Malicious PDF — malware analysis report

Static analysis result for SHA-256 b05b841d96f955b6…

MALICIOUS

PDF

70.3 KB Created: 2021-02-12 08:43:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f6ecbb6276df4b6f31c4f1d17f4f55c8 SHA-1: 11934b925612f9bde0c3b91d256a881ec61db598 SHA-256: b05b841d96f955b6ad6e88d1d23bb9d02e5bd43aec64e0d4ce1a2190ea5c88db
126 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
  • 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://baarspo.ru/wix?keyword=wu+jennifer+md PDF link annotation
    • http://halfraire.xyz/xafajinjqs2.pdfIn PDF document text
    • http://9gusevshop.website/html_responsive_template_generatoreheqd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480170/normal_5fce75223cd72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462073/normal_6012ced0efc57.pdfIn PDF document text
    • https://zabutamudosuwox.weebly.com/uploads/1/3/5/3/135345211/gatoregaturaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470027/normal_601d5142b01fc.pdfIn PDF document text
    • https://zapedumukovig.weebly.com/uploads/1/3/0/7/130775012/votatipiniguwem_vorusikemufu.pdfIn PDF document text
    • http://wofirulufe.iblogger.org/10081796102.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455375/normal_6012c922060cb.pdfIn PDF document text
    • https://pivatebovuwize.weebly.com/uploads/1/3/0/7/130775292/natovox_divubu_navitanej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wufalejopasedor.epizy.com/losotudugiwamifoma.pdfIn PDF document text
    • http://zonidagaxa.epizy.com/small_merge_software_free.pdfIn PDF document text
    • http://jogalasevoron.epizy.com/14267712229.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/nufifokowamanunati.pdfIn PDF document text
    • http://gonoluripep.rf.gd/beyond_skyline_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/tusijuwitomigajavusetule.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_off0000d9d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D2 4720 bytes
SHA-256: 2607452858e9fd6173a663d56dd26003dde60cee5adeb669e3f2d341477d4fef
font_01_sfnt_off0000e9dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9DD 10168 bytes
SHA-256: bce581483333a73645edd5e9c4962151d465b715bdee03f6fb17ce062d1405ff