Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f4a1b3f0c29054…

MALICIOUS

PDF

69.7 KB Created: 2021-02-27 12:24:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 32564268bdb8c0c06b6dd28921da8d96 SHA-1: 8da2d81070742658bb883db846f05db5506d2e3c SHA-256: a6f4a1b3f0c29054969c9f08ede455d494acbe9d64114539cf3be9aa47628a4a
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://nipisod.ru/wix?keyword=harbor+breeze+platinum+portes+remote+manual PDF link annotation
    • http://organic100.fun/animal_crossing_gamecube_cheats2yv2e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470405/normal_5ff1546f57111.pdfIn PDF document text
    • https://cdn.sqhk.co/bavozazav/aAtwNu2/4017305687.pdfIn PDF document text
    • http://digitaltoolsfor.xyz/bedazzled_imdb_parents_guidew32i3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368500/normal_5fcbaa53b6dee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485580/normal_60017c79448aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447487/normal_5fd726518e8b9.pdfIn PDF document text
    • https://cdn.sqhk.co/vifamepupib/MnX9ohd/nodufe.pdfIn PDF document text
    • http://manovina.mypressonline.com/what_is_contemporary_philippines_arts.pdfIn PDF document text
    • http://alania365.ru/goginuvawojaamgr5.pdfIn PDF document text
    • https://cdn.sqhk.co/xixewebirike/l0vthbL/spin_blade_metal_fight_burst_2_gameplay.pdfIn PDF document text
    • http://tijukilebag.getenjoyment.net/poseemos_2_tipos_de_comunicacin_verbal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lulojoduvos.epizy.com/refraction_of_light_experiment_lab_report.pdfIn PDF document text
    • http://sevuvev.epizy.com/punctuating_dialogue_worksheet_grade_8.pdfIn PDF document text
    • http://nekexixi.epizy.com/android_textview_bold_tag.pdfIn PDF document text
    • http://joriboka.epizy.com/rubidigukelototajejopivu.pdfIn PDF document text
    • http://labinugekifuv.rf.gd/work_hard_play_hard_song_pagalworld.pdfIn PDF document text
    • http://xupewosupegosax.epizy.com/bulbulay_drama_in_3gp.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_off0000d496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD496 5116 bytes
SHA-256: d83734727ccdb2813733f1f052fef645b6752df5ac109b55ff812215b07ac3e4
font_01_sfnt_off0000e5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E6 10504 bytes
SHA-256: 817e0789e7f7bbfc453d67603c34404c260dae880a317245d6a14d1fd40b6334