Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b1707ff40203a73…

MALICIOUS

PDF

67.5 KB Created: 2021-02-05 17:04:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 4e973b925c4b570d1617c724528e1dbe SHA-1: 9c8996bc88425332df4f0dcde09ab72f54f0d386 SHA-256: 0b1707ff40203a734fef07ab8ada3e3e0f1803ee61d7528c63e3e94057a513f7
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://yafferge.ru/wb?keyword=rise%20against%20%20setlist In PDF document text
    • http://pokaguzuxobomez.iblogger.org/bluffmaster_2005_movie.pdfIn PDF document text
    • http://ig-mediateam.net/dazalexewipuwolajuzumusejw1lj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_6010993d31933.pdfIn PDF document text
    • https://sazaburesifug.weebly.com/uploads/1/3/4/2/134265765/koberif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381105/normal_5fc631a1b211e.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/2ed37ed69f2d.pdfIn PDF document text
    • http://jefozogez.66ghz.com/adjustable_bed_sheets_full_xl.pdfIn PDF document text
    • https://fomodefoz.weebly.com/uploads/1/3/5/9/135958111/gixanozu.pdfIn PDF document text
    • http://skameyki.club/taurus_man_secrets_free_downloadc2xro.pdfIn PDF document text
    • http://rabota-plus.club/free_bible_english_standard_versiond5bp0.pdfIn PDF document text
    • https://xitozenajoxoge.weebly.com/uploads/1/3/2/6/132681812/vebetot.pdfIn PDF document text
    • https://wipugetawunuw.weebly.com/uploads/1/3/5/3/135302850/funam_zikofaxesija_manijavedasovan.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443823/normal_5ff662ed0ed1c.pdfIn PDF document text
    • http://b4shop.icu/bedeludef1mvd6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://badizep.epizy.com/contemplate_doing_definition.pdfIn PDF document text
    • http://wukevuwotud.rf.gd/texas_food_handlers_test_answers_learn2serve.pdfIn PDF document text
    • http://juvojifexuf.epizy.com/gasefo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/46793169742.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_off0000c995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC995 4764 bytes
SHA-256: d2adb1a6f2142f9b4ff80e101eb761703f9a3aaab1f8a0be14abe9647df172d7
font_01_sfnt_off0000d9e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E7 11608 bytes
SHA-256: cc3bcd771259a73b9f9585abafb28b053f1c1cca3637571998fd0ca2b42a4c82