Malicious PDF — malware analysis report

Static analysis result for SHA-256 175e4ef1d25091dd…

MALICIOUS

PDF

73.9 KB Created: 2021-05-26 05:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ac7cafaba2985ee9b4e94083373d8062 SHA-1: b591c369187efbec3e2bf4b3aa4be500f7c35199 SHA-256: 175e4ef1d25091ddcbb24e784311cc732165096f7bb7c5651c32c13bb4379972
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=how+to+make+an+8+team+double+elimination+bracket PDF link annotation
    • https://dinowupeguf.weebly.com/uploads/1/3/1/3/131379410/nuwaseravuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412758/normal_6035854e8eb50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488101/normal_6019d5155cc42.pdfIn PDF document text
    • https://zefinefan.weebly.com/uploads/1/3/2/8/132816158/vesuriragovi_ropimugasotobup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382420/normal_5ff2c383e34e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384649/normal_5fc5eb9c63056.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393925/normal_60481b151aafb.pdfIn PDF document text
    • https://fonutupo.weebly.com/uploads/1/3/4/7/134727000/8271029.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472494/normal_601602161d566.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/vitelitubovuluj/perimeter_grid_worksheets_grade_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe433beb-b86e-4bcb-bcf9-bde9c96ebdda/descargar_sims_4_todas_las_expansiones_gratis_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/691b4dac-184f-4f2b-b931-7b8d22a1b796/can_you_hotspot_with_consumer_cellular.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83c298a5-98ef-4dd6-b494-e5913bcfb85f/jofaxavene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/427cec5b-a50b-4512-8d3a-1617ef92dabb/75970703015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1aff0fc-d607-4b65-9483-78ab4b459779/kixokizulexawugumewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afdfdcd2-6742-4f79-9970-5534739748e5/sandisk_sansa_clip_zip_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6e17425-4fa2-4fb1-8f03-1835f790dba2/vetirawibazakipena.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/dazevaxorexurogamofogi.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/juzikefaguzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/854a1213-9a24-4b6c-b7ab-b88f23ec9de8/6097796435.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/fegozosofajisovarasuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3069245-b154-46f9-9b6a-1b9984eefc93/toner_pour_imprimante_hp_laserjet_2100.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_off0000e0bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BC 5360 bytes
SHA-256: 907b716d2e91daab8362ec8e075be5c3a08cc8bf67386e52a1a19f4f5a4339fb
font_01_sfnt_off0000f2ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EC 11320 bytes
SHA-256: c158cb09bbec1fe30d151b7cb2997c64e016f290778b4dfb9e63d6a9e9819e47

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