Malicious PDF — malware analysis report

Static analysis result for SHA-256 3362abfa1f51210c…

MALICIOUS

PDF

121.8 KB Created: 2021-03-21 21:26:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 82e3b0b86eafe1c3684fadb514c72225 SHA-1: 65656561090b0088a68642154ea1e6f3517c1b8c SHA-256: 3362abfa1f51210cf450f5790c09d6e683e4e635188b286c20e211f09c1be009
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with several pointing to known malicious redirector infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were extracted, the PDF structure itself is weaponized to redirect users to potentially harmful sites.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=lawn+boy+10734+parts+manual In PDF document text
    • https://busuguzokiw.weebly.com/uploads/1/3/1/4/131406797/4232938.pdfIn PDF document text
    • http://biomaniix.website/siwiziniwutoq6ygq.pdfIn PDF document text
    • http://azorocheat1.xyz/30722892163igmpr.pdfIn PDF document text
    • http://fimewot.xyz/watopagefipuvawiruzupavurq8035.pdfIn PDF document text
    • http://shop-kid-toys.online/nipeketupa0ui1z.pdfIn PDF document text
    • http://goromeo.club/interesting_writing_prompts_for_3rd_gradeq1cy9.pdfIn PDF document text
    • https://fumuzuwuwuwupu.weebly.com/uploads/1/3/0/9/130969925/nomamadokusibexe.pdfIn PDF document text
    • http://pubggaming.online/aniseed_balls_nutritional_information7yets.pdfIn PDF document text
    • https://vowexigap.weebly.com/uploads/1/3/1/6/131636774/teligemoruzop.pdfIn PDF document text
    • http://trynutra.shop/childrens_stories_to_read_aloudbmos3.pdfIn PDF document text
    • http://24goodstore.site/xijazipil3r9rr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dafumuxitupav/22889255422.pdfIn PDF document text
    • http://fefomopopokelo.epizy.com/galajukazelogife.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/vnsgu_b._com_degree_certificate_form_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/the_little_sas_book_a_primer_second_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/faith_tattoo_template.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/lvmh_investor_relations_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/fereb.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/pipaxibe.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/69891147190.pdfIn PDF document text
    • http://jizozekawa.epizy.com/ethical_fashion_guide_oxfam.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_off0000de01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE01 63604 bytes
SHA-256: 1948ca4da6d83d4ad8cec76396fb2b9c3b9d95deec7bf26f1902c32045899b43
font_01_sfnt_off00019cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19CFD 5768 bytes
SHA-256: 5da6a8212ea45aba06f0253389b81f83c62ad793945cd505ac85dcc91589ce4d
font_02_sfnt_off0001b0b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B0B0 11408 bytes
SHA-256: f8fa2649565dd93b16489c30122cccc740d29d6fa9ee2743a9fe2ff2aeba2920

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