Malicious PDF — malware analysis report

Static analysis result for SHA-256 2010ce12c8800f9a…

MALICIOUS

PDF

76.0 KB Created: 2021-04-04 00:38:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 64a74717b25d9600271e57901012ee46 SHA-1: 1bec44714c6fb5e74839ffa167b676f6fde8a1f1 SHA-256: 2010ce12c8800f9a922e81dcc6980c86906b16120528b0d7e18077f9f1bd5fb0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file is detected as malicious by ML classifiers and ClamAV, and contains an embedded URI pointing to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to a 'Sony digital voice recorder manual'. The presence of external URIs and the overall detection suggest a phishing attempt to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/wix?keyword=sony+digital+voice+recorder+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392647/normal_5fdb2dc93345e.pdfIn PDF document text
    • http://getepitisux.mywebcommunity.org/kafaremesafipupasixis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479678/normal_5fcbd8ff8588e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481064/normal_5fd61a10200fd.pdfIn PDF document text
    • http://boketizabujig.scienceontheweb.net/henry_cornelius_agrippa_three_books_of_occult_philosophy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380219/normal_5fc6484fbd32b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366382/normal_5febb5bdb8294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4531523/normal_605d1880f01e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378404/normal_5ffe1fb733193.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454277/normal_5fe1d367270ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427282/normal_5ffbff33ee1c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384295/normal_601fb337235a9.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/sukedil/work_permit_application_form_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38425a04-10e2-4b8e-aede-dad52143c1ba/83761896077.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/advisor_platform_comparison.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07b08f62-7875-479d-a016-55b324869b3c/why_is_my_wine_cooler_so_loud.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/4940483925.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a205f48-4941-44d8-9244-7f5015d2ba10/how_to_make_creamy_cajun_butter_sauce_for_seafood.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/91707472647.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c82c53e-d5b0-4b87-b688-f21198b54b3b/ruwatuwanotogid.pdfIn PDF document text
    • http://gakamaxoluzes.atwebpages.com/98705059592.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da90aaad-c327-4c15-8134-2cb1c1c280aa/82538923631.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD4 5344 bytes
SHA-256: d89faf302d35786ae58c177d760d4633d0208858417577ef9168eac843820ccc
font_01_sfnt_off0000fe00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE00 10704 bytes
SHA-256: 181cf35f1b9df6c31d8c351a6879e2e271c626f840de43dba19548706d0825ce

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