Malicious PDF — malware analysis report

Static analysis result for SHA-256 7030596c0a89f3bf…

MALICIOUS

PDF

71.5 KB Created: 2020-11-10 23:10:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: cba1ee4b53d47720efde233cc15765f5 SHA-1: 1d8eb86553834930d98cfa182d510e1d25c97b10 SHA-256: 7030596c0a89f3bf90bbccc6f2d67124b7add5ec49cca06a057387998b213815
126 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to disposable hosting services and potentially malicious domains, suggesting a phishing or malware distribution scheme. The PDF structure itself is identified as a link farm, further supporting this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://trafffe.ru/123?keyword=alberta+outdoorsmen+forum PDF link annotation
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/luwowux.pdfIn PDF document text
    • https://zafugetab.weebly.com/uploads/1/3/4/5/134502131/zenuxibezakazi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383695/normal_5f92edb958e09.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/wuvagitutadovalubulo.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/946536.pdfIn PDF document text
    • https://gukijofajileraw.weebly.com/uploads/1/3/4/3/134392650/xugugitoxolekode.pdfIn PDF document text
    • https://gogiwujuduk.weebly.com/uploads/1/3/4/3/134352159/2779270.pdfIn PDF document text
    • https://niramividaro.weebly.com/uploads/1/3/4/5/134517418/1209316.pdfIn PDF document text
    • https://pevigegokepos.weebly.com/uploads/1/3/4/3/134366184/xejejuzotibezebawe.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/038db943-7dae-4bd4-9c7a-f6dc1d3d458a/essential_readings_in_comparative_politics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c571303-8cda-411b-a18b-703d4d7ad122/2588865939.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_off0000da04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA04 5184 bytes
SHA-256: 5f9176e0478a5aa6163247039d591bb09f183f7d8b00296c2611069b8c591921
font_01_sfnt_off0000eb86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB86 10996 bytes
SHA-256: 6e55d936835c9841def324f54fda5ff2c4481dea5c5f48af3452a80b204e7d02

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