Malicious PDF — malware analysis report

Static analysis result for SHA-256 71edad529a340eb1…

MALICIOUS

PDF

69.2 KB Created: 2020-11-18 11:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 8e8a9b24ee51c4ef426a8728b11b78e8 SHA-1: 5cedd116be5d066fd077117977a8f8ff1e5e7695 SHA-256: 71edad529a340eb123c36825c66e188f056809effb11fa53a52a0620fe4f67b8
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://traffset.ru/123?utm_term=poem+girl+from+nantucket', which is likely used to deliver a payload or conduct phishing. The document body, though heavily obfuscated, contains text that appears to be a lure related to a poem, aligning with a phishing or social engineering attack pattern.

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=poem+girl+from+nantucket PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421476/normal_5f97b004496cb.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/nowokil/wisefutegogoxoxadejidod.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/gama_de_colores_de_cabello.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/las_cartas_del_diablo_a_su_sobrino.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/stars_align_anime_canceled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62d4b171-7976-4a8c-84d3-af7607a984aa/kidiremimesep.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/27218680659.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/cawdrey_s_table_alphabeticall.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/13414695916.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/transformation_of_functions_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/mazugezijap/jerunipepipimedobozobozi.pdfIn PDF document text
    • https://s3.amazonaws.com/mujesogi/equality_of_opportunity_in_education.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/wawifuse.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_off0000c561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC561 2900 bytes
SHA-256: b3dfb2f2c41da7350fc3755141d2fd0ea5796bb125df25fec831093623ff73df
font_01_sfnt_off0000cfa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA4 5088 bytes
SHA-256: a6d476f540430de2c2f067011e81dfd88f11f7bf21debadd6d8c997384a31e5a
font_02_sfnt_off0000e0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E6 10848 bytes
SHA-256: cb1c4ae513a8b4fcf48fdfacdfdcd20849ddc6cdb7e2e498e55e1c1680835531