Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4d831088c9d3aac…

MALICIOUS

PDF

69.1 KB Created: 2021-02-24 22:42:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 150fdf6e85be1ad2de8a2b49ee977c9f SHA-1: cb7106fac2ad505761b041dce823b7f24826b301 SHA-256: f4d831088c9d3aaceb6f86afc163956359d6ec98a97d56d3280defccea24fa58
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wix?keyword=father+john+misty+pure+comedy+download PDF link annotation
    • http://apparentlyopt.com/750736714262khln.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418180/normal_5fd242d49788d.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/how_to_use_an_8_qt_instant_pot.pdfIn PDF document text
    • http://glasshookahcatering.com/bawexotujogexetudolej47a2.pdfIn PDF document text
    • http://leopolds.space/pronunciation_guide_documentaryrq9pj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501364/normal_5fddc287beca5.pdfIn PDF document text
    • http://prazdnikprosto.ru/58988273330yebp4.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.website/bully_lite_v3_mod_apk1l2wj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412173/normal_6000aabe19244.pdfIn PDF document text
    • http://presalon.xyz/107993710699lt19.pdfIn PDF document text
    • http://igclienteam.com/dejakusuxafajugafaseto9uoj7.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/mecanica_vectorial_para_ingenieros_estatica_10_edicion_beer_espaol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387706/normal_5ff8003071fe9.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/what_is_development_biology_embryonic_and_fetal.pdfIn PDF document text
    • http://winoorama.fun/96732320154aubnr.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/diary_of_a_wimpy_kid_show_cast.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://webidiwotew.epizy.com/discussion_part_of_research_report.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/xefebisupokapujanono.pdfIn PDF document text
    • http://dotedofapi.rf.gd/ios_11._3_for_iphone_5s.pdfIn PDF document text
    • http://nibijebe.epizy.com/bangla_movie_choto_bou_hdvd9._com.pdfIn PDF document text
    • http://bokakemipik.epizy.com/best_small_cars_2018_consumer_reports.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_off0000d0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D1 5540 bytes
SHA-256: 7b881552cd2faa06febd681f70ab104060e58e9099aa18c87dea7b5d0b3dd806
font_01_sfnt_off0000e396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE396 10428 bytes
SHA-256: 6732507e4c6af98793194681d99d148b8acf0172e6a68962e08631df42b2e353