Malicious PDF — malware analysis report

Static analysis result for SHA-256 009ce4d6bbd92193…

MALICIOUS

PDF

69.8 KB Created: 2021-02-25 00:21:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b0a0d6577bf1d6847325f3db32a45c4 SHA-1: ddad6f6866daaa6bc480817a7bd27a9ba24f2ddc SHA-256: 009ce4d6bbd92193fe2fc3d20b6a3564c564bbb7cf815d3b167edc152e00aeb6
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs pointing to potentially malicious domains, suggesting it is used to redirect users to phishing or malware download sites. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm strategy, common in phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/123?utm_term=take+five+results+ny
    • http://mbfsopg.com/conformance_report_iosac2bs2.pdf
    • http://tublitalia.fun/86160064234e65pl.pdf
    • http://bejugofixo.22web.org/magnetic_current_book.pdf
    • http://abanca-electronica.com/64354894216zqgzr.pdf
    • http://betmoy57.com/ableton_live_arpeggiator_midiy9tbo.pdf
    • http://citruss.space/how_to_properly_load_test_a_batterywb0cf.pdf
    • http://freds.space/yu_gi_oh_gx_torrentw67zd.pdf
    • http://topfrag.rip/32806871129gx38c.pdf
    • http://potenciy.xyz/rajojuguzilew69jbr.pdf
    • http://20970907.net/the_sum_to_infinity_of_a_geometric_series_is_60m39hz.pdf
    • http://trysol.xyz/graduate_school_resume_template_freefy76r.pdf
    • http://copyright-supporthelp.com/gegefuys15e.pdf
    • http://specrazreshenie.com/lasibidadowegozuputold4phl.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lesizemub.epizy.com/vexozipi.pdf
    • http://simipibenafar.epizy.com/27375096580.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_off0000d3c2.bin
ad53a8f16e3e7d9467d221dd5d75ed3b57a5b7794981477ed29cfed8bfd56eb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3C2 4936 bytes
font_01_sfnt_off0000e4b5.bin
1dd9bd9078a5296713fa90757a0259486a16fdeb02ce5f01a3110fa1ffa3de86		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE4B5 11000 bytes

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