Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad82faf72c3b52e5…

MALICIOUS

PDF

76.8 KB Created: 2021-03-05 18:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 53bc4a400bd917ce663810ea1bc484ca SHA-1: d89df8de837f0314767c36e8e7361aad6527caa4 SHA-256: ad82faf72c3b52e589faf2cea4e535b2dda40cce281a89d8cd57e61f54443287
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is malicious and a phishing attempt. It embeds a URL that, when visited, likely leads to further malicious content or a phishing page. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://maypoin.ru/aws?utm_term=best+science+fair+project+ideas+for+8th+grade PDF link annotation
    • http://sevezor.scienceontheweb.net/form_ssa-1099_non-taxable_payments.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458124/normal_5fdc65af1b18c.pdfIn PDF document text
    • http://pidagenavuziw.mywebcommunity.org/bomba_de_ariete_universidad_peruana_union.pdfIn PDF document text
    • http://netewe9.xyz/what_products_are_made_in_usam29pt.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/fupanimejexamopeboja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457281/normal_60275b6c7966e.pdfIn PDF document text
    • http://puvepum.getenjoyment.net/is_there_a_bose_remote_app.pdfIn PDF document text
    • http://worabipupe.mypressonline.com/gubomakutuvimasud.pdfIn PDF document text
    • http://kvyovk.xyz/6071105046013wv1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411700/normal_5ff86f5949b6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411694/normal_603ad2ac625cd.pdfIn PDF document text
    • http://pazifelurup.medianewsonline.com/98093938810.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/lusofedagifunegeze.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/gofaropa.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/rajibibetuvipufaju.pdfIn PDF document text
    • http://tokavasetalan.epizy.com/what_is_roku_streaming_stick_plus.pdfIn PDF document text
    • http://bezopebadutaz.rf.gd/kumofisubefetesu.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/22956151164.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/53488529818.pdfIn PDF document text
    • http://madepadejatutof.onlinewebshop.net/jixitobowiwukidikape.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_off0000ef28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF28 5704 bytes
SHA-256: 39057fd9dbd08e3d91c6daaefcb5ba9eaaa72213d9a0151e3b7deba7e5e597e0
font_01_sfnt_off00010299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10299 10284 bytes
SHA-256: 8f1502f5b74421278eb9b721ebba2e00f14b6021dd79a2b08ca3487d58a134cf

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