Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d24141efc7fc777…

MALICIOUS

PDF

90.0 KB Created: 2021-03-17 10:35:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 06306d3f781a940faf40bc66eca07828 SHA-1: 5b1d608e6d18f87e61586a4515fc5723b76ec1d1 SHA-256: 7d24141efc7fc777ea59b221424b6d846100556391036f4629a9781fd1d22837
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, suggesting a phishing or credential harvesting attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing lures disguised as job-related documents.

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://resalured.ru/award?keyword=job+relieving+letter+format+sample+pdf PDF link annotation
    • http://tiriruno.sportsontheweb.net/how_to_write_aim_of_report.pdfIn PDF document text
    • http://nikibolerobika.getenjoyment.net/balewugisibolomen.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/midupazasokaxamudigamux.pdfIn PDF document text
    • http://pogadai.xyz/anker_20000_pd_manualgji6m.pdfIn PDF document text
    • http://xtina.online/20978065201i9y0g.pdfIn PDF document text
    • http://bigpleasure.ru/vampire_diaries_damon_salvatore_blanketrlw17.pdfIn PDF document text
    • http://astropsychology.site/27170522263951mn.pdfIn PDF document text
    • http://raisinsapp.pro/how_do_you_turn_on_a_cobra_walkie_talkiei112m.pdfIn PDF document text
    • http://prizyivnik.ru/lab_report_abstract_example_physicswex1n.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/71272128907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f7e95eb-2fcd-403e-80b1-68eee2a28497/29828857119.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/loketomapepidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f941b086-e523-4095-875d-d29ed3ae4b2c/best_python_learning_courses.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/gta_vice_city_aptoide_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fec3eec-b100-4f3d-b88d-25fb1308d89f/kujofiterarajubogob.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/trois_2_pandora_box_full_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1758388a-3e1b-47f9-b4ab-0c9e0f5c6aca/14886842284.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/acute_gastritis_nice_guidelines.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_off0001209f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1209F 5548 bytes
SHA-256: e31b57a8c6fe28033fc863a90bdcc5b639ef9a95ef1028b92b41ba32ddb50a34
font_01_sfnt_off0001336a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1336A 11524 bytes
SHA-256: 7a65de49248dcbeb964b5ac1b05f6c417c41f84d53214351ff7cc92a68795b8d

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