Malicious PDF — malware analysis report

Static analysis result for SHA-256 064e5d4b10fedc0a…

MALICIOUS

PDF

67.1 KB Created: 2020-11-24 10:06:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c6cf7de5d8f4be9d083c7705e8c40903 SHA-1: 97f147a6fafa896771152c7e1e767aa3e5dd348d SHA-256: 064e5d4b10fedc0a78abb4fa67b070ea7500a1c873c1fe46525e115263c27af6
154 Risk Score

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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/123?utm_term=washington+state+birds+of+prey In PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5fa6a702ad859.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460706/normal_5faf86b739ed5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474752/normal_5fa61d4f5df13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f88a56441e26.pdfIn PDF document text
    • https://rapovesotupoma.weebly.com/uploads/1/3/4/3/134353038/xigojaj_fatujisaf.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/povafitati.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/fonazuzixagizir/wowoketiwabad.pdfIn PDF document text
    • https://s3.amazonaws.com/sukobogixe/maine_pyar_kiya_songs_mp4_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/11182943961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f0b3b37-5d9e-402c-b5ca-32fc96706fd8/nowofusezanot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/baa73ca2-4e20-404b-8d98-03cd0af857f7/73201696971.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7cf1aff8-2c2f-424a-a9b7-39e701307225/reinforced_concrete_design_handbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/093945d0-22d4-4c5a-918a-d3c5cc11ebf1/fifikomegu.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_off0000c942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC942 5528 bytes
SHA-256: a27f5b42a96787c00142b8921c54603c648aa316a31506d0c784b01c71fb15b4
font_01_sfnt_off0000dc15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC15 10568 bytes
SHA-256: 71b49784bb71cecc39ff39a3c77a43be81314007e2d2aa695011e6ab36df650a