Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec2a76435cc92451…

MALICIOUS

PDF

112.9 KB Created: 2021-03-21 01:46:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d3bff7f0e69a679608b9866e3f771678 SHA-1: 5aa9c97a5105f980bf1903e7ab20f2e1348b2610 SHA-256: ec2a76435cc92451fb02fd4efd3732888c774804296bd52c092152e657e0b34b
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 0.9993

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://lozipotod.ru/wix?keyword=manchester+ky+county PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420025/normal_6043f026eecde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452376/normal_604168c9d51ee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452837/normal_60315aea2fc42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425255/normal_601f3bd6240b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422386/normal_604aa83e797bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392667/normal_5ff2e815bb314.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419430/normal_6032147004636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_6029aed46c799.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471992/normal_6003f4f7a612d.pdfIn PDF document text
    • http://nout-prodat.site/download_field_defender_mod_apkbm1ev.pdfIn PDF document text
    • http://afracheat5.xyz/3865280569855hub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392857/normal_6041643aad454.pdfIn PDF document text
    • http://erogan-oficial.site/70140465138n1y54.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443815/normal_5fc8d743b149f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449183/normal_5ff61687b4540.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371791/normal_5fcbe9eba2696.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/f10e9cb0-c47e-423b-ac2d-fda0e96379db/7138573335.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d4b3497-3cb6-4f5b-8ba0-af35c13359f3/wogixiroxalef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d60486c8-804d-4f51-bdaf-25b57a9a9f83/what_does_strip_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33a0f5ab-1eb8-4c88-a671-6daf087af338/the_eyes_of_the_dragon_first_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71f815f2-0c0d-4215-9d94-54a90f889634/sniper_captain_phillips.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cd9ca81-da27-40c7-a342-b654d0ed0ee9/what_is_the_synonym_of_lethargy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/796705f1-d6e2-4384-8fc3-7dd199e71de4/51171903505.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e196f7-ec3b-4f5c-9c34-22a38b3f880d/whats_the_best_knot_for_braided_fishing_line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56152e3c-50d2-463c-9390-8b9dcde1f7bd/11509624741.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_off00017f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17F15 5024 bytes
SHA-256: cd5f32187b8b29f6fa7a964ce17a2f1cf9a145e44bf9f467e39dbe6bf56272a1
font_01_sfnt_off00019036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19036 11060 bytes
SHA-256: 2ec392843610963909cdeceec69a258611c8ac6786e0cfe0dd324a6865e9d35f

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