Malicious PDF — malware analysis report

Static analysis result for SHA-256 db3233521964adff…

MALICIOUS

PDF

87.2 KB Created: 2021-05-04 12:05:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: d0a4c7f9c58da3c08f290682a7a762da SHA-1: 7930f53872e1e3a69ca078903005af16ef5aa24c SHA-256: db3233521964adff9fba249d859914b7cc1cb18658419e1b604bbc109bc8c6cd
166 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many of which point to disposable domains and appear to be part of a link farm designed to redirect users. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests a common tactic where users are prompted to download an archive that requires a password, often to bypass security scanning. While no scripts were explicitly extracted, the presence of numerous external URIs and the overall structure strongly suggest this PDF is designed to redirect users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/strik?utm_term=divina+commedia+inferno+canto+3+testo+e+parafrasi PDF link annotation
    • http://paksorond.xyz/advanced_systems_automation_limited_annual_report99e4j.pdfIn PDF document text
    • http://comp-arenda.site/you_before_me8k411.pdfIn PDF document text
    • http://idealica-italy.site/overflow_line_break_jspdfb3utf.pdfIn PDF document text
    • http://nepoxiduvilej.scienceontheweb.net/kinuvisuvosiraxenaji.pdfIn PDF document text
    • http://bedating.online/ghostbusters_full_movie_2016_putlockn4hk2.pdfIn PDF document text
    • https://relowuforobelo.weebly.com/uploads/1/3/4/5/134528439/ca8d8e9a675.pdfIn PDF document text
    • http://joy-todays.online/vba_code_to_send_email_from_excel_without_outlookei4ch.pdfIn PDF document text
    • https://fobaxidoxeg.weebly.com/uploads/1/3/4/3/134356333/44f3a745a41c48.pdfIn PDF document text
    • https://doxemikawapuki.weebly.com/uploads/1/3/4/3/134314999/gikiwewof.pdfIn PDF document text
    • http://govnosiakxws.online/71850908043bam2p.pdfIn PDF document text
    • http://24goodstore.site/explain_survival_of_the_fittest_natural_selectionw3l6n.pdfIn PDF document text
    • http://particulier-societegenerale.xyz/lederumevetalonale8nkeg.pdfIn PDF document text
    • http://my-favshoph.online/diablo_3_reaper_of_soulsgfwc8.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/mefubokadakoxalazirom.pdfIn PDF document text
    • http://biniwitovo.mywebcommunity.org/facebook_ads_manager_guide.pdfIn PDF document text
    • http://medilawibume.scienceontheweb.net/fenidoxakobomox.pdfIn PDF document text
    • https://zanebereraba.weebly.com/uploads/1/3/4/4/134472179/c3e95.pdfIn PDF document text
    • https://xazewipiw.weebly.com/uploads/1/3/4/7/134717961/01747fec471ed2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zokaramizixa.atwebpages.com/cbse_class_11_biology_ncert_book_download.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/bhrashtachar_par_nibandh.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_off0001146e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1146E 5492 bytes
SHA-256: 1b1702c8a54c08ae8f36c347cad577b315ccd36757da4e5e98f0c416c4a13c02
font_01_sfnt_off0001271b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1271B 11800 bytes
SHA-256: f6595611b83fd14e97c0709b7d0ad6605e2e125b847a981e040c9c26f6d99387

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