Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9f144cd352f543a…

MALICIOUS

PDF

83.1 KB Created: 2021-03-23 20:05:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f1e59fb4ca8ac0d6c7afe5bbc4da729b SHA-1: e7f03b412385c06bcc0716fb26a23285b470cab5 SHA-256: d9f144cd352f543a6794f80490ed955d68a8ae3c6e939dc4ebcd66d5cc720c56
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 0.9997

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://crophysi.ru/wix?keyword=irregular+present+tense+verbs+spanish+worksheet+answers PDF link annotation
    • http://doxisolawasusig.66ghz.com/android_convert_bitmap_to_jpeg.pdfIn PDF document text
    • http://sewiximafa.22web.org/competitor_analysis_matrix_template.pdfIn PDF document text
    • http://turiwovezaz.iblogger.org/pewazi.pdfIn PDF document text
    • http://xidotamasaw.22web.org/navojegis.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/juzowilipi/broken_chestnut_netherland_dwarf.pdfIn PDF document text
    • http://gufogima.epizy.com/krups_il_primo_espresso_machine.pdfIn PDF document text
    • http://renumobopus.rf.gd/64650553974.pdfIn PDF document text
    • http://tupopozavagaf.rf.gd/jadabup.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/i_am_discourses_on_supply_volume_19.pdfIn PDF document text
    • https://s3.amazonaws.com/jevelel/bizisamoxojorubes.pdfIn PDF document text
    • http://nelifofufotilep.epizy.com/spandanam_answer_key_2019-_20_first_term.pdfIn PDF document text
    • http://zepinurubav.epizy.com/kundali_software_free_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/39314095681.pdfIn PDF document text
    • http://zufokolabu.epizy.com/5488581594.pdfIn PDF document text
    • http://jiguxikawijax.rf.gd/tartine_bread_recipe_list.pdfIn PDF document text
    • http://tefefusojobus.rf.gd/77236010938.pdfIn PDF document text
    • http://lolufijufafoz.rf.gd/environmental_concepts_of_architectural_design.pdfIn PDF document text
    • http://gonidiwofove.epizy.com/biology_oxford_dictionary.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/light_microscope_labeling_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/tarozawawazawep.pdfIn PDF document text
    • http://xuperaletofigaz.epizy.com/4247303097.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/hssc_clerk_answer_key_2019.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_off000101a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101A6 5372 bytes
SHA-256: cc0caea8873adc761fd93a3ede29f0d3390fddbc27402e282ff2aca7fb1f7b1e
font_01_sfnt_off000113fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113FB 13284 bytes
SHA-256: 5fc8e20c10642284fc865a018e350b01d99e91c2a5c8c28b4875112569b20765

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