Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c82ff38f5275c02…

MALICIOUS

PDF

75.9 KB Created: 2021-03-15 17:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 794113201a665964fa88d975c57228c1 SHA-1: 5525edcef95b4ea501ebc5e67baf8678554725b5 SHA-256: 1c82ff38f5275c025d321b971cef67368dcf1eba5c756d28ac86b3e2cf36c89d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL and document body referencing product parts suggest a phishing or scam lure. No scripts were extracted, limiting the analysis of specific execution techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dafemum.ru/strik?utm_term=nordictrack+exp+1000+x+parts
    • https://cdn.sqhk.co/xuwifoviwalo/h4R3a2B/alienware_laptop_17_specs.pdf
    • http://salet.store/25735759524lrskm.pdf
    • https://cdn.sqhk.co/ragojagef/iXiidy2/smurfs_village_wikipedia.pdf
    • https://static.s123-cdn-static.com/uploads/4404529/normal_6004b963c6dae.pdf
    • https://cdn.sqhk.co/sologavabo/e9hdigx/15886544821.pdf
    • http://jadebey-x.com/53358437167g23qy.pdf
    • https://cdn.sqhk.co/disegivoji/jiPNLr1/lodewalujebunumivu.pdf
    • http://all-casino.xyz/what_does_the_color_orange_mean_in_chinaqi7ez.pdf
    • https://static.s123-cdn-static.com/uploads/4473938/normal_5ff7a347d3151.pdf
    • https://cdn.sqhk.co/wotezowedo/0OihH9N/top_5_woodworking_projects_that_sell.pdf
    • http://dodajavux.scienceontheweb.net/discovering_computers_2016_chapter_1_answers.pdf
    • http://bexixibeguben.sportsontheweb.net/46956818675.pdf
    • https://static.s123-cdn-static.com/uploads/4497346/normal_5ff0463fd5d24.pdf
    • https://cdn.sqhk.co/gidenateg/hFggT2t/wevajobuzovozekum.pdf
    • https://cdn-cms.f-static.net/uploads/4425910/normal_601e10090906b.pdf
    • https://cdn.sqhk.co/bopelara/Vcgdihc/2687912683.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6c75a358-d1d5-4c12-be73-acf02c3849f6/what_is_proper_table_manners.pdf
    • https://uploads.strikinglycdn.com/files/4794cb8c-fdb4-4995-b5e4-5f990ee86d1f/guzuxujefiso.pdf
    • http://nizowozutagele.atwebpages.com/2964712173.pdf
    • https://uploads.strikinglycdn.com/files/dc0d00ec-9f67-45c1-b1e6-365608a6c2de/tizorefolotebesusijujepo.pdf
    • https://uploads.strikinglycdn.com/files/b17cc0cd-82d7-4826-8234-516cd4212680/jisolagamawojona.pdf
    • https://uploads.strikinglycdn.com/files/61bd9502-aa25-4cbe-8a6b-25f211acf2fa/24573038933.pdf
    • http://vipuzala.myartsonline.com/zuzevisumazorixote.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb8d.bin
0b48c56738d84707652a411ae3dbba34ce86632d3aaed987c67457c162418ab9
pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 5332 bytes
font_01_sfnt_off0000fdc7.bin
0d84fb6217e001fca869f469686181def1e8c553349f33e6b1c493473b86bf34
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC7 10860 bytes