Malicious PDF — malware analysis report

Static analysis result for SHA-256 46505ad0f7511504…

MALICIOUS

PDF

64.7 KB Created: 2021-02-17 17:52:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b44814a6857884588a1462c6a3cadf17 SHA-1: c37c56b45649748c83e1f5bba544260e56d37dad SHA-256: 46505ad0f75115044d841b176e6c638c4ad9cc8c5d6d2693bdc4c474a0d04d69
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=guiding+light+lyrics+foy+vance+ft+ed+sheeran In PDF document text
    • http://itravelgr.com/anime_idol_group_name_generatorlbawy.pdfIn PDF document text
    • http://winoraama.site/the_hat_pastrami_nutritional_informationbc0g0.pdfIn PDF document text
    • http://1offpark.xyz/25693422807qwxky.pdfIn PDF document text
    • https://tijezelaxupoki.weebly.com/uploads/1/3/5/3/135340387/papenuxudufaxobarawi.pdfIn PDF document text
    • http://stakingyfi.com/pemufudonafexerlzylb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501208/normal_6023c3a7263d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_600e6cf79f6aa.pdfIn PDF document text
    • https://cdn.sqhk.co/xakatikakizi/TFjagQS/zombie_hunter_d-_day_mod_apk_android_1.pdfIn PDF document text
    • http://chebsvet.ru/pukabopikelhzv01.pdfIn PDF document text
    • https://vulemozebo.weebly.com/uploads/1/3/4/6/134693025/83288.pdfIn PDF document text
    • https://cdn.sqhk.co/nalomuxe/bghialz/mejodolanebido.pdfIn PDF document text
    • https://pefikasulanak.weebly.com/uploads/1/3/4/3/134350375/vofol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375356/normal_5ff47aa8849ae.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379970/normal_5fc97d5f506fa.pdfIn PDF document text
    • https://sakobapo.weebly.com/uploads/1/3/3/9/133999770/razeninigumo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vudasuluwiviwaj.rf.gd/bible_study_guide_from_genesis_to_revelation.pdfIn PDF document text
    • http://finabupotokuko.epizy.com/42495636918.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_off0000c139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC139 5476 bytes
SHA-256: e734e2c9af08a40a5c7406fdfba53dd5d5bb10a22f29033bd97cdfd6766ce99b
font_01_sfnt_off0000d3e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E6 9868 bytes
SHA-256: 84e8b732912f7590a9e2afc014ca7c28c11dd8e03d26e6d693bac19b4fd9faad