Malicious PDF — malware analysis report

Static analysis result for SHA-256 289fe01a22e15bea…

MALICIOUS

PDF

72.0 KB Created: 2021-03-20 15:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: b8c92b22a56a35a19266293b40d811b4 SHA-1: ac462ea1cdc1e5b59be5b5eb7fcde00c90d1fd4a SHA-256: 289fe01a22e15bea305f9448dae7bfab967fa2cd3787fca1fb4bf40d08dde0a6
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one specifically pointing to 'ponafet.ru'. ClamAV detection and ML classification strongly indicate maliciousness. The document body, though partially garbled, suggests a product lure, likely intended to trick users into clicking the malicious link for a fake transaction or download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/strik?utm_term=flight+case+traktor+s4+mk2 PDF link annotation
    • http://natur-bio.space/xixexudiwasomamuvintd7x6.pdfIn PDF document text
    • http://pizetagudagunox.22web.org/carolina_panthers_2019_uniform_schedule.pdfIn PDF document text
    • http://zathkatow.xyz/44342325636qsxgd.pdfIn PDF document text
    • http://kosodidaxelo.22web.org/liguneriga.pdfIn PDF document text
    • http://redita.fun/ancient_greek_olympics_worksheets01oei.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425214/normal_5ffcf7ff9eb0a.pdfIn PDF document text
    • http://susasami.22web.org/princess_coloring_pages_printable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444852/normal_5fea1f9f09f74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368989/normal_60271b94498eb.pdfIn PDF document text
    • http://fb-pageunderreview.com/xerugelupuzowademivekedezhzk3x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482849/normal_603e1b7b24be0.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/bd9949f5-8fbf-465a-a5c2-8cb13992bd6b/65571459056.pdfIn PDF document text
    • http://bezopiwuzalobit.rf.gd/amandeep_singh_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/66568588198.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/fakanesogetanuwogokozeg.pdfIn PDF document text
    • http://sizojike.rf.gd/solid_liquid_gas_worksheet_grade_2.pdfIn PDF document text
    • http://damadikaj.epizy.com/ldc_answer_key_12_august_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3fe6d03-9c98-4c37-8197-c0062f1974b1/how_to_clean_filter_on_bissell_proheat_pet.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/xoxigerelivizedodomegav.pdfIn PDF document text
    • https://s3.amazonaws.com/sajezife/meboji.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/13397260574.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c27e2915-22dc-42a3-b595-4a31e178d651/the_life_of_frederick_douglass_chapter_7_summary.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_off0000dbb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB7 5452 bytes
SHA-256: 0f2ef2f98caa967d7bb100ca13fbb0e3127c048f9819b784955cd10b9356548f
font_01_sfnt_off0000ee25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE25 10788 bytes
SHA-256: 76cf6aad467e75d369a4cb18d7d3f382661809ac6ec45f28042921bad1111720

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