Malicious PDF — malware analysis report

Static analysis result for SHA-256 082a1f6a89dfd197…

MALICIOUS

PDF

64.8 KB Created: 2021-02-12 12:27:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 29ede1c092b4fad77bff27cc1d372fe3 SHA-1: e54b1dbbaa58e4b1c9e96c8df7949848766675ad SHA-256: 082a1f6a89dfd1978df38faa1e30b2452cdb2bed0117cc20985bff6194376817
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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/123?utm_term=nigc+declination+letters PDF link annotation
    • https://cdn.sqhk.co/navimoxa/bhfM7jz/39743289799.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/D30gi1Q/falling_ball_calculator.pdfIn PDF document text
    • https://cdn.sqhk.co/vusanutoj/hZha1KG/bingo_board_fundraiser.pdfIn PDF document text
    • https://cdn.sqhk.co/poronujefino/gjaJBie/68942350965.pdfIn PDF document text
    • https://puzomukasudugun.weebly.com/uploads/1/3/4/8/134865935/016b5244039.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/m1ljfMn/art_of_conquest_dark_horizon_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/vixawutozama/gd7iawY/okra_and_tomatoes.pdfIn PDF document text
    • https://cdn.sqhk.co/nonuripot/shajdG0/besatugiruga.pdfIn PDF document text
    • http://kadesevi.iblogger.org/bhagwa_rang_song_ming.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://felubumasosazi.epizy.com/bournville_village_primary_school_uniform.pdfIn PDF document text
    • http://gemunedipu.rf.gd/bogoh_kasaha_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/26760377478.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/batman_wallpaper_free_for_pc.pdfIn PDF document text
    • http://puteroxono.epizy.com/html_form_without_csrf_protection_owasp.pdfIn PDF document text
    • http://livofos.epizy.com/4673437350.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_off0000c00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC00C 5076 bytes
SHA-256: 2aab1294bb8c5ab18fe7c8cc9e42bafd076c080c7572ce2049621e3189f5f0ad
font_01_sfnt_off0000d167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD167 10796 bytes
SHA-256: e01ae70e79510e0c5b0b822cfdfd6aad6ea578a883da61371a572ef1d02be2a6