Malicious PDF — malware analysis report

Static analysis result for SHA-256 16a5e423c8dd7cb8…

MALICIOUS

PDF

67.0 KB Created: 2021-02-13 19:21:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 73faa0ad973712acae828a68da2e8221 SHA-1: 0feaa138c585f422b77202d24588370a4af6b050 SHA-256: 16a5e423c8dd7cb864a6ff9a4c30675e651bfe0fcc5ec0a14b5642d0975f920b
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://bologen.ru/wix?keyword=wayne+dyer+pdf+free PDF link annotation
    • http://rapegutuxipik.22web.org/pediatric_septic_shock_guidelines_2018.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413473/normal_601969fbbaca2.pdfIn PDF document text
    • https://zuwulixomelonib.weebly.com/uploads/1/3/4/3/134385653/xupuso-kexoxe-ranateruwej-dajumin.pdfIn PDF document text
    • https://cdn.sqhk.co/bivuwusim/idgicQ2/44934837362.pdfIn PDF document text
    • https://cdn.sqhk.co/nenuguvan/Iigmpgd/75443379430.pdfIn PDF document text
    • https://dedopaka.weebly.com/uploads/1/3/4/4/134498192/9920159.pdfIn PDF document text
    • http://legivupipofu.66ghz.com/juxoduzot.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451375/normal_5fde370238304.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471273/normal_6027bbef07061.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413977/normal_5fe9ffda6703b.pdfIn PDF document text
    • https://jedadizonavo.weebly.com/uploads/1/3/4/7/134721040/4116635.pdfIn PDF document text
    • https://paboludozov.weebly.com/uploads/1/3/4/3/134333588/361371.pdfIn PDF document text
    • https://mabaxezo.weebly.com/uploads/1/3/4/7/134766945/pidunagi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wewefaxekedafoz.epizy.com/atf_box_setup_v12._67.pdfIn PDF document text
    • http://newewixojarulup.epizy.com/9310471584.pdfIn PDF document text
    • http://vulemeke.rf.gd/alaipayuthey_movie_songs_free_masstamilan.pdfIn PDF document text
    • http://defipezisezujor.rf.gd/bugler_s_holiday_sheet_music_free_trumpet.pdfIn PDF document text
    • http://buvudateba.epizy.com/aucc_fair_dealing_guidelines.pdfIn PDF document text
    • http://vugoban.epizy.com/10149289624.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_off0000cbc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBC6 4940 bytes
SHA-256: 67dc97b904c6540234ad70adac320209ba727fae65f4276958e1836319e65b42
font_01_sfnt_off0000dcbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBD 10080 bytes
SHA-256: 19235bd70f9c141acfc2aaf17a8ae4eb0c91d8f013019f14f35e43f99f651d06