Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14824c23dece9b9…

MALICIOUS

PDF

83.9 KB Created: 2021-02-21 15:58:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 5c19e9b80c5e74e0499e25a171095caf SHA-1: f198916d0086f97998ccec8288461cfe8c24e7c3 SHA-256: c14824c23dece9b9d034aeefd25d270634e2e3191bcb1d63f5136c1a483482c0
96 Risk Score

Malware Insights

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

The PDF file was flagged 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 'Animal Farm' quotes, aiming to trick the user into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/strik?utm_term=animal+farm+snowball+quotes+with+page+numbers PDF link annotation
    • https://cdn.sqhk.co/nupasoxure/tghQcge/94613459825.pdfIn PDF document text
    • http://kikovetademu.22web.org/xekokaxuzowaloxunum.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/s1iixA7/codemasters_f1_2021_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/luginuwi/1cgeMjh/42382418212.pdfIn PDF document text
    • https://cdn.sqhk.co/raninogozo/hgijgji/paludavekatev.pdfIn PDF document text
    • https://cdn.sqhk.co/zanotunuzi/irA62id/20521534910.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/rTjhGgi/nezipel.pdfIn PDF document text
    • http://vizezokope.iblogger.org/29875777418.pdfIn PDF document text
    • https://cdn.sqhk.co/kusasuzona/dgiZvZv/25186950896.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zerejibixupav/pedulogalikiko.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/kumovomiralujuwimuvawoli.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/lab_8_ideal_gas_law_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/290270218.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/43053365786.pdfIn PDF document text
    • http://dimexibagumaza.epizy.com/xupojuwukupizovenoluxidow.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/balancing_equations_worksheet_10-_2.pdfIn PDF document text
    • https://s3.amazonaws.com/mokuwanibof/business_budget_sheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fdfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFE 5544 bytes
SHA-256: eebd925829516a7dafcbe50feba7a311784ff83d8fa4c557bc7ee00bcd81005c
font_01_sfnt_off000110b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B0 10488 bytes
SHA-256: 9c8fee86cd68817857cf7a5c357b3858d0e8411d8a0964b382092be860b42380
font_02_sfnt_off00013463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13463 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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