Malicious PDF — malware analysis report

Static analysis result for SHA-256 8883345295bfb20e…

MALICIOUS

PDF

81.8 KB Created: 2021-02-21 06:03:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: f721d275b26a7d6558f9664e2382275f SHA-1: e3b7491c37c711456a1deca90d52e32c5dcbeafe SHA-256: 8883345295bfb20ef9d0f6b190a3ca1bbb51bbd0eb824484fc00c5f8d8881782
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, appears to contain keywords related to search queries, reinforcing the lure tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=thor+vs+zeus+mythology PDF link annotation
    • http://fiwadewemizoti.iblogger.org/novecento_baricco_libro.pdfIn PDF document text
    • http://vorusobowa.66ghz.com/bollyshare_october_movie.pdfIn PDF document text
    • http://ellmax-site.xyz/pebosikakijadoxehp7id.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472764/normal_601a02caafd85.pdfIn PDF document text
    • https://cdn.sqhk.co/jogeguzotire/bBYTKjb/lefuvisowazizasapozoxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387244/normal_5fe2bdc955e8c.pdfIn PDF document text
    • http://gulibej.22web.org/64760099793.pdfIn PDF document text
    • http://urolog.xyz/rae_sremmurd_sativa_free_mp3_downloant57v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450039/normal_5fe51de62bb7d.pdfIn PDF document text
    • https://cdn.sqhk.co/xedaberetaj/gjihjOC/mine_survival_hacked_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/Cyhd9zq/navumixurikozuve.pdfIn PDF document text
    • http://kozizukexepuf.22web.org/vidmate_old_version_app_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451363/normal_5ffa29bbd3efd.pdfIn PDF document text
    • https://cdn.sqhk.co/zotofoza/dMNjgcL/gomawajazebigis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382186/normal_60107c97c1215.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vulebodifoguvar.epizy.com/loboforiwabo.pdfIn PDF document text
    • http://pajusokato.epizy.com/wimugasorakoromuvixix.pdfIn PDF document text
    • http://badokelo.rf.gd/zimaruvozemanugezigexu.pdfIn PDF document text
    • http://puvuvijafu.rf.gd/sakako.pdfIn PDF document text
    • http://mikunedase.epizy.com/accrued_expenses_definition_balance_sheet.pdfIn PDF document text
    • http://dopafedoxafedar.rf.gd/barcode_scanner_software_for_android_free.pdfIn PDF document text
    • http://sobegomogi.rf.gd/geometric_design_guide_for_canadian_roads_2016.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_off000105ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105EA 5048 bytes
SHA-256: 91445e18ca7f4636825d3a134c6a6dcac35fb92dbb566067f6a5410fa66d5038
font_01_sfnt_off00011707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11707 10252 bytes
SHA-256: a57fb8b0a5c6fadb8eec9529314251311c4f0665c0efed62baf072774464869b

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