Malicious PDF — malware analysis report

Static analysis result for SHA-256 d464238676dafc2b…

MALICIOUS

PDF

76.1 KB Created: 2021-03-20 08:02:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76229a486024b45313e358d011113b95 SHA-1: e225c1089d367cc24101ec0c58391d21d3b0cdd5 SHA-256: d464238676dafc2b719b2ea4e540398b2ac623e646a8e88ff47a6c752fcc519f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to search results, further supporting a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/wix?keyword=essential+cell+biology+pdf+free
    • https://cdn-cms.f-static.net/uploads/4497079/normal_603519cfd0c80.pdf
    • https://static.s123-cdn-static.com/uploads/4488339/normal_5feb19529cb98.pdf
    • http://shopee24.site/18270530284y63kp.pdf
    • http://lnstagramverifiedsbadgeforms.com/dapawuve1skp.pdf
    • http://losamaresufalu.22web.org/23268577301.pdf
    • https://cdn-cms.f-static.net/uploads/4471467/normal_603b281e9e40b.pdf
    • http://ketotreno.buzz/charlie_s_angels_soundtrack_albumvx50q.pdf
    • http://uscreditmonitoring.info/subway_surf_apk_para_hilesi_indirgrl50.pdf
    • http://lozhobelir.space/6642612224135b28.pdf
    • https://cdn-cms.f-static.net/uploads/4374021/normal_6050041a203fb.pdf
    • https://cdn-cms.f-static.net/uploads/4390663/normal_603d5f6377f38.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fefekug.rf.gd/68222389958.pdf
    • http://rezofegiwuw.rf.gd/62353627733.pdf
    • http://zisilorelane.rf.gd/tibove.pdf
    • http://sewobixisizazo.rf.gd/xikeb.pdf
    • https://3d1db4d0-c196-4dd3-8d5c-bb108cafbd43.filesusr.com/ugd/479e38_e2c42b8fd75948248c3a2e6e01d531f6.pdf?index=true
    • https://cb70cc59-2297-49c3-b7e2-2ac7e26e28d4.filesusr.com/ugd/4479ed_e1ff147e1c5e478cab7c40d651d4a0a3.pdf?index=true
    • http://ribitotuv.epizy.com/11374944201.pdf
    • http://zigemevopowab.epizy.com/kirekakupo.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_off0000ea6b.bin
ed573e8ed74c15a4cec0b3ac6d1b72301c11f218481eddf49c487747390fca09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA6B 5520 bytes
font_01_sfnt_off0000fd4b.bin
df3c2d24f5e5d1ec20f9829a6c5d9d426988d943550f35db872e94cf36c99541		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4B 11024 bytes

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