Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf588eff0ce92c1…

MALICIOUS

PDF

76.1 KB Created: 2021-01-21 11:54:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ab1fd14d68991cc77ad25b303e29687d SHA-1: 54fa212e254397381fa49f7e03c5deac3476fefe SHA-256: edf588eff0ce92c1a4823e1f14004b628b0bcdbce8fcccc0b2d769cebdfa9533
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/123?utm_term=ethno+political+movements PDF link annotation
    • https://cdn.sqhk.co/gisatajofo/Kje9yVp/guess_the_movie_cheats_level_21.pdfIn PDF document text
    • http://korezafegedim.22web.org/82120949758.pdfIn PDF document text
    • https://cdn.sqhk.co/datimemovuko/pnN0hiN/tedaxejezovuvonet.pdfIn PDF document text
    • https://cdn.sqhk.co/tememukafosu/uifIgjJ/brave_frontier_tier_list_tek.pdfIn PDF document text
    • https://cdn.sqhk.co/jutusaxibu/aijYb8a/small_woodworking_shop_layout_plans.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ziwejozaz.epizy.com/form_submit_button_value_not_sent.pdfIn PDF document text
    • http://roduteberilexel.epizy.com/76978897432.pdfIn PDF document text
    • http://ramapenutizawa.epizy.com/abramowitz_and_stegun_free.pdfIn PDF document text
    • http://telawusufolij.epizy.com/favavowakagisegosezuru.pdfIn PDF document text
    • http://kejufunekopal.epizy.com/kevogozijixavu.pdfIn PDF document text
    • http://raxusitusumulag.rf.gd/busy_busy_song_ringtone_free.pdfIn PDF document text
    • http://sidabimesalib.epizy.com/best_caller_id_app_for_android_phones.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/gitorikume.pdfIn PDF document text
    • http://monulaw.epizy.com/71877855877.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/talujemomovesokifovitep.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_off0000e793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE793 5096 bytes
SHA-256: 78fa292a3a63f0cf2ed009a89c2ca4c075c18b4b56dd658935460cfd572c4ed5
font_01_sfnt_off0000f8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8CD 13392 bytes
SHA-256: 5ca9e3f8a695c2ebe3d71ef1fec9ea4207c9cf4c6a48d8b6c3cc201469c33563