Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded40eb9df329d40…

MALICIOUS

PDF

74.8 KB Created: 2021-03-10 11:16:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: dd9d9a6437d9fd2e46083bfbde8a8120 SHA-1: 5ec5da08f77614491b7aabd6ef9026af9988dd67 SHA-256: ded40eb9df329d40bb4f3cb9568b1c763bf5c5ed5ba03482f000626c0289bb40
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that, when clicked, leads to a domain associated with malicious activity. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or a scam, disguised by a seemingly innocuous topic. No scripts were extracted, but the presence of external URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://botokaw.ru/aws?utm_term=how+long+does+dyson+battery+take+to+charge PDF link annotation
    • http://fanisore.sportsontheweb.net/34696362532.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366347/normal_603002d82236b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488807/normal_601b56923582c.pdfIn PDF document text
    • http://luxasireku.sportsontheweb.net/dyson_ball_animal_2_upright_vacuum_purple_refurbished.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/10589165242.pdfIn PDF document text
    • http://tulumiv.medianewsonline.com/xemadadutigar.pdfIn PDF document text
    • http://meroxisawifagu.mygamesonline.org/who_constituted_the_third_estate_of_france.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373505/normal_5ff52d4c1cf35.pdfIn PDF document text
    • http://movizopolu.medianewsonline.com/self_reliance_emerson_summary_litcharts.pdfIn PDF document text
    • http://sokegex.mywebcommunity.org/19343163800.pdfIn PDF document text
    • http://sunakijabe.sportsontheweb.net/sezib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/15885fc9-0016-4b5a-8faf-3760f671498b/tewokenoposovar.pdfIn PDF document text
    • http://taguloxutenafol.myartsonline.com/system_of_inequalities_word_problems_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7687d77-b7cb-40c3-a6e3-534e2748f7a7/why_does_my_dryer_not_turn_on.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/99750374990.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/28860831161.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/regixepujawubokoboluxiseg.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/70745099858.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/41016099533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75908030-8988-41b5-b386-763759f35430/jifamikixebotuzojadapi.pdfIn PDF document text
    • http://kuzemepusiloj.onlinewebshop.net/bakavelotukimezilasigi.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/alberto_caeiro.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_off0000e63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63B 5560 bytes
SHA-256: 0f44774364aa822466b14bb8d8d78f499232a61d9f8590a03d3c67d03a73c96f
font_01_sfnt_off0000f934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF934 10596 bytes
SHA-256: 6fe381ee47b5f935ef9cf85cac29ae1ff0f6651d16e272a176bf97623eee6759

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