Malicious PDF — malware analysis report

Static analysis result for SHA-256 d06d9c217f1e5534…

MALICIOUS

PDF

70.8 KB Created: 2021-02-10 20:28:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0f42593fc4c3f0b54ff0e4def8ff6e09 SHA-1: 3ca9dbb8b7a15362b9318e12be0f079d4b41461c SHA-256: d06d9c217f1e553431f702329ba521b46fa18c7f2b74385ab03139a845d6783a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a machine learning model and ClamAV, as malicious and phishing-related. It contains numerous embedded URLs pointing to disposable hosting, likely intended to redirect users to malicious content. The document body, though heavily obfuscated, contains references to media that could be used as a lure.

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://leonvi.ru/aws?utm_term=badri+ki+dulhania+movie+hd+video PDF link annotation
    • https://cdn.sqhk.co/bugininaxi/0x3ihji/96503511134.pdfIn PDF document text
    • https://cdn.sqhk.co/xogatijixe/TqidNOW/replacing_license_plates_in_california.pdfIn PDF document text
    • https://cdn.sqhk.co/luwonowuwig/0aQgiLA/fajawixo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488570/normal_5fc59eda4f397.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/4pgijiy/jetonijisemaxifixunonu.pdfIn PDF document text
    • http://tomogorman.com/fisco_agenda_2018_mexicoqn65e.pdfIn PDF document text
    • https://cdn.sqhk.co/botuvawezej/jajaAgc/stack_it_up_liam_payne_meaning.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418368/normal_5fd11a98d4eba.pdfIn PDF document text
    • http://lovelid.xyz/argumentation_and_critical_decisionj8tqk.pdfIn PDF document text
    • http://nowatora.22web.org/3671179008.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/4hdhitB/becoming_a_werewolf_dream_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/gm2Osha/bazepawifiga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://xatowumo.epizy.com/narotugaru.pdfIn PDF document text
    • https://s3.amazonaws.com/difigomisosak/vajowoga.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/kobawaputasegadefulotimek.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA4 4864 bytes
SHA-256: 539b2024b69e550985ea7ee0ef0ea8bb80bd1e007a0200fccc43a497f3751cf7
font_01_sfnt_off0000dbed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBED 10572 bytes
SHA-256: bcac201ad33178889891d3ff5e0a5e03744c61064920cc8801045ce2ce5c3b59
font_02_sfnt_off0001003a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1003A 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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