Malicious PDF — malware analysis report

Static analysis result for SHA-256 2245d90707acb174…

MALICIOUS

PDF

75.1 KB Created: 2021-02-08 06:50:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2b0fffc02f8db6d9789b458686699daa SHA-1: 48c5add37dbfca95002f14e233ebcd4111209392 SHA-256: 2245d90707acb174feed07943f747cb6cf2749f992bdfc46121136fe24c4c6a7
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/aws?utm_term=chickie+and+pete%2527+s+nutritional+information PDF link annotation
    • https://dodukitomot.weebly.com/uploads/1/3/1/4/131407143/wefumaxakeva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408335/normal_6020af44b954c.pdfIn PDF document text
    • https://revasarubon.weebly.com/uploads/1/3/5/2/135295272/6495141.pdfIn PDF document text
    • https://zekupepub.weebly.com/uploads/1/3/5/9/135992873/9169696.pdfIn PDF document text
    • https://maritomumotoko.weebly.com/uploads/1/3/4/5/134512683/b6327129.pdfIn PDF document text
    • https://radunepik.weebly.com/uploads/1/3/4/6/134617153/sozuxuwuruz.pdfIn PDF document text
    • http://kefikajutadab.22web.org/47612152661.pdfIn PDF document text
    • https://jotitotibewava.weebly.com/uploads/1/3/1/3/131383271/4be382d59c2bd.pdfIn PDF document text
    • https://setixifofu.weebly.com/uploads/1/3/1/6/131606861/77919519f.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/ZcN7ghf/cartoon_network_hd_plus_channel_number_in_airtel.pdfIn PDF document text
    • http://debesur.iblogger.org/sample_checkbook_balance_sheet.pdfIn PDF document text
    • https://velineninebag.weebly.com/uploads/1/3/4/6/134608195/xinulureb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://famifel.rf.gd/gildan_shirt_size_guide.pdfIn PDF document text
    • http://tefinavi.epizy.com/56411622374.pdfIn PDF document text
    • http://gufaxepelirub.rf.gd/windows_7_professional_n_activator.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_off0000e5ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AD 5396 bytes
SHA-256: 5c6087feec9393bc97a3556c07a20e5c80a05e9b274308675f6b8f5454ec101f
font_01_sfnt_off0000f7e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E7 12256 bytes
SHA-256: 96bfd18bf97d3ce882db1390ba0a8b4d2473236a6d3eb563e348951f7841c1f7