Malicious PDF — malware analysis report

Static analysis result for SHA-256 c67cdcdfee2de898…

MALICIOUS

PDF

77.7 KB Created: 2021-03-15 08:11:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e59925275e31389338b51b113ee9d00e SHA-1: 97724f9f95e3a1b5f1c66e390711125ad3658f34 SHA-256: c67cdcdfee2de898c71818f78b65afef37e35a2e50413f5dbecd42ddcf31bdde
104 Risk Score
Tags
free-cdn-ebook-manual-lure

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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/strik?utm_term=mcdonalds+e+learning+application PDF link annotation
    • http://wafavipejolap.22web.org/curso_de_primeros_auxilios_gratis_cruz_roja_bogota.pdfIn PDF document text
    • http://sevelorovuwo.66ghz.com/bundesliga_18_19_spielplan.pdfIn PDF document text
    • https://denibemexe.weebly.com/uploads/1/3/4/5/134597338/c0ab2c6d3f.pdfIn PDF document text
    • https://cdn.sqhk.co/doporaba/hfchcnP/alchemy_meaning_in_marathi_and_pronunciation.pdfIn PDF document text
    • https://disadoxamegipu.weebly.com/uploads/1/3/4/5/134527150/30674f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485705/normal_5fc8e160a4bdf.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/hijfshi/numadoxikekuxezunobidike.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415951/normal_603ab294c7ed2.pdfIn PDF document text
    • https://cdn.sqhk.co/punipopi/niglbic/gizewazofofini.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367633/normal_6046118eb6a85.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibidizog/m9hg0mu/easy_birthday_cake_recipes_for_beginners.pdfIn PDF document text
    • https://bufuxilanu.weebly.com/uploads/1/3/4/4/134402831/lumupowetu-vawisajejitevu-wefituraf.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/jaShdJS/tafl_board_game_instructions.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/pojikovewijeja/mudasafo.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/amazer_u_lock_manual.pdfIn PDF document text
    • http://wazinupizut.epizy.com/yale-brown_obsessive_compulsive_scale_y-bocs_scoring.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/wuxinozosave.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/is_the_lexus_rx_350_a_reliable_car.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/example_skills_gap_analysis_template.pdfIn PDF document text
    • http://rawonuruked.rf.gd/61148437321.pdfIn PDF document text
    • http://bolixul.epizy.com/those_who_wait_upon_the_lord_song_lyrics.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_off0000eec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC0 5248 bytes
SHA-256: 09091259646024dee5f08af50cd9192cec83f9135bf1d474c807714e22a68f74
font_01_sfnt_off000100b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100B0 11948 bytes
SHA-256: e14968280adc71705ff1ffed3d12640cf5730e5265ea0696d50c8a3a95d3ce23

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