Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcaa9eccb064bdf…

MALICIOUS

PDF

81.7 KB Created: 2021-03-27 19:14:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: aa15a360a474d358abab1767ecd9a264 SHA-1: b5c72a2d370237a5a60d9acef695f7a045d0fc17 SHA-256: 0dcaa9eccb064bdff14ef925f92e567e181b211b67803b8b357d55f75a84a764
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/strik?utm_term=what+does+maladjustment+mean+in+economics PDF link annotation
    • http://akfb.online/gekaketiboxfb29a.pdfIn PDF document text
    • http://kifejuja.medianewsonline.com/budget_2020_highlights_bankersadda.pdfIn PDF document text
    • https://joripipebepif.weebly.com/uploads/1/3/4/1/134131856/175281.pdfIn PDF document text
    • http://topstop.site/cisco_cp-8841-k9_manualah9ye.pdfIn PDF document text
    • http://centerbluebadge.com/rigizikatuxufejipe3pf07.pdfIn PDF document text
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdfIn PDF document text
    • http://vinograd.io/nokiguwomadesivmltcd.pdfIn PDF document text
    • http://pixujuxe.mypressonline.com/biological_classification_neet_mcq_download.pdfIn PDF document text
    • http://emirofficialzm.com/14346075849252xi.pdfIn PDF document text
    • https://wewiruvikaju.weebly.com/uploads/1/3/0/7/130775929/2c71c0c8b4c9.pdfIn PDF document text
    • https://modotetizifoxi.weebly.com/uploads/1/3/1/6/131637555/korazuresexovod.pdfIn PDF document text
    • http://uscreditmonitoring.info/se_liga_nessa_historia_do_brasil_livro51zim.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/nupebunolununazubi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sopavame.onlinewebshop.net/basic_concepts_of_accounting.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/eco_fashion_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/bopudoma.pdfIn PDF document text
    • https://7a9095e9-4ba3-4ff7-9406-a75d0382ce8a.filesusr.com/ugd/db93e9_fc74ee26b03d473684d8e48f2311d9c9.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jevelel/can_you_trade_penny_stocks_on_td_ameritrade.pdfIn PDF document text
    • https://6ba7316d-b84b-4ccb-a32a-103c856d4013.filesusr.com/ugd/91f37e_0e301c1d1cca4e7cb8af3b63d385174c.pdf?index=trueIn PDF document text
    • http://fadezanunadafik.myartsonline.com/39239515375.pdfIn PDF document text
    • https://3794eb9c-cc8b-492c-aecc-44533f76aaa6.filesusr.com/ugd/1ee69b_3d88687ea9de485d8c316918783959da.pdf?index=trueIn PDF document text
    • https://6e678f60-abc6-404c-883a-cd1729fdffee.filesusr.com/ugd/e4291f_4072572eb3f344ddb0ed0b2fce0f2486.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bisazabe/54332476931.pdfIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/remeze.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_off0000fe59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE59 5172 bytes
SHA-256: 29901564a03dc91c5d383da1aadde5f859c975a7973d8576ec627dcbc221e38e
font_01_sfnt_off00010fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FE0 11800 bytes
SHA-256: c266ac4867af61d3d5d85c8247a94b70650e7fdee3811697015ca0838de08180

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