Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e893af2027a8b78…

MALICIOUS

PDF

76.0 KB Created: 2021-03-06 16:48:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c4835ca5975e1c8fb0e1b90b2b62bc2d SHA-1: 7aee56bdc662f68180364aa670b2def93f4c7a26 SHA-256: 3e893af2027a8b78ee68611ecf87b6d931e72d09d715dbdcfb695cb0847e586a
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to search results or content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=how+does+gerald%2527s+game+end PDF link annotation
    • http://bakanoloxekiwub.iblogger.org/fakomer.pdfIn PDF document text
    • http://bufo.online/the_social_construction_of_whatcsdn3.pdfIn PDF document text
    • https://cdn.sqhk.co/mewoveri/c2AOXoc/warlord_games_us_airborne.pdfIn PDF document text
    • http://lnstagram-blue-ticks.com/74888860184nto0.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwumixe/AOhj8ig/fosujewavaruwax.pdfIn PDF document text
    • http://setofexperience.site/8450098623g85k6.pdfIn PDF document text
    • http://ropiwijubasa.22web.org/11393703151.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/lerezazo/35823027535.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/chevrolet_captiva_2012_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/fractions_worksheets_grade_2_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/98442079995.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/538c3910-b2ba-40c5-b07b-6bb8742f089d/vapukukujifuwirelizog.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/guardian_university_guide_business_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be8cd993-e471-4c23-bd76-15e3d5d59076/smiths_diamond_sharpening_stone_instructions.pdfIn PDF document text
    • http://rawopewudoj.rf.gd/57957546890.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/44206020218.pdfIn PDF document text
    • http://rolaxaja.rf.gd/5048992010.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03b5d748-a395-47f7-903e-8e04f72dc520/94368508842.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/ma_public_administration_ignou_books.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e997dd1-6349-450e-9121-71471dd2bcb3/wirovuwapumixulapuruw.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_off0000eb1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1E 5232 bytes
SHA-256: de2b9cc16b5f9bb5147c137181242d4d44553b41944ef678d0dd6c0c8d2b9902
font_01_sfnt_off0000fce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE7 11208 bytes
SHA-256: 3769fe31e24d483dcf9256f2e7fe88e79e2fe7ce0fac9414b0d63b3f027bdeaf

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