motogp_2019_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a62e46b8-d933-4087-892c-e5439cec6991.filesusr.com/ugd/e9cba9_be372ff5cb8b477fb1a393cd3a1c4ade.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fb5a71b-0d66-4869-826b-5edc42fbe019/a_simple_favour_movie_review.pdfIn PDF document text
    • http://raxatimax.rf.gd/zopopilusawafet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b42d313-aa3d-45f0-aeb7-740400e7afad/nikon_coolpix_s9700_camera.pdfIn PDF document text
    • http://fedokow.rf.gd/kewimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11217c39-ceff-4b81-b2aa-7463cafc7bc7/80344627804.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4ef08de-1a92-4cf8-a2a4-02bf2a00f47d/36373266551.pdfIn PDF document text
    • https://850a36a1-966c-46c3-86ed-e15bcb5778a7.filesusr.com/ugd/ede58b_c6aa53715f0f448ab88fa30e5d8aad1b.pdf?index=trueIn PDF document text
    • https://f9a132f0-acc9-4761-b7d8-38025aedd849.filesusr.com/ugd/5c71d6_ee19924c9d4f4716ba9e9de132c8a1b9.pdf?index=trueIn PDF document text
    • https://413f70bc-0247-4a04-a3fc-eabb14e2b93f.filesusr.com/ugd/f18ee6_e4302aa3886644f18159f06954bcc524.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/540cc023-2093-49ed-be26-120037d59828/vixixebibo.pdfIn PDF document text
    • https://b00f38ea-0d13-4519-ab0f-1253f0d03ca0.filesusr.com/ugd/289c5e_0bcf5a3dd98d4c668205a2a309c87c75.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/081bd32f-aec0-4f90-ac23-7d833b2a748f/tamax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea094ca0-3a1c-4420-80a2-d61d1a0dcd06/67101222242.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_off0000d2e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2E3 5300 bytes
SHA-256: af35e3bb60607191b6234e650acd2e14e72abce0e89f649207144b37c21e7b47
font_01_sfnt_off0000e4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D6 10452 bytes
SHA-256: bb576d08a11e6fad010493f70f98db521fdc624ccee2b8e290fae86ef5f425bf

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