Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a204053a7447a28…

MALICIOUS

PDF

69.2 KB Created: 2020-12-10 22:56:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 77d9ced77d27f1217679d7ad7cacd201 SHA-1: 1f6dbbf2c34b8746df5353e5a4ab538ccb4addae SHA-256: 1a204053a7447a2898fba509807104b2b710ded73954de672630a9b7e6362e59
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-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://ggtraff.ru/strik?utm_term=the+secrets+of+freemasonry+pdf+elijah In PDF document text
    • https://cdn-cms.f-static.net/uploads/4460042/normal_5fc1d32858da4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497697/normal_5fbe24eec3b7b.pdfIn PDF document text
    • https://gexupiru.weebly.com/uploads/1/3/4/5/134576942/7974e783bb44175.pdfIn PDF document text
    • https://dulipitigisol.weebly.com/uploads/1/3/4/7/134717891/rivor.pdfIn PDF document text
    • https://bijuxoku.weebly.com/uploads/1/3/4/9/134901677/jefulelu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc07dde27a199023ab34438/t/5fca67d93a76450e087f8039/1607100377939/multi_parallel_multiple_accounts_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01687bba-8344-4717-9efa-0d4acb1c48f3/nejemibimufadu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a96bc48-daa9-434f-be29-5071fdcdf381/78907546522.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b0d2239b0722913ccfbe/t/5fc40f7e08845d0924087c7d/1606684545619/77475147946.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc674b111f6a41984abc95a/t/5fd1b5cdef89ac6683754af4/1607579086483/fidget_spinner_positive_effects.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/hollywood_reporter_100_favourite_films.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_off0000ce9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE9D 5524 bytes
SHA-256: 55f4a8bf968753c9fe91ed3a1146e01db097e4e55b4d51c033c10b7147c4a2c2
font_01_sfnt_off0000e145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE145 11364 bytes
SHA-256: b2ed9f6446c780896e0b4daae0434a08195947d41614d17ccbe3ce83c2fc65fa