Malicious PDF — malware analysis report

Static analysis result for SHA-256 625f289d34c60aad…

MALICIOUS

PDF

433.1 KB Created: 2021-01-24 04:16:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 587b2bfb948839b30cbbe54cb2f64ff3 SHA-1: 200d5a9c4c362fe5886934d0c6126eba661bb9a6 SHA-256: 625f289d34c60aad552894c3bd7e582beba26e8a2a40afe79c5a85f4b4a363f0
96 Risk Score

Malware Insights

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

This PDF document contains an embedded URL that redirects to a search result page, likely as a lure to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9352

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wb?keyword=cool%20black%20guy%20hairstyles PDF link annotation
    • https://fukidupedogof.weebly.com/uploads/1/3/2/8/132814182/db7b1755d200.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377403/normal_5fd260f4b0719.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/Bicpsie/dimuberemipapidun.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/jgfjiij/rocky_horror_picture_show_music_list.pdfIn PDF document text
    • https://site-1167951.mozfiles.com/files/1167951/gofanagizojipukigorotugif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454665/normal_600bd10aab698.pdfIn PDF document text
    • https://site-1177569.mozfiles.com/files/1177569/72308705122.pdfIn PDF document text
    • https://mefewenitili.weebly.com/uploads/1/3/1/3/131379946/kanimesog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_5fea0b049da6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474191/normal_600ca1d838691.pdfIn PDF document text
    • https://site-1172855.mozfiles.com/files/1172855/45193095272.pdfIn PDF document text
    • https://site-1177129.mozfiles.com/files/1177129/werovodiwadu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409123/normal_5ff6618ad84f1.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/jjjhhgx/pisirufefivaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497359/normal_5fe656c11c2f7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455380/normal_60078c6f19d92.pdfIn PDF document text
    • https://cdn.sqhk.co/rotuzuwibi/avaqxYr/xalemewuzabe.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/aVRnWvs/mods_for_minecraft_pe_ipad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444877/normal_5fcce0808d4c3.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_off00067e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E75 5272 bytes
SHA-256: e8ee8a88aeca7d71964b84c616dfa6bf7d6ca2dbb4228729f72ae1f7bdf11b4f
font_01_sfnt_off00069060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69060 10540 bytes
SHA-256: bd87a3859f5aa695f36a298766b6ed4860a97dd0a0e730e86b848e0dd81c68ec

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