Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d267943546a5ff4…

MALICIOUS

PDF

79.1 KB Created: 2021-05-25 04:48:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 00182fd115e83f36c65b71b3fda94d6d SHA-1: 63cf12a39320c77fd0317623c9677c77172651bc SHA-256: 2d267943546a5ff441cea867af21c88c0b6c00a095e97fa4dcc7eaeba276ce6e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that directs the user to a suspicious URL, disguised as a search result. This URL is likely intended to host a malicious payload or phishing content. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or malware distribution campaign.

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://xezojetit.ru/wb?keyword=how%20to%20open%20sylvania%20portable%20dvd%20player PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368492/normal_60400a401485c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379053/normal_5fcba6fc62ba9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475219/normal_5fd2e59fc880a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416139/normal_6019d70c39328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444378/normal_60085d2859e30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366389/normal_5fe3d54bc22c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4498801/normal_60530730e74ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450719/normal_60240b9667c62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417669/normal_5feffc823c779.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411700/normal_6052816b206fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501360/normal_601501afa38d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388156/normal_5fdf63e4dc962.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/tezofuretejom/john_rawls_theory_of_justice_summary_class_11.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/xelavesetidujibodefolo.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/wrong_side_of_heaven_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/6838491383.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/brother_hl-5450dn_printer_driver_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/staff_appraisal_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/how_many_pounds_do_you_lose_with_gastric_sleeve.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/sensus_water_meter_error_codes.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_off0000f839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF839 5308 bytes
SHA-256: 650f9d35149d231ea45a5460edbb4b263bf3bf9dad1e5e32fa982ecbd6b07a45
font_01_sfnt_off00010a65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A65 10684 bytes
SHA-256: f11e5ccd4919b01526eaad2d982196bdc16fcb2cec3e10cc102dd98829694c03

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