Malicious PDF — malware analysis report

Static analysis result for SHA-256 265383078039331b…

MALICIOUS

PDF

62.7 KB Created: 2021-03-04 14:58:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dfe983f13f633392f7c57856b52480da SHA-1: bd8ca78f1293be9c584ae7d78cbbf77804de48a4 SHA-256: 265383078039331b5a2956cb397277ad59ea3aa02857deb62d3becb1b128f53d
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, containing numerous external URIs pointing to various PDF files hosted on disposable domains. The primary purpose appears to be directing users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9240

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://druttle.ru/award?keyword=what+do+the+colors+mean+in+the+true+colors+personality+test PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465025/normal_60384a48831c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502175/normal_603283530c665.pdfIn PDF document text
    • https://noduxulab.weebly.com/uploads/1/3/4/9/134901810/kidetesupekuba_xiwaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478669/normal_600977266722c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405202/normal_6006f0f01b789.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415768/normal_5ff2210eb25f4.pdfIn PDF document text
    • https://duzopotubesafes.weebly.com/uploads/1/3/4/8/134890215/tamuki-sikawimaruso.pdfIn PDF document text
    • https://xelexezeni.weebly.com/uploads/1/3/0/7/130740222/a2579.pdfIn PDF document text
    • https://popagupo.weebly.com/uploads/1/3/1/4/131407300/8268421.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475730/normal_5ffdc9c5e8d29.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461770/normal_6003d880701e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451047/normal_5fe6ea3b09531.pdfIn PDF document text
    • https://wunogalabapa.weebly.com/uploads/1/3/4/6/134603674/foremitowabiboto.pdfIn PDF document text
    • https://dbba0f06-1911-40f0-8c80-a2638c7f81cc.filesusr.com/ugd/b13fd1_bc36183036c9462ba7bce213ca9b9214.pdf?index=trueIn PDF document text
    • http://sapumazolexu.epizy.com/nefesuxalexuzeworeranax.pdfIn PDF document text
    • http://ranoponadugat.epizy.com/college_algebra_book_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/79770058493.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/43578730138.pdfIn PDF document text
    • https://89e5ed4a-33eb-42a6-b5f1-9fc07ea1e15b.filesusr.com/ugd/ff68bb_4acab6e5389d40f8830831653645d8c0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fodose/basha_movie_tamilyogi.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/lofarajuzikojitofukowobe.pdfIn PDF document text
    • http://kugunimekuxaf.epizy.com/arte_contemporaneo_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/zuxomeresiwasepiliret.pdfIn PDF document text
    • https://f6ce3cfb-f922-470c-9e0e-eaf724001b0e.filesusr.com/ugd/defcb2_521717ea38794b1baa1d9ab1a7cb59de.pdf?index=trueIn PDF document text
    • http://dupofax.rf.gd/72853903861.pdfIn PDF document text

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