Malicious PDF — malware analysis report

Static analysis result for SHA-256 598deea393a1f672…

MALICIOUS

PDF

79.6 KB Created: 2021-03-19 02:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 8a714367276d0716630626561d397a94 SHA-1: d7a684435b7315a1e6ffd6535d94d5ef92ccfaec SHA-256: 598deea393a1f6724ca098b2fc4cd0be6997be8b7aaeec18aeddd116a4ac9693
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, appears to contain keywords related to product searches, suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=kitchen+aid+stove+electric PDF link annotation
    • https://pilonalamajavex.weebly.com/uploads/1/3/1/1/131164122/degalezitubobifezolo.pdfIn PDF document text
    • http://giocodigital.space/beginning_programming_with_java_for_dummies_5th_editionv8eef.pdfIn PDF document text
    • http://center-san.ru/73928767115gntvm.pdfIn PDF document text
    • http://samozanyat.info/logitech_z-2300_spare_partso20pr.pdfIn PDF document text
    • http://intekzafast.online/methode_de_recherche_de_panne_electrique2lkm4.pdfIn PDF document text
    • https://kukasoxijosip.weebly.com/uploads/1/3/4/4/134431535/5996279.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473410/normal_6018853e2cfd4.pdfIn PDF document text
    • http://trenolgia.buzz/book_of_spells_free_downloadxzyb5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368750/normal_5fe1067b86ddc.pdfIn PDF document text
    • http://esparks.ru/cornell_notes_template_for_microsoft_wordhgrji.pdfIn PDF document text
    • https://jazigibebegada.weebly.com/uploads/1/3/1/6/131606339/4351482.pdfIn PDF document text
    • https://sazizilas.weebly.com/uploads/1/3/0/8/130874530/5949631.pdfIn PDF document text
    • https://rinulokol.weebly.com/uploads/1/3/4/8/134868038/b1ca2a39afb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420917/normal_60081d3133c29.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puxedasepuk.epizy.com/what_is_a_declaration_of_custodian_of_records.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/wenivosumidal.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/87517511072.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/94693943407.pdfIn PDF document text
    • http://muvusibose.rf.gd/45317180819.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/aerodynamics_in_cars_seminar_report.pdfIn PDF document text
    • http://betodufugesom.rf.gd/zufumesepafirolaj.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/jarixaxazaxumozodojobapek.pdfIn PDF document text
    • http://diwedixeku.rf.gd/xujukawifit.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_off0000fbc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC4 5056 bytes
SHA-256: 31796854f43c2d4b045cd2b6d5ed55beb8152cd7e62fe41ae7a60dbd50f6afa0
font_01_sfnt_off00010cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFC 10256 bytes
SHA-256: 342325288f3856d13262d376c98414c7e8c6ce35ad0bda6bcf04e826c55128e1

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