Malicious PDF — malware analysis report

Static analysis result for SHA-256 926256a294bfb3e1…

MALICIOUS

PDF

65.3 KB Created: 2021-01-28 12:04:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5069fb1202c224466b14b5981dc4b984 SHA-1: a57f6c46255da44c1a5fe0da47a0b90db9edd7ce SHA-256: 926256a294bfb3e1d27a60d770b74df2cda32ad29a12c8dfa79b9b30f714d06f
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/aws?utm_term=bhairava+songs++starmusiq PDF link annotation
    • http://wezugeviliwibu.iblogger.org/borrelia_burgdorferi_patogenia.pdfIn PDF document text
    • http://idealica-italy.site/mavosobi8xj54.pdfIn PDF document text
    • https://wubepifumemav.weebly.com/uploads/1/3/4/1/134109226/6478437.pdfIn PDF document text
    • https://cdn.sqhk.co/rajemaramiw/hoFgeid/egg_finder_hack_mod.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/vofadoloves/30043931393.pdfIn PDF document text
    • https://s3.amazonaws.com/dupula/enhanced_due_diligence_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/musica_gratis_iphone_7.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/zolisozu.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/first_international_flight_guide.pdfIn PDF document text
    • http://webekilijonelew.epizy.com/depaxur.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/envato_after_effects_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/faxapexopag.pdfIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/94484031257.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/tixatovitifoverop.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/bangla_song_oporadhi_video_song.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_off0000c277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC277 5304 bytes
SHA-256: 19cd298c0b58e9b788b9751537c426a43cbf56dda0d191150797005bb6039c1e
font_01_sfnt_off0000d460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD460 10748 bytes
SHA-256: 5bc03f214f00808a4b737e057bd8b7668875e89a551ec49346d72b38bf0983d4