Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f24f73c1a3017d6…

MALICIOUS

PDF

73.6 KB Created: 2021-02-12 23:28:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0188fcc8c9303d4d424c19c459ae2551 SHA-1: 6e373495081a634ce050f30c561940f86bbbd025 SHA-256: 3f24f73c1a3017d6e552dc6ab0ae7a191d9e0b9befff775b224430fb3289e3cc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jottigo.ru/wix?keyword=bound+by+temptation+pdf+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/xeposetuge/NgePjbD/the_walking_dead_no_man_s_land_forum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449973/normal_5fd85dd17a047.pdfIn PDF document text
    • http://vesibigezedenu.iblogger.org/luridoxokexiwas.pdfIn PDF document text
    • https://cdn.sqhk.co/nadipozow/aC9hbSO/30085778561.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/NsLjdL4/bunarabojej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474471/normal_600d98cd4c5eb.pdfIn PDF document text
    • https://cdn.sqhk.co/niwonosorude/jnfAhdY/84812478733.pdfIn PDF document text
    • https://cdn.sqhk.co/mujejadalale/Gzyheha/crusades_history_in_urdu.pdfIn PDF document text
    • https://cdn.sqhk.co/wefopijupe/geiaFid/50361834761.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367004/normal_5ff0c556d0cfb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451941/normal_600bcb8e7c032.pdfIn PDF document text
    • http://dovulup.iblogger.org/ghost_recon_breakpoint_open_beta_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369173/normal_60122787bb778.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuronixo.rf.gd/endocarditis_guidelines_uk.pdfIn PDF document text
    • http://tegufomaliduki.epizy.com/14484558037.pdfIn PDF document text
    • http://divejekojo.epizy.com/bhojpuri_bhakti_audio_dj_song.pdfIn PDF document text
    • http://benifolagalat.epizy.com/fumusukerenirev.pdfIn PDF document text
    • http://mavafakubew.epizy.com/aprendizaje_significativo.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_off0000e0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D8 5596 bytes
SHA-256: e7e317e5eed4a8bfbc4bb7a19cd071294b5b9c62baa1d7a253f2a59776f40fcb
font_01_sfnt_off0000f394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF394 10528 bytes
SHA-256: 1b7b7ef83909ba354d593877f2800f464d6880ea17cbee68039e9da76184cbc0