Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a14f0ae3482cc6c…

MALICIOUS

PDF

87.3 KB Created: 2021-03-18 00:57:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 98664fe45e6b037dea6b278830449602 SHA-1: 9ef7cfa8b15137e59a0c3b13d1c64084217489c4 SHA-256: 7a14f0ae3482cc6ca1cec861236de8a74cb7b03755401823e77230f582aa8767
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a domain associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. The document body, though heavily obfuscated, contains keywords that may be used as lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=fermi+level+pinning PDF link annotation
    • http://tigafik.mygamesonline.org/41460970900.pdfIn PDF document text
    • http://raisinshq.club/nalewebugutetabuwqlpw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416506/normal_6018dad708b8f.pdfIn PDF document text
    • http://tizelobira.22web.org/mejemul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418362/normal_603970fc11415.pdfIn PDF document text
    • http://tanuwoxomasosog.22web.org/proforma_invoice_template_psd.pdfIn PDF document text
    • http://lexaxak.mywebcommunity.org/49906286905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368474/normal_6042df202de96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481510/normal_600fc450b8579.pdfIn PDF document text
    • http://thecaffeinatedstudent.com/burafategavofefalikulxdkyh.pdfIn PDF document text
    • http://gufutaca6.xyz/wazelanapovakagufmklld.pdfIn PDF document text
    • http://kuziwikokawiz.iblogger.org/32745041437.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jalijoruki.atwebpages.com/ruwegonesolupudopefugeror.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/bailando_english_version_video.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/working_principle_of_centre_tapped_transformer.pdfIn PDF document text
    • https://s3.amazonaws.com/migivewuwe/video_er_windows_8._1.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/housing_reference_letter_template.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/ladejotenagifi.pdfIn PDF document text
    • https://s3.amazonaws.com/xomudufe/ugly_love_movie_123movies.pdfIn PDF document text
    • http://vedumojaje.epizy.com/garolite_sheet_black.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/bluestacks_free_for_pc_64_bit.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_off00011460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11460 4768 bytes
SHA-256: db94080b6fe01ed81d2a421057e6ef526debcc51ee9ce3371b4b680a8811faeb
font_01_sfnt_off0001248f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1248F 12488 bytes
SHA-256: df32a1e7d31f994b97066a5507ddeb0d3c26563564b5201e873abf86b069efa0

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