Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed41130765956f0…

MALICIOUS

PDF

67.6 KB Created: 2021-01-05 22:01:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b9076ccdf18d54f665c1af081c92dbf3 SHA-1: 10ec655531cf39f70c7e99519b301737f1b4e6c8 SHA-256: 5ed41130765956f08cb95e0c7885c7d9c816fe966a5cd3d6e9d301c2be372adf
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, a common tactic for SEO poisoning or distributing malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing. The embedded URLs suggest an attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7366

Heuristics 4

  • 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
  • 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/aws?utm_term=alum+creek+fishing+report+2017 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402507/normal_5f90ea2436c1e.pdfIn PDF document text
    • https://faremuxonebaw.weebly.com/uploads/1/3/4/5/134598019/fuwog_lojukezuju_madebepuf.pdfIn PDF document text
    • https://xoselupovogim.weebly.com/uploads/1/3/4/6/134610719/mofokuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/598bbb8b-47b9-42a7-a76b-6b228a91a7e6/black_hearts_emoji_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcb4cba4-e37c-468e-9ef6-de4a03d60b45/facturacion_gasolina_grupo_fuchela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc581329-518a-43c0-9f77-84c611e08d8a/wipinewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96e2d5fd-030a-46ce-af02-6ec1fddceb16/kindergarten_sight_word_list_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/adverbs_vs_adjectives_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/954e46c9-50a6-493e-be76-78e5532e4261/48528222747.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/dediwodeguvotasarejoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e39976-6c4e-42d1-9b4a-f39709019e34/dorf_svoboda_9th_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c6bb55c-9534-492a-881d-e702a3a368cd/personal_hygiene_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f005efe-0e7b-474c-b412-1c48a607d29a/98131489885.pdfIn PDF document text