Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e13696cd07b6948…

MALICIOUS

PDF

78.7 KB Created: 2021-03-17 05:30:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 4a5f6b8507045cca0b09945e4616cf30 SHA-1: e0670315f5b72b7a640b4616537ae577f4a17c41 SHA-256: 5e13696cd07b6948d773604e276b24693546ce5d1691730233cffbe9e00a04ac
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics as an external URI and flagged by a machine learning classifier and ClamAV as malicious. The document body, though heavily obfuscated, contains text related to soccer practice, suggesting a social engineering lure. The presence of an external URI and the malicious classification strongly indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://botokaw.ru/strik?utm_term=soccer+practice+for+8+year+olds PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447914/normal_5fdc89b491f4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383565/normal_5fcbdc013916f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478946/normal_60159d37afeaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413978/normal_5fcc98d5abbf9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474471/normal_6010fec137c3b.pdfIn PDF document text
    • http://lipejilun.iblogger.org/marketing_activation_plan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_603cf986c804c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486534/normal_5fe3c8747e351.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/suxugipipolazog/onn_bluetooth_headphones_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/640a0224-4205-4258-9cf5-329e4c40b2b0/how_do_i_fix_my_miele_vacuum_bag_holder.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/gpat_2009_question_paper_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/chicago_manual_of_style_footnotes_journal_article.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/51203247591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d27f65f-e80e-4d48-8f87-8dde2b080b31/descargar_diccionario_larousse_espaol_gratis_para_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ac8097-efbe-4aa2-ba01-8fe57f453b63/wizurepuxebilogoren.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7666639-e29e-4fa5-a9df-486110ae09b5/mubila.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/vufitozewa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0171528-7f30-412b-b15a-4be04f0589ae/asus_crosshair_iv_formula_ethernet_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/wind_in_the_willows_play_script.pdfIn PDF document text
    • http://tunivepusage.epizy.com/john_deere_455_diesel_tractor_parts.pdfIn PDF document text
    • http://vapanuwivodoj.epizy.com/lamedusurigurulagim.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/cardboard_sheet_images.pdfIn PDF document text
    • https://s3.amazonaws.com/siwixomudit/podinosazoxud.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_off0000f523.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF523 5548 bytes
SHA-256: 225e7a807bed63fd6b45063d570b4c196b1ec0f2a55275492379afa84a32d07f
font_01_sfnt_off0001081c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1081C 10992 bytes
SHA-256: 5526c78330fe00e02b3a35102da9d0eaec9fd0621d3bc509841c7612b248374d

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