Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1cc4deb750e8b95…

MALICIOUS

PDF

74.0 KB Created: 2021-02-27 03:08:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e2f53800e10f3be7cacf2c5a691b8523 SHA-1: 933b3fe6d3fdd42914740daf976194d74fbc3cb0 SHA-256: d1cc4deb750e8b95cc321d273c5152b97d70dd74bbcfaa4047df2a378cd8be5b
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://soxebez.ru/123?utm_term=irobot+roomba+i8%252B PDF link annotation
    • https://cdn.sqhk.co/zokuzadisup/hghhibI/69659199289.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/D4Jgjeu/44061125798.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/Zpjfijd/guxis.pdfIn PDF document text
    • http://adv-workshop.site/hide_photo_video_app_apkaukpx.pdfIn PDF document text
    • https://cdn.sqhk.co/desiruzag/yJjfBT5/32062987292.pdfIn PDF document text
    • https://cdn.sqhk.co/konafomaz/hjgeRie/tezonetase.pdfIn PDF document text
    • https://cdn.sqhk.co/wepigosogo/Jggqoja/nopolofosi.pdfIn PDF document text
    • http://endi-itali.space/m_file_b_li_font3z85y.pdfIn PDF document text
    • http://summ-green.fun/antibiotics_classification_based_on_spectrumaezua.pdfIn PDF document text
    • https://cdn.sqhk.co/letonolomo/3zifI5a/guidelines_for_a_healthy_diet_quizlet.pdfIn PDF document text
    • http://poopo.ru/5088896741149tjl.pdfIn PDF document text
    • https://cdn.sqhk.co/ragebobeb/eL7XjjS/pulufatifisotezitizafum.pdfIn PDF document text
    • http://santaparker.store/zozuvewapoxedcyowj.pdfIn PDF document text
    • https://cdn.sqhk.co/pulobegefuzi/xgiaDid/ninja_rope_swing.pdfIn PDF document text
    • https://cdn.sqhk.co/mojupesonon/lQicPA1/avis_extra_driver_florida.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/miledu/az-_103_braindumps.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/corrugated_sheet_metal_roof.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_off0000dcb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB6 4892 bytes
SHA-256: ca61bdf5192055664df4c38ac4f9b83b805a471941cee60abd21dac586d4129c
font_01_sfnt_off0000ed3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3D 14768 bytes
SHA-256: 0f2f52878eabdeafe741716c44dab870589b68560e40afebda695772fdbbb884