Malicious PDF — malware analysis report

Static analysis result for SHA-256 671c2e29380bc728…

MALICIOUS

PDF

61.1 KB Created: 2020-11-26 06:10:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: dd619e139d0b77b2630d29c9f1736ccf SHA-1: d6b4ad72d7db6b746564f1c57c1cf417dd12976a SHA-256: 671c2e29380bc728c6956b417d864bedb1a687d32b0cee21190e7537c1bd33b8
96 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 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 0.9994

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://trafficel.ru/strik?utm_term=furby+buddy+for+sale PDF link annotation
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8276696.pdfIn PDF document text
    • https://tedovuja.weebly.com/uploads/1/3/4/4/134465286/9523903.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://uploads.strikinglycdn.com/files/95e94600-fd06-401d-8d8b-27dbb8d938c2/66700820357.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4a4d8c7-439b-4ac7-8671-b88fc27b1232/issabel_pbx_vs_freepbx.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861cd245-212b-43f6-a08e-16827f333390/costco_apple_pie_rolls.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5b2b8c7-3b35-412c-882b-acdecb4413bb/grim_dawn_potion_of_clarity.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/biwilifisase.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5c2ecba-e9c0-45e7-9481-79750095f528/43012599009.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/gapumof.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/sequencing_events_in_a_story_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34b769c1-8e95-4352-95df-66cd7bfb23c8/dazalore.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_off0000a878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA878 4748 bytes
SHA-256: 8ac574c6ee5346321832ee82980d148e2c1fd12ac4638c11f26eb48a0b54675c
font_01_sfnt_off0000b8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B1 9820 bytes
SHA-256: b0a297633fcaf93d2c584c8ebd3fd4762f1ac4ca09a0ebe6ec8bdda4b549660e
font_02_sfnt_off0000da52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA52 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176