Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d0233134799bed2…

MALICIOUS

PDF

72.1 KB Created: 2020-12-03 22:23:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 15719c98be0c05011ee98343c246e520 SHA-1: 153eb3abedaad650332b2c7d45d63855fb4bd426 SHA-256: 4d0233134799bed2a6a8e75223e6f077dea98c9ca23b50b54e4778ee66901208
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 0.9995

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://traffine.ru/strik?utm_term=travis+afb+space+available+flights PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dorulusof/81407339932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0affdd9-0cdb-455a-b86d-89df5426b93d/mei_lin_7_pro_bundle.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/dopuren.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/the_isley_brother_video.pdfIn PDF document text
    • https://s3.amazonaws.com/fifuto/bless_the_broken_road_selah_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/16109583052.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/cisco_router_isr_4000_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/butidowurutesad.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/wakozo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/333b5471-7799-452a-a22e-500ea62519a6/61135368055.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_off0000db5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5A 5424 bytes
SHA-256: cf303410126b1e904d165b9489ff5ed169b96d8e84088882c2fd92397c93e8a0
font_01_sfnt_off0000edc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC9 11428 bytes
SHA-256: 96cc04e079ca9bc996bd38e810c17be4aedb7480b891c801c48a195e2ab7710c

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