Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60eff74569595f9…

MALICIOUS

PDF

67.7 KB Created: 2020-11-28 21:17:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 15ffc4173620d332093b01d03ab87537 SHA-1: 10e8a12ccec16f3980b8636a502eee159a64959b SHA-256: f60eff74569595f90dcd718c079ea5c406dd60b572b5d52e0f1aa52a301bba32
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous external links, with a significant number pointing to Weebly-hosted PDFs, suggesting a link farm or phishing infrastructure. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware delivery. The embedded URLs and the heuristic 'PDF_SEO_LINK_FARM' point to an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/aws?utm_term=daytona+beach+tide+report PDF link annotation
    • https://suludizivot.weebly.com/uploads/1/3/1/3/131383823/lewuk-desaz.pdfIn PDF document text
    • https://mupoveno.weebly.com/uploads/1/3/4/3/134371030/941128.pdfIn PDF document text
    • https://mepuralomelefaz.weebly.com/uploads/1/3/4/4/134494325/robazexudofepur_gopazofaza_lufamara_xupinodelaf.pdfIn PDF document text
    • https://rakovarirol.weebly.com/uploads/1/3/4/4/134458111/10a465e2786929.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/wuniku/royal_london_balanced_lifestyle_strategy_factsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5492e74-6639-4484-a817-18c529f7f76a/passover_haggadah_maxwell_house.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/agile_model_in_sdlc.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/medusa_turritopsis_nutricula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71c809ec-15b4-4d80-ab4a-27af6d624dc0/lifeproof_ipad_case_warranty.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/23453697917.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/modern_dental_assisting_workbook_answers.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_off0000ce57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE57 5192 bytes
SHA-256: f9e9e007e3fdde1712a2d78f9a2aa7b526c9fe4ca1a497d110a86e0b712d704b
font_01_sfnt_off0000e002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE002 10040 bytes
SHA-256: dc5c45e491c178e455e9104f846a850f5a9bd474b6cd9424cb8100f3a6a26dcc

Open this report in the interactive analyzer, or submit your own file for analysis.