Malicious PDF — malware analysis report

Static analysis result for SHA-256 d032f22dc397b1d0…

MALICIOUS

PDF

71.5 KB Created: 2021-02-14 17:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f5dccadeb2526fb376749d51d750145b SHA-1: ec0e1fbb9775a3386b4161f32e4dc574a597be5c SHA-256: d032f22dc397b1d0977947390b7ddce63820ce96f0a126bba8c58f73b74685c0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=socialism+vs+communism+vs+capitalism+worksheet PDF link annotation
    • https://cdn.sqhk.co/toviranevu/cgjifgJ/wunedelaxitutituvibomaseg.pdfIn PDF document text
    • http://dugules.iblogger.org/65266905811.pdfIn PDF document text
    • https://cdn.sqhk.co/vakenuda/wPhfqgi/prizefighter_band_chicago.pdfIn PDF document text
    • https://cdn.sqhk.co/dapumexader/djaijgc/3541213509.pdfIn PDF document text
    • https://sasominafa.weebly.com/uploads/1/3/4/3/134362810/d2ae45db20.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/8847750.pdfIn PDF document text
    • https://femowoziso.weebly.com/uploads/1/3/1/3/131398515/zigakoxitepakes-navegapodajoz-gurosesalad.pdfIn PDF document text
    • http://jevijuratovate.22web.org/video_editor_apk_tanpa_watermark.pdfIn PDF document text
    • https://cdn.sqhk.co/zewezerezi/HkiagKn/47809568859.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/devawezesija-pakexijeg-fosesalijozonej.pdfIn PDF document text
    • https://cdn.sqhk.co/vapumojemov/Clt4dhg/yellow_light_bulbs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zusevamasor/tatixigimum.pdfIn PDF document text
    • http://divojeniro.epizy.com/bloomberg_terminal_font.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/40484397457.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/pulsar_200_ns_images.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/69570697743.pdfIn PDF document text
    • http://xaxibalese.epizy.com/powarudobevapuva.pdfIn PDF document text
    • http://kavisawadafo.epizy.com/desotasogeliwodimivin.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/92472549065.pdfIn PDF document text
    • http://jozivunawitud.rf.gd/mi_store_lite_app.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC945 5376 bytes
SHA-256: 031ab7bf81669b55dee3fbe0917bf4ec8fa8d9302cad840a9839008cfb5dc92a
font_01_sfnt_off0000db62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB62 12276 bytes
SHA-256: 481c009d3a3d5011c9ee06d841b1ab4be6fa67b0660f38ca2d48036957393be6
font_02_sfnt_off000102aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102AA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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