Malicious PDF — malware analysis report

Static analysis result for SHA-256 2215be5481f1b345…

MALICIOUS

PDF

66.6 KB Created: 2021-02-27 08:28:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: eb20b73d72c1bf8ce4a24cb699c63f26 SHA-1: 07ba375ad87e4197cf9cc8ae897738586a10a164 SHA-256: 2215be5481f1b3458186b9030491f33aa18af5647491078bc821afd649746941
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to business taxes, likely a lure to encourage clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8307

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://pelibifir.ru/aws?utm_term=how+to+estimate+small+business+taxes PDF link annotation
    • http://bufenukaje.22web.org/10425159460.pdfIn PDF document text
    • http://zapizimibit.22web.org/mahoning_county_sheriff_reports.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/ktm_1190_adventure_repair_manual.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375541/normal_60093146ea6a8.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/xutedirokeruxas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477138/normal_602f2841cf5b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453528/normal_5fdbfaeb8d8d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369783/normal_601da667e8923.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/pesetufavo/50243198666.pdfIn PDF document text
    • http://ginojakoli.rf.gd/how_to_report_uber_double_charge.pdfIn PDF document text
    • http://likijanima.epizy.com/jumivunifeletetoxuji.pdfIn PDF document text
    • http://wobowix.rf.gd/fantasy_football_cheat_sheet_yahoo_printable.pdfIn PDF document text
    • http://fabupumow.epizy.com/zonikidagusebar.pdfIn PDF document text
    • http://xuvotawelotito.epizy.com/astrodynamics_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/maplestory_2019_quest_guide.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF35 4996 bytes
SHA-256: cf90943bd727e089a173588e3c1cff13008ee2124ea611b781e1ab368c7fe111

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