Malicious PDF — malware analysis report

Static analysis result for SHA-256 e298978795153008…

MALICIOUS

PDF

64.3 KB Created: 2020-11-24 02:55:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ec76745f237c40a7c1d3a9ee2cc1ab7a SHA-1: 908a85497f32fa7f2a110cf955f8a5841327fbe2 SHA-256: e29897879515300871b6c51c83e3ab8492a1bfb603764d37b2ef02356eed23b0
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 0.9998

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
  • 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://traffnew.ru/aws?utm_term=current+hematologic+malignancy+reports PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5f8bcbd63b25f.pdfIn PDF document text
    • https://sebanibukuj.weebly.com/uploads/1/3/4/3/134354661/847a63176f6a7b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413851/normal_5fba3737adf58.pdfIn PDF document text
    • https://gizojobov.weebly.com/uploads/1/3/4/4/134436228/d37e4d3ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502833/normal_5fb02e90c7fb1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fd5fad6-f478-4ca5-b01c-70641f636bbf/fuvugalatibufid.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/yellow_things_in_fall.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55a7d761-518e-481e-9bd0-3985d5d7efee/element_present_in_all_organic_molecules_is.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/80817386681.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/international_accounting_standards_24.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ccfb12c-1c9f-4c9f-bdab-770b0647c1a7/cch_lm_hiu_ng_lt_trang_sch_tro.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_off0000bc20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC20 5352 bytes
SHA-256: e06b80909bc0e603af4cd198fe200f3b9c28ca8cb5b577c27f0a78523aecd2a4
font_01_sfnt_off0000ce30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE30 12336 bytes
SHA-256: 8dc4a2d701d60eb3155ce285db18084917090f8331781a1493e49d5e929416c0