Malicious PDF — malware analysis report

Static analysis result for SHA-256 56bef6245c617991…

MALICIOUS

PDF

67.8 KB Created: 2021-02-12 22:15:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b51f01dd710178d6bc1c63290e0a70a4 SHA-1: b6a5ad3ddfc618b9e0c41667597a5709e5e371b5 SHA-256: 56bef6245c617991e24c8361d98dc64984401a02f09b0f05c30d2a710cdb8e6f
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://bologen.ru/wix?keyword=lobb+wa-1+humidifier+owners+manual PDF link annotation
    • https://muwevowaxa.weebly.com/uploads/1/3/5/9/135992822/novowe.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/hiicdii/fuxajekibepotov.pdfIn PDF document text
    • https://cdn.sqhk.co/jidulopavoji/cjahhjh/89023184977.pdfIn PDF document text
    • https://cdn.sqhk.co/fosojatesog/5Llhhfc/55456072454.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/1947783.pdfIn PDF document text
    • https://lusugola.weebly.com/uploads/1/3/4/5/134599647/tagugos_piwameju.pdfIn PDF document text
    • https://fotiterik.weebly.com/uploads/1/3/5/3/135328456/2897393.pdfIn PDF document text
    • https://jewadasin.weebly.com/uploads/1/3/4/6/134604584/digevixumi_somewijujumu.pdfIn PDF document text
    • https://gupebuxoguwev.weebly.com/uploads/1/3/4/3/134381402/zakaxofidutu.pdfIn PDF document text
    • https://nulesurusisozi.weebly.com/uploads/1/3/4/7/134744420/40b8d52e.pdfIn PDF document text
    • https://febefadu.weebly.com/uploads/1/3/1/4/131453100/51a0c4c3d81.pdfIn PDF document text
    • https://dexidexida.weebly.com/uploads/1/3/4/2/134235246/jezuloxagamuvimusape.pdfIn PDF document text
    • https://cdn.sqhk.co/zamokaxu/uejcZgh/ritexedugu.pdfIn PDF document text
    • https://rajexomogalifi.weebly.com/uploads/1/3/4/8/134891851/918ad31.pdfIn PDF document text
    • https://cdn.sqhk.co/jukowejazus/5ihu57v/26512885669.pdfIn PDF document text
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/ditep.pdfIn PDF document text
    • https://gewavidabu.weebly.com/uploads/1/3/0/7/130775927/9c45ad204.pdfIn PDF document text
    • https://mokoxobijukox.weebly.com/uploads/1/3/4/3/134321678/c883cef9122e4.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/tonemakopinibem/queen_bed_sheet_size_in_feet.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/3374897506.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_off0000cc1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC1A 5404 bytes
SHA-256: eb9c3f9853c781dc2b19c95f7b1c9d60acda3d67d1ee6927291b4359b5b76d0a
font_01_sfnt_off0000de71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE71 10468 bytes
SHA-256: 2df1cc5b79b231b2778e57b3cb50de813ff2b695ead7d095c17c380a1add7151

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