Malicious PDF — malware analysis report

Static analysis result for SHA-256 065a4f7443e5b4b1…

MALICIOUS

PDF

74.4 KB Created: 2021-03-09 13:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: bc4dd18c22b9324190da5b2fc113280c SHA-1: 14c509107aef44907c6b3cf8896e0b0420bc33fc SHA-256: 065a4f7443e5b4b1cda345a23b16a6efe64b117d65992810ee1ffb24280caa70
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://dugedepap.ru/aws?utm_term=turbochef+ngo+f4+monitor PDF link annotation
    • http://vorakumezaxof.mygamesonline.org/93548126777.pdfIn PDF document text
    • http://malalij.iblogger.org/genetic_disorders_worksheet.pdfIn PDF document text
    • http://itdiscounts.info/7_laws_of_yogapr10g.pdfIn PDF document text
    • http://siwivelijutore.medianewsonline.com/40148749903.pdfIn PDF document text
    • http://kigowamukidiba.iblogger.org/kebonizositaweweveze.pdfIn PDF document text
    • http://small-italy.space/recommendation_letter_for_dialysis_nursessl3fg.pdfIn PDF document text
    • http://siondez.ru/23918437714lmoky.pdfIn PDF document text
    • http://itclick.pro/subtracting_fractions_worksheets_with_answersi19zc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zimemotom.rf.gd/attahiyat_surah_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/91940879145.pdfIn PDF document text
    • http://kasarokoxakuke.epizy.com/titixinapukotapoved.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/diwotidorojupuv.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/arcane_mage_pvp_guide_3._3_5.pdfIn PDF document text
    • http://wijuromosumeko.rf.gd/bts_anpanman_video.pdfIn PDF document text
    • http://tosogaxaf.rf.gd/10614541311.pdfIn PDF document text
    • http://wuzegez.epizy.com/zexiretovakezurubava.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/politimoxiweb.pdfIn PDF document text
    • http://pozaberu.rf.gd/decrease_brightness_app_android.pdfIn PDF document text
    • http://fabawuluguwoke.epizy.com/how_to_start_a_bakery_on_instagram.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_off0000e65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE65E 5052 bytes
SHA-256: 232e008e99f89fc2c054bcef9dc6ac18049e2acd7507e5be7051660865bbae70
font_01_sfnt_off0000f774.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF774 11076 bytes
SHA-256: 8d09c5bf026c18b6879a2467f1b86c0c88d03571146d058eac7451999d61a9d3

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