Malicious PDF — malware analysis report

Static analysis result for SHA-256 879662ef7e66ff6f…

MALICIOUS

PDF

79.5 KB Created: 2021-02-24 07:48:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 508ed983eadd8262dd96d843737af505 SHA-1: 16d93890057bdecb39b750ce0fb7bc32991327a5 SHA-256: 879662ef7e66ff6f81203378211117db29b427a8769f897118d099d1ac96c49a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL that mimics a search engine result, likely intended to trick the user into clicking it. The PDF structure itself also contains suspicious elements, such as duplicate object bodies, which can be used to obfuscate malicious content.

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://leonvi.ru/strik?utm_term=how+old+is+percy+jackson+in+book+1 PDF link annotation
    • https://mixuvuweti.weebly.com/uploads/1/3/1/4/131483588/sawilofola.pdfIn PDF document text
    • https://cdn.sqhk.co/bikugipozamu/dJbhaji/wolemobegikofa.pdfIn PDF document text
    • http://savadaqwe.space/pokemon_let_s_go_eevee_guide4o4si.pdfIn PDF document text
    • http://lamenomapod.iblogger.org/environmental_impact_assessment_design_wiki.pdfIn PDF document text
    • http://naxovonukile.iblogger.org/adolescence_education_programme_report.pdfIn PDF document text
    • https://tewoxole.weebly.com/uploads/1/3/2/6/132695213/f31ab59e1d.pdfIn PDF document text
    • https://fikakexuk.weebly.com/uploads/1/3/0/7/130775276/2d679e866.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/jawusawar/12025408080.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/foot_and_ankle_exercise.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/madudinovaribir.pdfIn PDF document text
    • http://fotexamaluvim.epizy.com/bavokorude.pdfIn PDF document text
    • https://s3.amazonaws.com/zagubip/the_beggar_s_opera_score.pdfIn PDF document text
    • http://mivuturirem.rf.gd/vazomiwasiko.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/nawuboriderudusemaj.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/chemistry_density_of_gases_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/booting_into_safe_mode_android.pdfIn PDF document text
    • http://sonapap.rf.gd/magic_bullet_parts_walmart.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_off0000f8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BB 5552 bytes
SHA-256: 8973c2542ecfb09962aa0c1c2dc867bd57abccbee1598359d1784703bffa3d3e
font_01_sfnt_off00010bc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BC3 10948 bytes
SHA-256: 37fa13835269a2e1283d7cf9d712cbd0d38b096c63399b9781dd84b4d11b7ec0

Open this report in the interactive analyzer, or submit your own file for analysis.