Malicious PDF — malware analysis report

Static analysis result for SHA-256 47cdf8aeccf4b7fb…

MALICIOUS

PDF

78.1 KB Created: 2021-02-18 04:41:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 4085d87e884859de1f9c7c35a843b3a8 SHA-1: 08dccbf3b59f234a2f3cc7ce518d9e9e4add2202 SHA-256: 47cdf8aeccf4b7fbb365465b4b1c3e97783870a560c2f574a58d0b832ff58603
156 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially harmful websites.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/strik?utm_term=how+to+use+ezdrummer+2+in+logic+pro+x PDF link annotation
    • https://cdn.sqhk.co/vodadavubex/jg43Whc/belkin_trueclear_transparent_screen_protector.pdfIn PDF document text
    • https://tijesefufejeje.weebly.com/uploads/1/3/4/8/134858706/ximavom_gabopebiko.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/zigef-zinulefijajir-jonexo-xuzozufonumufe.pdfIn PDF document text
    • https://cdn.sqhk.co/babonisu/bCIijhc/oof_piano_website.pdfIn PDF document text
    • http://rerubin.space/77903352947qkx54.pdfIn PDF document text
    • https://galofufe.weebly.com/uploads/1/3/1/3/131384583/naboradavi_zupabuzevu_jovatuwati.pdfIn PDF document text
    • https://setupazaz.weebly.com/uploads/1/3/4/7/134772318/jotafe.pdfIn PDF document text
    • https://befomunuduti.weebly.com/uploads/1/3/1/1/131164266/9825646.pdfIn PDF document text
    • https://cdn.sqhk.co/fatepotax/3dhcjbY/solemigebagamatuzinorod.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
    • https://s3.amazonaws.com/muvojugejoxip/12935004051.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/82455784715.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/6967380223.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/sulefurak.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/openssl_certificate_pem_format.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE795 5368 bytes
SHA-256: 3c04361a36672208556bf4f61cb6054a471f8a0bcc07af5ec5469af56b5dfa75
font_01_sfnt_off0000f9e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E0 10496 bytes
SHA-256: c4c8a83e0f7e203e54d5c00b095a87144a182bc6b74e02be3979e0d9a0651a5b
font_02_sfnt_off00011d94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D94 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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