Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2c156448dc7d609…

MALICIOUS

PDF

79.1 KB Created: 2020-12-28 20:13:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a1f251e600af4f6896d39d964fa3b538 SHA-1: 656c098559111202e55a4b5d789a2829a1eb565b SHA-256: c2c156448dc7d6095c9e8715480278a37449cf9c2cb5f217100e19441524e040
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 0.9998

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://traffset.ru/123?utm_term=wow+fire+mage+talents+pvp PDF link annotation
    • https://cdn.sqhk.co/wezopexa/AjgibE8/download_mod_among_us_di_minecraft.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383300/normal_5fa880735e3ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369655/normal_5f892afd6f98a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473047/normal_5fe6d5ad9a228.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390092/normal_5fd733e8766de.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/lakadutof/acls_provider_manual_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/65992942876.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/25981066618.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/nusevetumowamusezabed.pdfIn PDF document text
    • https://s3.amazonaws.com/pevarijidasalop/subewilugenosuposizi.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/78398504312.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/daikin_ceiling_mounted_air_conditioner_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/d_d_5e_cleric_spell_list.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/chicken_soup_books_submission_guidelines.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e274.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE274 5388 bytes
SHA-256: 645413114cb051ff1ff92e3a2c3450f0d7028c2cb3cd57c7316a84b916025cd9
font_01_sfnt_off0000f4d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D2 11084 bytes
SHA-256: 82e37edaad353cac3c40121d574d07aa74706278feaeda04f75b5cb708946912
font_02_sfnt_off00011a9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A9F 16144 bytes
SHA-256: f6e0f4a25f18a144688c6b7f40519a5efc98c72643b9054f89526e396d9b459d

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