Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3abf7a8eeaa7dbe…

MALICIOUS

PDF

73.2 KB Created: 2021-02-14 06:01:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 02e0f203597c0fd0c7abd10a52dce629 SHA-1: 34f5f4701898d1e0fdb5416c630c143b7139f53e SHA-256: e3abf7a8eeaa7dbe9aee9db024e182df1f657a292073016ad9f57775c9cf1077
126 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan variant. It contains numerous external URLs, many hosted on disposable domains, suggesting a link farm or redirection scheme. The document body, though heavily obfuscated, appears to reference 'Guide Michelin Corse 2018', likely a lure to disguise the malicious intent. The presence of external URIs and the overall structure strongly indicate an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wb?keyword=guide%20michelin%20corse%202018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4498348/normal_601eb9e254b2b.pdfIn PDF document text
    • https://cdn.sqhk.co/papedajapej/hijgQ9C/what_is_the_meaning_of_christianity_religion.pdfIn PDF document text
    • http://vilopeg.xyz/7438568442084bn7.pdfIn PDF document text
    • https://fujerituzaxu.weebly.com/uploads/1/3/0/7/130775231/9600573.pdfIn PDF document text
    • http://onlyforyou.space/redupekolimezemogi80u1y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456699/normal_60224d226d2af.pdfIn PDF document text
    • http://dutov.org/49582338180yrto7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406820/normal_5fcd8e246f76b.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/ihfdjgk/light_up_mask_walmart.pdfIn PDF document text
    • https://jugotazotezolut.weebly.com/uploads/1/3/5/9/135973864/dbb117a3b.pdfIn PDF document text
    • https://fujemolubese.weebly.com/uploads/1/3/4/0/134012375/9fac42e365173.pdfIn PDF document text
    • https://gagodizuw.weebly.com/uploads/1/3/5/9/135965264/271525.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/bugetBM/rerimafo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD613 5520 bytes
SHA-256: a3768fe9e769907e7cc5cff0d9b7211086fe049abb05527c5b9b7ee515b516b0
font_01_sfnt_off0000e8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B4 15204 bytes
SHA-256: 189f7f27618d891dd83ae6ac628b9028af3fe890862f6ed5e0adad1a430d68e7

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