Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe620305a9bd8810…

MALICIOUS

PDF

98.9 KB Created: 2021-02-28 20:55:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: c060c694d2bbba0167183bbe0b60362c SHA-1: e386fdc3c576cb209421c4758e3cb60ca59a04f6 SHA-256: fe620305a9bd8810b493b66128405d436447c2036332ee69d2217c5504b781f0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically identifying it as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/wix?keyword=rappelz+witch+quest+2+138 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390684/normal_6023655b9ba05.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/gdWFge5/18508879455.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477379/normal_600116c1c363d.pdfIn PDF document text
    • http://vk-settings-change.online/historia_de_la_contabilidad_librod375h.pdfIn PDF document text
    • https://cdn.sqhk.co/dukapudubi/27ic2ge/88130922471.pdfIn PDF document text
    • http://changely.club/6153421521049l0i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392877/normal_5fd90393e36d4.pdfIn PDF document text
    • http://ovca.space/971307591885sgc2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377125/normal_5ff366d6b6727.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413587/normal_600c896ceb315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467573/normal_601f145ed6abb.pdfIn PDF document text
    • http://seplafond.xyz/monstrous_terror_meaningof3l7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366354/normal_602ddf9779642.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404955/normal_5ff76bf2de8e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484995/normal_601922c494de7.pdfIn PDF document text
    • https://cdn.sqhk.co/rifibimilo/igyA0am/fm_radio_app_offline_for_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406771/normal_5ff8044cb9fa0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0001465a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1465A 5740 bytes
SHA-256: a4b696454bf6aacb2427e416fb1d794d71d86b9b1810f3cc7e4356088cda9dbf
font_01_sfnt_off00015a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A0B 10752 bytes
SHA-256: bdaaefbda633f4535d977c0717e6851f9a9382e1e3cce81da4fec57cc2d1e5ba

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