Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3b71bb95d6df9ee…

MALICIOUS

PDF

79.7 KB Created: 2020-11-13 20:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: db6a49f0a43024b2b22c32aa70a315c5 SHA-1: 97e7f7ce2ba9b815a7ebb1228ddd5765385ec00c SHA-256: e3b71bb95d6df9ee0691b1578f1906ec12c3ca4899fd36d6ad11935b93a8c16c
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/123?utm_term=intermediate+arabic+for+dummies+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388052/normal_5faeb0ce6d853.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/6eb39f09-097b-4746-b61a-9c348c863e3a/84712390388.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/isomorphism_theorems.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/scrap_metal_64052.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/488bf7aa-a23f-4e22-a557-70c78cd8dcd0/weather_channel.com_hurricane_dorian.pdfIn PDF document text
    • https://s3.amazonaws.com/kakef/what_is_the_ionic_formula_for_iron_iii_oxide.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/63133799891.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17de82ef-a6d7-4406-b579-eb7c869d2ff0/lozidu.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/72101188470.pdfIn PDF document text
    • https://s3.amazonaws.com/saziwijaxodav/bolingbrook_il_police_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/statistical_analysis_of_geological_data.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e29e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29E 3312 bytes
SHA-256: 38f8835debb2439de69b7bd23467eb41c875066155b7d9e5805567f7c5089ab4
font_01_sfnt_off0000ee74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE74 5468 bytes
SHA-256: 4e6d4c417b37c6a61031e2961bdddf7a7fc9d92125a278a0b1f55d951ee4351e
font_02_sfnt_off000100ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100CA 1240 bytes
SHA-256: 84fc5ac20f1203893b8ee2220d2ead489111cee687e0e794cacb0bf792f76d9e
font_03_sfnt_off000107d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107D6 12500 bytes
SHA-256: d947e486c8a27ffbfa7195e5112f87fd0e5af839b43b0ab4885c61825b99695b