Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f5b0f1e9047a98b…

MALICIOUS

PDF

67.3 KB Created: 2021-02-25 15:45:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b16bc67e950d50b46265e0c90ffe606f SHA-1: ddf1636db9993eae62747de961de95e790a630f2 SHA-256: 6f5b0f1e9047a98b280318bcc725b85e19e9ed5f6b49902d02876a2b47693360
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://jottigo.ru/wix?keyword=guitar+hero+unblocked+download PDF link annotation
    • http://busivel.xyz/pebepexuzufekonugegabo9m6il.pdfIn PDF document text
    • https://cdn.sqhk.co/tifobebe/hicHhgz/zoguvupif.pdfIn PDF document text
    • https://cdn.sqhk.co/velujuvaxal/ibejeij/wexakajafanenuwe.pdfIn PDF document text
    • http://gprofights.ru/bewaguzq2iq.pdfIn PDF document text
    • http://trylait.club/ponasuwobiror0mzmw.pdfIn PDF document text
    • https://cdn.sqhk.co/rabataxuvax/ujh6jcR/uncertainty_avoidance_usa_vs_china.pdfIn PDF document text
    • http://cethq.xyz/99801276836q71h8.pdfIn PDF document text
    • https://kapofered.weebly.com/uploads/1/3/2/6/132680839/433d7411535e0ee.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/do_chrysanthemums_self_seed.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/gfNjiat/88409015343.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zilowovuv.atwebpages.com/gaxugujetanuriwigivukem.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/lg_lfx28968st_ice_maker_parts.pdfIn PDF document text
    • http://fokafupu.rf.gd/nigijaju.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_off0000cc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0F 5176 bytes
SHA-256: 721b784851c535e05e9ee7c36d1c4e14ba9b7f2d4fef79260e71ebc696cb839f
font_01_sfnt_off0000ddb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB5 10208 bytes
SHA-256: e0e80400726791b2e3a361d0eedcfa467ab4833f8d6daef3af4700bdcb9ebd58