Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e65b76d01730409…

MALICIOUS

PDF

65.9 KB Created: 2021-02-28 00:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 932900436b5a5183e2108a6536b75f31 SHA-1: ef901b549099b5067aff9c1151d949018aef1a00 SHA-256: 6e65b76d017304095a555f24e30ea8edaccdafa92903be7e94f8c05e2114fc3b
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://crophysi.ru/wix?keyword=bias+and+propaganda+quiz In PDF document text
    • https://sijotifibiga.weebly.com/uploads/1/3/0/9/130969940/59be8d90.pdfIn PDF document text
    • http://oneplusonemain.xyz/extremely_juicy_never_have_i_ever_questions92kwm.pdfIn PDF document text
    • http://optalpha.com/sorry_movie_maker_cant_open_this_project_file._the_file_might_not_be_compatiblegxn6s.pdfIn PDF document text
    • http://ukrdomonis.xyz/damon_and_pythias_storyi07y4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495251/normal_5fcefc2c7b3ec.pdfIn PDF document text
    • https://kutobuxuvesoga.weebly.com/uploads/1/3/0/7/130740510/72be3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470532/normal_5fced8158b452.pdfIn PDF document text
    • http://vehicleusains.com/491093545stlzu.pdfIn PDF document text
    • https://taxajoberaruvu.weebly.com/uploads/1/3/4/3/134320235/8021301.pdfIn PDF document text
    • https://fogakorix.weebly.com/uploads/1/3/3/9/133997140/kakujadudonut-pubuzas-fifaluvor.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/rizezobabub/gowadevesudugigurepusun.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/31996555482.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/ios_for_iphone_5s_free.pdfIn PDF document text
    • http://danesanifulen.rf.gd/ritejupakox.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/88628488906.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/dawson_s_creek_series_6_episode_guide.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_off0000c6d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D3 5320 bytes
SHA-256: f32028fdc06d60f01a8df1b82e39d3aa13a55489ab8463a09d885928c4f4b83b
font_01_sfnt_off0000d8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F9 9940 bytes
SHA-256: 59700635590cb6cc313c678e93c17b91e551f9c3c48c8160dff706160b570a92