Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed607d573d04fe97…

MALICIOUS

PDF

79.4 KB Created: 2021-02-28 15:26:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: fdb7993e6952d6ef3a4449caf942a6a3 SHA-1: 26fb2e5336ea0ee9f0c4540cf8117dc09b78137b SHA-256: ed607d573d04fe97fe43fdadff0c7a71425811d7959cc2417f8f6ae128af81de
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable hosting and configured as a link farm, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful websites.

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://kuzutuzo.ru/strik?utm_term=the+ascension+mysteries PDF link annotation
    • https://sebazolilerop.weebly.com/uploads/1/3/0/8/130874482/893956.pdfIn PDF document text
    • https://dipabuxirakilat.weebly.com/uploads/1/3/1/0/131071076/zigivir.pdfIn PDF document text
    • http://zanovekolasin.mywebcommunity.org/dujuso.pdfIn PDF document text
    • https://cdn.sqhk.co/sunomedude/tcnieBY/36389866412.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/what_words_describe_a_rainforest.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/gary_vaynerchuk_is_he_married.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/zQgchdl/marine_weather_forecast_freeport_ny.pdfIn PDF document text
    • https://lapolepep.weebly.com/uploads/1/3/1/4/131406498/709f6b.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/eqs35P4/mma_fighting_games_mod_apk.pdfIn PDF document text
    • http://metoxegid.mygamesonline.org/98825142674.pdfIn PDF document text
    • https://nisaxiguxizi.weebly.com/uploads/1/3/5/3/135306566/bikekilawutimit.pdfIn PDF document text
    • http://kugewezebuvigiw.mygamesonline.org/summer_waves_16ft_elite_frame_pool_reviews.pdfIn PDF document text
    • https://nulijuvak.weebly.com/uploads/1/3/3/9/133986618/1331807.pdfIn PDF document text
    • http://rexevivejegox.scienceontheweb.net/inocydia_ios_8.3_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://weparaxopulo.atwebpages.com/los_crimenes_de_la_calle_morgue_libro.pdfIn PDF document text
    • http://sudexixurijaxoz.atwebpages.com/92709999244.pdfIn PDF document text
    • http://sulijugofogim.onlinewebshop.net/65508963404.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/zaxepotok.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC65 4844 bytes
SHA-256: 7287ef27381de3a4232633cb329474bf563bb51d81459766a8d363824026181f
font_01_sfnt_off0000fca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA5 11376 bytes
SHA-256: 609fd2993a6aabff02a9efd242e8d5992eb53bd87cba36bd4a8354b16bb54983
font_02_sfnt_off000122a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122A7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.