Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fcfbccec4fdc489…

MALICIOUS

PDF

199.7 KB Created: 2021-04-04 23:24:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 970a28b10d433e086111963be2350086 SHA-1: 7e0b184254abfafd76032bef7a68fed43191402f SHA-256: 6fcfbccec4fdc4898e8693972e7308ec1a17a011b5d4b819412485b66284e78e
96 Risk Score

Malware Insights

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

The sample is a malicious PDF identified by ClamAV and an ML classifier, containing an embedded URI pointing to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'New testament books written by paul'. The presence of external URIs indicates an attempt to redirect the user to a malicious website, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9791

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://dugedepap.ru/strik?utm_term=new+testament+books+written+by+paul PDF link annotation
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/linudaberot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495999/normal_6040a5ae86b29.pdfIn PDF document text
    • https://sevenunoxesu.weebly.com/uploads/1/3/4/3/134341304/2678454fcf2643.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447258/normal_6039ee0fbde83.pdfIn PDF document text
    • https://nukusuruv.weebly.com/uploads/1/3/1/8/131857442/zuzupabop.pdfIn PDF document text
    • https://dotanivim.weebly.com/uploads/1/3/4/7/134705276/dopogipovirekuvu.pdfIn PDF document text
    • https://poxosuliw.weebly.com/uploads/1/3/1/3/131383655/duvegikaji.pdfIn PDF document text
    • https://wudavatu.weebly.com/uploads/1/3/4/4/134457778/dalonotawej_tojuvabodarasoz_laredo_bajaxab.pdfIn PDF document text
    • https://bixugukov.weebly.com/uploads/1/3/2/6/132680808/juzaxigujuvenil.pdfIn PDF document text
    • https://bugedosase.weebly.com/uploads/1/3/2/7/132712019/zudefe_lomosowobixa.pdfIn PDF document text
    • https://vopudupanite.weebly.com/uploads/1/3/4/3/134317176/1238b5.pdfIn PDF document text
    • http://help-bluebadgecustomer.com/the_arrl_ham_radio_license_manualyh69p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478415/normal_60124f6c77880.pdfIn PDF document text
    • https://kavosimodo.weebly.com/uploads/1/3/4/9/134901779/gironanew.pdfIn PDF document text
    • https://ginimowawogob.weebly.com/uploads/1/3/4/7/134753870/8485670.pdfIn PDF document text
    • https://bogizironafek.weebly.com/uploads/1/3/1/4/131406395/6544779.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476147/normal_5fea3cbcd421d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459177/normal_60252d89b0846.pdfIn PDF document text
    • https://ludajajuxo.weebly.com/uploads/1/3/5/2/135293479/f63f8f56242044.pdfIn PDF document text
    • http://sushibara.net/perfume_genius_no_shape_zipygvdg.pdfIn PDF document text
    • http://presentinsta.online/jomiwenafexafosisa1ajs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472788/normal_602d5a605dd7c.pdfIn PDF document text
    • https://fuxilidunud.weebly.com/uploads/1/3/5/3/135314653/dexilikori.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_off0002c4ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4BA 5332 bytes
SHA-256: 3452495f20d59bddd46d5b7ba5404d3cf68506a53977c26d553ec10ecc49714a
font_01_sfnt_off0002d6e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6E2 19008 bytes
SHA-256: c300b44f6a72883058381b373a96623152a83129936f6b10853d6e8bbfda8811

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