Malicious PDF — malware analysis report

Static analysis result for SHA-256 00fe5695f00ca0e4…

MALICIOUS

PDF

77.6 KB Created: 2021-05-25 08:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: ec6056214ca5c548e518f5152e8d1dae SHA-1: 0614ef0165199c2153251e9ef18c183b34d8d033 SHA-256: 00fe5695f00ca0e4a29221750ab14ce523424b2996eebe5e7517697df5823b02
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for link farms and phishing. One prominent URL, 'https://resalured.ru/strik?utm_term=serial+para+easeus+data+recovery+wizard+trial', suggests a lure related to software trials. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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://resalured.ru/strik?utm_term=serial+para+easeus+data+recovery+wizard+trial PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485172/normal_60064c9b40d75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391317/normal_5feffb8e41476.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421341/normal_5fc61418ecd7d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393193/normal_5fde11a548e1b.pdfIn PDF document text
    • https://velelamoju.weebly.com/uploads/1/3/1/4/131438442/2d82ee2.pdfIn PDF document text
    • https://xesolisozewil.weebly.com/uploads/1/3/1/3/131379689/jewipuvekifemedexaro.pdfIn PDF document text
    • https://vezijukifi.weebly.com/uploads/1/3/3/9/133997169/3495152.pdfIn PDF document text
    • https://xuxijoma.weebly.com/uploads/1/3/3/9/133997678/xivuvi.pdfIn PDF document text
    • https://kajabukege.weebly.com/uploads/1/3/1/3/131379037/kivofupekikodagiga.pdfIn PDF document text
    • https://risenezapaf.weebly.com/uploads/1/3/4/4/134481661/dfce866b1e107.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_6039d95261b77.pdfIn PDF document text
    • https://duziduwavi.weebly.com/uploads/1/3/1/0/131070207/32782aef77d83a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388620/normal_603fd2db09a9a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401703/normal_5fe3d8364f74f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382958/normal_60299b9b87aac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4da95767-ca99-4195-bce3-b8a40072f734/how_to_combine_like_terms_on_opposite_sides.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/24976664914.pdfIn PDF document text
    • https://s3.amazonaws.com/kabisebax/livijefanopanixuruso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7f301df-0d08-4d70-a08e-ef730f552e49/que_hago_si_mi_media_naranja_es_toronja_jesus_amaya.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/fender_mustang_4_amp_manual.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16A 5472 bytes
SHA-256: 8eb0e5c30fcc1177951c6fe77e864e9fc0658d91c6bedbdf91183dab2c00d889
font_01_sfnt_off00010437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10437 10736 bytes
SHA-256: aafd77e8cbed7f674aac0cd65b9d56c72f539bcede82272bd27ba82f302a193f

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