Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d2646e9c4c7f3a…

MALICIOUS

PDF

75.1 KB Created: 2021-03-21 10:43:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: ff3a0b56772418eedb062a7104ba9996 SHA-1: 38e82fe9fead1ea39e99404dd2a9c42b94b1e22a SHA-256: 01d2646e9c4c7f3aa262e7d9ee5a6af6296d01cc57e7a2defd0b5c2ed188a72e
156 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary URL, 'https://resalured.ru/wix?keyword=dinosaurs+in+islam+quran', and numerous other linked PDFs suggest a malicious intent to redirect users to potentially harmful content. ClamAV detection and ML classification further support its malicious nature, indicating it's likely a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/wix?keyword=dinosaurs+in+islam+quran PDF link annotation
    • http://bukobaxaz.getenjoyment.net/74861933786.pdfIn PDF document text
    • https://xovazarorofo.weebly.com/uploads/1/3/4/4/134457653/jobixinug-vejafokelunugob-jilelemozi.pdfIn PDF document text
    • https://cdn.sqhk.co/pizibimo/mU1X8sl/nabebopekadijiwaw.pdfIn PDF document text
    • https://cdn.sqhk.co/sitopizol/bLiiOgh/62834550733.pdfIn PDF document text
    • https://cdn.sqhk.co/tojemapimibo/gegeDgh/85259055292.pdfIn PDF document text
    • https://cdn.sqhk.co/kupatogopalu/jdihZif/suwulovaxuwerej.pdfIn PDF document text
    • https://malitizume.weebly.com/uploads/1/3/4/0/134097131/f47e16e49.pdfIn PDF document text
    • http://vadosixajobirug.mygamesonline.org/panasonic_rice_cooker_inner_pan_replacement.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/8xRbuAV/interactive_ball_launcher_reviews.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/tarizirefevifab/python_data_analysis_example.pdfIn PDF document text
    • https://s3.amazonaws.com/dekogamik/brayton_cycle_calculation.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/upstream_student_s_workbook_c1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/35921942177.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/perfume_river_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/29515635384.pdfIn PDF document text
    • https://5053e88e-9e18-4719-890c-32a1cca0295d.filesusr.com/ugd/411503_90a634530dc84e2086a68ef806ecc908.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/free_printable_weekly_chore_chart_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/35229279123.pdfIn PDF document text
    • http://kilarosine.atwebpages.com/fimimomemovopodulutadot.pdfIn PDF document text
    • https://e53c8fcc-339b-4d8f-83f6-44ddc8c6ace4.filesusr.com/ugd/1ea9c4_a4923a2f1e7749208f41c39ec6b3512b.pdf?index=trueIn 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_off0000e8b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B8 4956 bytes
SHA-256: e283ae7a316114d1687940f946703ee9941da4d58df1b28e7cbf5293e566b7f6
font_01_sfnt_off0000f980.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF980 11176 bytes
SHA-256: ba4e3fc5005752c2d62580ba72ed7128bfb2980677f82516e35d1547b83b0f33

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