Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db5a88085640089…

MALICIOUS

PDF

68.9 KB Created: 2021-03-03 02:25:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cd97c55008715f4c0d84f42772f0aef1 SHA-1: 327a3c7ef7318c95f2af832378d6c915e8635e63 SHA-256: 6db5a880856400898e112612cb34d6ac23cd7fc92d50877d8d74d4f7ac92aa89
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://gimoguvi.ru/wix?keyword=cars+games+unblocked+76 PDF link annotation
    • https://cdn.sqhk.co/pifizumux/OShhKhi/4099424294.pdfIn PDF document text
    • https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/3935800.pdfIn PDF document text
    • https://xigujevaw.weebly.com/uploads/1/3/4/7/134701692/d35e0fa.pdfIn PDF document text
    • http://ewop.space/gaweligutuvamilony0ua1.pdfIn PDF document text
    • http://farozemirig.scienceontheweb.net/rafokevarasal.pdfIn PDF document text
    • https://cdn.sqhk.co/jalotenabo/2kgeggZ/hello_bendy_neighbor.pdfIn PDF document text
    • https://cdn.sqhk.co/noperizapewo/cLVcZhi/pick_a_mechanical_pencil_definition.pdfIn PDF document text
    • https://wagigezo.weebly.com/uploads/1/3/0/7/130775958/mivakibulu.pdfIn PDF document text
    • https://siwuxamafovad.weebly.com/uploads/1/3/4/4/134489720/4e100a68ea8b8e2.pdfIn PDF document text
    • https://taxurazuzar.weebly.com/uploads/1/3/4/0/134042721/teguguperesofolamuv.pdfIn PDF document text
    • http://jewogipuwivi.medianewsonline.com/does_starbucks_give_raises.pdfIn PDF document text
    • https://jovinafunen.weebly.com/uploads/1/3/2/6/132695325/52c934090.pdfIn PDF document text
    • https://cdn.sqhk.co/juvowisire/UJGsifk/jefemuwisazesigewomeg.pdfIn PDF document text
    • http://cmbmarketing.agency/509228261890p6d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/sunset_beach_quotes_instagram.pdfIn PDF document text
    • http://zawuzujuw.epizy.com/3329753512.pdfIn PDF document text
    • http://fedukiz.epizy.com/mcdougal_littell_algebra_1_answers_page_296.pdfIn PDF document text
    • http://tapoloferazuziw.atwebpages.com/mtd_8_26_snowblower.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_off0000d129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD129 5600 bytes
SHA-256: 6334cb62d80a1aa8035d98b7efc553a460f897cb9ac2358fdd6816d40d72661a
font_01_sfnt_off0000e425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE425 10184 bytes
SHA-256: 9e9ffc5b1e1ec7f52dd168814705e622325666b931835d30fc541e082c14407f

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