Malicious PDF — malware analysis report

Static analysis result for SHA-256 097cedfdff6cadb4…

MALICIOUS

PDF

71.2 KB Created: 2020-11-22 14:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 97d2fc51d83fd33aad8f362b6d957228 SHA-1: 90b263c02165a8fc72e9f8d0595c7056061a4bf1 SHA-256: 097cedfdff6cadb48e6f2220e73c0737acfc8a2ba740eecc3ebe9d0303f9d8d8
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 0.9967

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
  • 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://traffmen.ru/123?utm_term=louisiana+black+bear+diet In PDF document text
    • https://pekesasopalono.weebly.com/uploads/1/3/4/5/134505129/8a3454.pdfIn PDF document text
    • https://xaniwunedevivat.weebly.com/uploads/1/3/4/4/134470123/6578204.pdfIn PDF document text
    • https://xazunavawotop.weebly.com/uploads/1/3/4/7/134724639/xomumokegadu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/takebemanijewok/44114582101.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/index_of_movies_2018_hollywood_hindi_dubbed.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/manual_ide_eclipse_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22cb08d9-5a70-487a-b30e-dbf388119c9b/punofovakigibu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c274a12d-0611-461a-acda-0e6ab30893f1/xegogobexakaki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f776d270-5df1-4748-8f7f-ffb29f1f8508/rent_application_form_victoria.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0E 4960 bytes
SHA-256: 62672a286d45beea9bc785f9c5b60c6e44c31734e2302e025586732b96aaf301
font_01_sfnt_off0000ddf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDF0 10616 bytes
SHA-256: a3e99f852bd6c108bba409e9f7cb40f323c0627c0bad7a18ef6174f5d5cbd7a0
font_02_sfnt_off00010215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10215 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361