Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30a9d13b0406724…

MALICIOUS

PDF

76.5 KB Created: 2020-12-09 05:31:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f97983905effe124487706cb5dd5a93c SHA-1: c256705d684228b04a222c3dc811427b0fe93412 SHA-256: e30a9d13b040672471aa7ff1d0982ccaf3a8e98581514d0990a717deb45ebcc4
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 suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to 'pickleball lesson plans'.

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://trafftec.ru/123?utm_term=pickleball+lesson+plans+for+high+school PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368777/normal_5fc4d9ef9ead6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372682/normal_5f9628d179ce2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377905/normal_5f8e7319b952d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410448/normal_5fac3ea918383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460255/normal_5fa3a59a52dc5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kuboki/spanish_ar_verbs_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/saxemavuziropasimeba.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dac460f2895dc1e79d89/t/5fc17b5d9d79364840c5b2d8/1606515552839/tasujumojawof.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/51107129694.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/22542795691.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/bumpy_ride_song_in_320_kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/basifebotezome.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/ionic_and_metallic_bonding_workbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa11b026-adbf-4357-8000-41c77c922344/gillette_fusion_manual_blades_x_10.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc710dc161f8068becc65be/t/5fcb78039cf56e0e8b11dbac/1607170053105/jazz_super_mega_internet_offer.pdfIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/pulmonary_idiopathic_fibrosis_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd6b7ecc-846b-4284-820b-c406ded9db48/glencoe_algebra_2_chapter_5_worksheet_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ddaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDAA 5192 bytes
SHA-256: b29770b4879048683307a334eaed4a7f4eafca08fb78a35d72ea348f796bb9a2
font_01_sfnt_off0000ef2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF2E 11484 bytes
SHA-256: 8c6e07abb4702603700699f0971d503131b1d97ca427a904d1a545d1466b6ac3
font_02_sfnt_off00011631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11631 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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