Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e55a41078c4b09…

MALICIOUS

PDF

81.6 KB Created: 2021-03-27 13:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ca1a5f1647a853c3f5ee03b5808a4db6 SHA-1: 711c49a54da520d2fa886c9e3bb662fa42724695 SHA-256: e7e55a41078c4b09069a781d5c00a9766c0e4711fcff64375b2723fce9f9c109
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://dugedepap.ru/123?utm_term=aldo+leopold+books+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4463809/normal_60028c776da0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426408/normal_60170e11cffa2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496165/normal_5ffe4f708c303.pdfIn PDF document text
    • https://cdn.sqhk.co/bonipumijed/kqigjjE/european_historic_rally_championship_2020_calendar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469849/normal_600dd752521f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372719/normal_6034d97d9e28f.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/bgh8icH/pikmi_pops_surprise_jumbo_dog_plush.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501214/normal_5fcf7debaa01c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480173/normal_5fe43e1053333.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491437/normal_601bcfc93013e.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/iffrjcG/sky_force_reloaded_switch_2_player.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459035/normal_60139585ca5ec.pdfIn PDF document text
    • https://cdn.sqhk.co/radofufalam/iehzWge/7973861983.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415291/normal_600abac5e5deb.pdfIn PDF document text
    • https://cdn.sqhk.co/nezusoxe/ggJ3tie/xamuzawiwilodidijufu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455198/normal_6008acf4f2588.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369920/normal_600df358576b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377116/normal_6019f24c0b30e.pdfIn PDF document text
    • https://cdn.sqhk.co/sovokeduseb/WUHDmPB/master_of_relief_carving_and_sculpture.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/iehjjdz/xizezojezum.pdfIn PDF document text
    • https://cdn.sqhk.co/rudolikube/ha2PPgh/gmx_cloud_daten_loschen.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/70a0882f-420a-48af-9cfc-76099afd30e3/39265966683.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b639ccbb-62ac-4026-9375-e52875b26162/lafefili.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/113fb7bd-dd60-4360-b179-3b1d4e710e9f/56006659135.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b666f898-355b-44c8-b1ba-8364588d15f1/aa._near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea3a3513-1baf-41e2-917e-167a8adad8e4/8307953548.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_off0000ffe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFE4 4920 bytes
SHA-256: 819d7a6e666daf71e706f726687fed0f75246f5807821770aec1668dc6514b66
font_01_sfnt_off000110b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B4 13152 bytes
SHA-256: 687076b30a50349d241748932c539cc318f22dcf3328bb883bde0d7f8d15a92e

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