Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f887c3f56406ed…

MALICIOUS

PDF

166.3 KB Created: 2021-02-25 16:45:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: acd9c4a282037f7c7e09ebf7849e411a SHA-1: 6ef5dc843de1c9713aa8cc3fe961548492ad9eaf SHA-256: e3f887c3f56406ede1a71d7a2c2b0c58dfdb9714d26b15bbdcefb0c56be0ed72
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 0.9984

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://crophysi.ru/strik?utm_term=third+book+of+enoch+pdf+download PDF link annotation
    • http://sixesijilolun.mywebcommunity.org/how_much_do_merchant_navy_get_paid.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/how_to_program_a_universal_remote_without_instructions.pdfIn PDF document text
    • https://midigoxu.weebly.com/uploads/1/3/4/0/134000126/meparizusaxeruvoporu.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/tavux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_6022a6e4254c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415292/normal_5fe7b2b10721b.pdfIn PDF document text
    • http://delinapod.mypressonline.com/zafazuwu.pdfIn PDF document text
    • http://bagomebefekixob.getenjoyment.net/the_selection_movie_netflix_kiera_cass.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_602b6e5d6f32c.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/descartes_meditations_summary_3.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/33695048106.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/xifabilejilab/dupanozi.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/ellesse_jacket_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/fugevuvuwokaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/64215506446.pdfIn PDF document text
    • http://vujapoguxesak.myartsonline.com/nenozonireferozedonanewi.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001f353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F353 21696 bytes
SHA-256: c4dcad1feeea4f484918c21f4894e38718ba50515a416386cbbbfb883eaa89b4
font_01_sfnt_off00022e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22E05 5308 bytes
SHA-256: 4bce44efde967d01391ac05df33e18a153f43301ce0469ff17f1a61ed47fa547
font_02_sfnt_off0002401d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2401D 18604 bytes
SHA-256: 8bcd987a559b1e4d9a599b0a43843a59957d7d27aac96ae1350dbb3811e3a68b
font_03_sfnt_off000275f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x275F1 16060 bytes
SHA-256: 2cca29575edef7a9880cf400a7847cc5df22ba1ee7edc19c7b9bafe603f6c979

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