Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5a8070fdfcacca…

MALICIOUS

PDF

70.0 KB Created: 2021-02-26 11:32:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0a71c6971923db52ab0c47b2b20dbd45 SHA-1: 572b8345ce01ed9ba37623004d213f7965cb2858 SHA-256: ed5a8070fdfcaccae3429743694fd0c2eb6422f9ccabe0f06b7440da9c27ff90
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://leonvi.ru/award?keyword=what%2527s+the+safe+haven+law PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4380705/normal_5ff7d3d4c6d4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460450/normal_5fe7b0473be86.pdfIn PDF document text
    • https://bebojeraje.weebly.com/uploads/1/3/5/3/135302211/burexo_zolexaxexojal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407303/normal_5fe6493f63859.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/jbihLKC/the_wolf_hunterz_dyztopia.pdfIn PDF document text
    • https://xufidevudog.weebly.com/uploads/1/3/4/3/134389214/3698ae3c04122.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461219/normal_5fff994cf124a.pdfIn PDF document text
    • http://gsmall.space/the_lippincott_manual_of_nursing_practice_2nd_edition8g3aq.pdfIn PDF document text
    • http://gratoramaa.space/guided_meditation_for_stress_relief_and_sleep9y3pi.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/t5ihibt/zuxef.pdfIn PDF document text
    • https://cdn.sqhk.co/wepigosogo/jjggiji/pirate_crafts_for_preschoolers.pdfIn PDF document text
    • http://itawegan.space/my_maths_cosine_rule_answersti7x0.pdfIn PDF document text
    • http://bellissimo.online/21961131960a3360.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491159/normal_6014507ce231b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449184/normal_6012c7911d4ac.pdfIn PDF document text
    • https://kasababafaraw.weebly.com/uploads/1/3/5/3/135336348/927188.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d7c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C5 4960 bytes
SHA-256: 8a0227fff7803c2cc8ba8bcb9e1759a64a2d597c08c9a3c61203edf6d350c5b3
font_01_sfnt_off0000e8cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CB 10000 bytes
SHA-256: 6cc1688468e4ac761305025483ec221afb715196166869fa5a05059fb475ee6e