Malicious PDF — malware analysis report

Static analysis result for SHA-256 f78348e67ce525ab…

MALICIOUS

PDF

71.7 KB Created: 2021-02-25 19:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 42e005f262a1c94706e4dd452bb2d6cc SHA-1: 833cce23e4f5183d68e2e881d9eb030a0ea82e60 SHA-256: f78348e67ce525ab99a520338f5aea6cd4db8c79405d446a4703be8bc9d4d0bd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/award?keyword=it%2527s+kind+of+a+funny+story+full+movie+watch+online PDF link annotation
    • http://tefitagesev.mypressonline.com/mamefobolizogatogud.pdfIn PDF document text
    • http://itali-big.space/lepitezojirexuyqf2d.pdfIn PDF document text
    • https://mojenosude.weebly.com/uploads/1/3/1/3/131382274/5115737.pdfIn PDF document text
    • https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/tamovekakosisaw.pdfIn PDF document text
    • http://testvvd.xyz/88050852298ujr27.pdfIn PDF document text
    • http://newuwedeza.mypressonline.com/gigoref.pdfIn PDF document text
    • https://bemesamug.weebly.com/uploads/1/3/4/7/134722017/566d1047c5ce2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479235/normal_5fe6ba39288bf.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/17364531328.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/flash_player_chrome_support_ending.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sonasekofuxix.rf.gd/lisa_simpson_sax_solo_sheet_music.pdfIn PDF document text
    • http://lanutovomet.epizy.com/58305851118.pdfIn PDF document text
    • http://jatomije.rf.gd/simple_math_iq_test_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/jimosanefo.pdfIn PDF document text
    • http://purumurik.epizy.com/el_fisiologo_bestiario_medieval.pdfIn PDF document text
    • http://wulibazosuxib.onlinewebshop.net/favorelalokejur.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_off0000dc24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC24 5552 bytes
SHA-256: 55e7dbef3a3357ee66812d3d3891826d276464b55fdace4586b997d1e1d668c8
font_01_sfnt_off0000eefc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFC 10244 bytes
SHA-256: dd4480b98bb9fa2ba84f8942fdb19ab43eea716b76830248ff3c187ea6da123d