Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ffdf13e98bb8cb4…

MALICIOUS

PDF

66.6 KB Created: 2021-06-10 00:59:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 13cf89055b0480b470a95a759fe15c4e SHA-1: b3d392a18fb4fb6fd55223647dcc4c53f5536649 SHA-256: 9ffdf13e98bb8cb48e96816f3045667cec275db4b3b2058419606ae1749a8958
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous external URIs pointing to other PDF files, many hosted on disposable domains. The primary URL, 'https://philabc.ru/pbw?utm_term=igo+maps+free+download', suggests a lure for free downloads, likely to redirect users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7207

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.
  • 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
  • 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://philabc.ru/pbw?utm_term=igo+maps+free+download PDF link annotation
    • https://jedirixaz.weebly.com/uploads/1/3/4/8/134875163/214fe6f06d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496381/normal_6016d20b636cd.pdfIn PDF document text
    • https://gebedosoxabitox.weebly.com/uploads/1/3/5/3/135324181/vabutifivakurutoma.pdfIn PDF document text
    • https://vofesoxofibebup.weebly.com/uploads/1/3/4/9/134900141/gajixozizixofenil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427313/normal_603179697a3cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463528/normal_60bd1eaa1c1d1.pdfIn PDF document text
    • https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/2619356.pdfIn PDF document text
    • https://jujizifij.weebly.com/uploads/1/3/4/3/134309807/3979134.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453537/normal_6011dfc8cb1c3.pdfIn PDF document text
    • https://webebusili.weebly.com/uploads/1/3/0/9/130969565/xirijovamerip.pdfIn PDF document text
    • https://rikelakejif.weebly.com/uploads/1/3/4/8/134885243/nelozumiwavopi.pdfIn PDF document text
    • https://voxonevixes.weebly.com/uploads/1/3/4/3/134383310/gekubafeguwef.pdfIn PDF document text
    • https://pimobepasad.weebly.com/uploads/1/3/5/3/135347335/b37a7.pdfIn PDF document text
    • https://tanibegaw.weebly.com/uploads/1/3/4/6/134600132/kavelafizamu_rotin_keteki_wegogejisuzuxe.pdfIn PDF document text
    • https://jimazakogise.weebly.com/uploads/1/3/4/6/134612968/2129d754cc.pdfIn PDF document text
    • https://vowipolijej.weebly.com/uploads/1/3/4/7/134713390/7520708.pdfIn PDF document text
    • https://bisofojud.weebly.com/uploads/1/3/1/6/131607445/kotigojororonizegi.pdfIn PDF document text
    • https://lebugaboforov.weebly.com/uploads/1/3/5/9/135976333/2250213.pdfIn PDF document text
    • https://mipumitazolepi.weebly.com/uploads/1/3/4/4/134495795/guzepinutevo-refabikoniku-fozuvukuvagivim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375351/normal_604facd1c7daf.pdfIn PDF document text
    • https://jujoxetanilodav.weebly.com/uploads/1/3/5/3/135397559/vizavewisu.pdfIn PDF document text
    • https://dajepulexito.weebly.com/uploads/1/3/4/5/134591334/6892498.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/77a08123-25c5-4783-8844-ccb313a5f7d6/31458304219.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56c907c5-bb36-475e-b8bc-57787819611c/97602074046.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1de7ca02-2791-49d2-8dc7-5f4968e7ac57/food_web_biology_worksheet_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcf8459a-b763-452e-88ca-0c7d755b053f/fimigilonivezowewekul.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CA 5392 bytes
SHA-256: 33209e15850c3304e60c5281bc76c2c3a012fdef1d900ccf7bb7fa92046b20f4

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