Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b35ab7491d0adf3…

MALICIOUS

PDF

66.8 KB Created: 2020-11-11 01:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 70a06759d3ef15d7f2051ae91cfdc0a2 SHA-1: 01d49b15932f5ff513354afa6ee7daeb8f590933 SHA-256: 3b35ab7491d0adf3f655b835ef8e3335b2a0aa804f64c489d5104eb22d0af55e
244 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffking.ru/123?keyword=1+prop+z+test+calculator+online In PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/wokezito.pdfIn PDF document text
    • https://nulumekut.weebly.com/uploads/1/3/4/3/134373747/d8f858c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365555/normal_5f897646ea050.pdfIn PDF document text
    • https://warajepij.weebly.com/uploads/1/3/4/6/134608856/018d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393353/normal_5fa57f78d7b1f.pdfIn PDF document text
    • https://ziripovopibew.weebly.com/uploads/1/3/0/8/130874468/d6f9460d9e.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/6252992.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392649/normal_5fa3e305d2323.pdfIn PDF document text
    • https://vugigedekamem.weebly.com/uploads/1/3/4/3/134339685/c56a6cc97e56792.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/910350.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366339/normal_5f879d1f0f908.pdfIn PDF document text
    • https://riramiseba.weebly.com/uploads/1/3/4/3/134369938/bunejasa.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/gedesisumi/code_blue_band_vancouver.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/tepozolotiwisofumuvofoged.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d5a44da-b802-4965-88e1-e86c14757398/66485170438.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_off0000ca17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA17 4932 bytes
SHA-256: 19f95b4b641897ab3d09e4f41637b6a35f4ab266401c41c766950870685cd63e
font_01_sfnt_off0000daf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF6 10272 bytes
SHA-256: 925eacff214e07bc31dd37154fa1379d3e127efc16c453d6a1a66fa9904cac4d

Open this report in the interactive analyzer, or submit your own file for analysis.