Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce63794a21c9f71e…

MALICIOUS

PDF

65.0 KB Created: 2020-12-14 02:52:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9bd234c65bf87c4a8e02c10aeb29fe86 SHA-1: d996be1b069c0b1110384f599f81e10b6cec176a SHA-256: ce63794a21c9f71e55753d414ca8be7c78845fd8bdeac08aa508a3a90ef85616
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 0.9998

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://traffine.ru/strik?utm_term=what+is+tempo+and+dynamics+music+examples PDF link annotation
    • https://nupirunu.weebly.com/uploads/1/3/4/2/134265900/2311510.pdfIn PDF document text
    • https://getarejiviwos.weebly.com/uploads/1/3/4/6/134683174/sulubobizoxeneb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455197/normal_5fbc9eb8bdaef.pdfIn PDF document text
    • https://mumerigowijegap.weebly.com/uploads/1/3/4/7/134771458/zazifagodibagi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402938/normal_5fcc785387487.pdfIn PDF document text
    • https://tifobavojosimiz.weebly.com/uploads/1/3/4/5/134505066/modafapudu-nerefeded-midadavupiwop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/afa1cf74-2e51-4fa9-b711-52b9b12d79e1/dokezimutiv.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/68288539653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb7fdc33-1f62-4c78-a177-d721621b324a/valulibidazid.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/paid_to_click_sites_legit.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/jujugowemidogavuwozoxu.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/42423464739.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/chimney_inspection_report_form.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/24628635240.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/paula_isabel_allende_espaol.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_off0000c2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F2 5400 bytes
SHA-256: de208a69595f36cecc04042273b57be3750e8631294a612246a48d56e6c07505
font_01_sfnt_off0000d543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD543 9888 bytes
SHA-256: fbab8e82d419e9ca0a1c5367012fb5819cc0478f1ebfcbccce5f70f8e108aa59

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