Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4e38e3bacc8189…

MALICIOUS

PDF

75.5 KB Created: 2021-03-16 18:14:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: b958a87218741b7b0fd96dc7b9b72ad8 SHA-1: 8a61294864f3fc1b735c99af99dcf465ae10cae0 SHA-256: ed4e38e3bacc8189d69dafd3dd56dfb62fd37fc9e07f57968f7a50c8f67e96a2
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URLs and link farm heuristic suggest the document is designed to redirect users to potentially harmful websites, likely for phishing or malware distribution. The presence of numerous links on disposable hosting further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/wix?keyword=tachiyomi+apk+iphone PDF link annotation
    • http://egosikenclub.com/abap_development_for_sap_s_4_hanal4jgb.pdfIn PDF document text
    • http://lukisasore.mywebcommunity.org/39457181207.pdfIn PDF document text
    • http://puveputado.sportsontheweb.net/dungeons_and_dragons_5e_zombie.pdfIn PDF document text
    • http://christinaanddavid2019.com/62308995849361am.pdfIn PDF document text
    • https://cdn.sqhk.co/pamezuravuno/00ijijb/superheroes_coloring_book.pdfIn PDF document text
    • http://mandarins.space/cards_against_humanity_online_examplesfvr2z.pdfIn PDF document text
    • https://cdn.sqhk.co/nejajevafode/1web0de/39464021621.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/jcanoid/52747179180.pdfIn PDF document text
    • http://dudisukogonox.iblogger.org/rorimizaputowur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zebinagapovu.epizy.com/72227792480.pdfIn PDF document text
    • http://wadoromutisagar.myartsonline.com/83083678095.pdfIn PDF document text
    • http://jujewejono.epizy.com/madizasupedutarodokek.pdfIn PDF document text
    • https://3c8197b3-f999-4f29-b3da-fbdfea3dbf34.filesusr.com/ugd/0047a4_3c7cdf17b1814297bbd79d0abbd66c9f.pdf?index=trueIn PDF document text
    • http://kojajopi.epizy.com/50606109608.pdfIn PDF document text
    • https://d0fd53c2-66a5-49f7-a942-a4bfc50892a3.filesusr.com/ugd/11baf9_061ad9caf70846b19f6001cde75caf25.pdf?index=trueIn PDF document text
    • https://bad3f395-1638-4667-b349-d6f934eeab49.filesusr.com/ugd/ed2d23_228e6e7f8ab9489e8b113c652c5a2ab2.pdf?index=trueIn PDF document text
    • http://taximupije.epizy.com/el_conde_de_montecristo_de_alexandre_dumas.pdfIn PDF document text
    • http://gefimosikalet.rf.gd/applied_informatics_and_research_incorporated.pdfIn PDF document text
    • http://gigosaz.epizy.com/71362320974.pdfIn PDF document text
    • https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_2a2586dbcc1d4548b92e624d03eea72b.pdf?index=trueIn 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_off0000ec5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5C 4980 bytes
SHA-256: 2ed78e270948dcdd560adad2bf1747ffa3e44d1756de962f89d85c6bc0718332
font_01_sfnt_off0000fd34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD34 10496 bytes
SHA-256: 0e595bc3aab56403a96bd1b553d52c10ac5da582f004d9773c746b3901f375e0

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