Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d35dafb9b84c8f5…

MALICIOUS

PDF

76.0 KB Created: 2021-02-14 11:16:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 283396367e41278e87fd4b415c81bafc SHA-1: 7021c6a2f3581d0e0e31a349456baf2874c5d072 SHA-256: 9d35dafb9b84c8f5a79b3be589ff6b913044f279015bfaf172b4e4c506fea6d3
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-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://druttle.ru/123?utm_term=honey+from+the+rock+lawrence+kushner PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408878/normal_6008542481b8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366364/normal_5fff68a1d6ab3.pdfIn PDF document text
    • http://it50disconto.pro/wavifopjvl7c.pdfIn PDF document text
    • http://smilex.club/majudodatilofozogugaye3l6.pdfIn PDF document text
    • https://cdn.sqhk.co/gobejilu/bQgdjeI/goodreads_quotes_about_change.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388825/normal_5fcedd7f0d040.pdfIn PDF document text
    • https://wojumujar.weebly.com/uploads/1/3/5/3/135396772/535029.pdfIn PDF document text
    • http://petersikdar.com/vilez5aagm.pdfIn PDF document text
    • http://hhizmet.com/kemizonevigasanukognf1c9.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/40ijgc3/femelofukupudes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480588/normal_5fce379c292b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447447/normal_60229f9bcbc85.pdfIn PDF document text
    • https://gozibaduvixumu.weebly.com/uploads/1/3/4/6/134628844/muxutin_jimoso.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jegowijuvu.epizy.com/wakav.pdfIn PDF document text
    • http://lupipabibokaf.rf.gd/15761656996.pdfIn PDF document text
    • http://latuwukatagowa.epizy.com/45966716202.pdfIn PDF document text
    • http://seladetitogar.epizy.com/yann_tiersen_la_noyee_accordion_sheet_music.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_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 5340 bytes
SHA-256: 4c51b23d5d07609bf389546cce010106e42f459dae729fbf9f8b300ef88d6692
font_01_sfnt_off0000fefb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFB 10544 bytes
SHA-256: f525729f1f736fb52554a50adcdb60f0fc3ec029f6e4c13c31a327ce1c2751d7