Malicious PDF — malware analysis report

Static analysis result for SHA-256 46519b02b824d082…

MALICIOUS

PDF

86.1 KB Created: 2021-02-17 18:30:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: a1999bd06ee52ecaaeeb6fa680b43647 SHA-1: d6b83210ce4d8c92de0da200e3f171d443a7b93a SHA-256: 46519b02b824d082e73c8a8dcdc8274fb4e196a5b2268200db38489efb018b68
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'jottigo.ru' suggests the document is designed to redirect users to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or malware distribution lure.

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://jottigo.ru/aws?utm_term=how+many+different+atoms+are+there+in+a+compound+brainly PDF link annotation
    • http://copyrightnotices-form.com/1138706369ojqsr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419820/normal_5fd09bc84dab6.pdfIn PDF document text
    • http://wownatural.fun/maniwazai6xtf.pdfIn PDF document text
    • http://instasale.company/english_grammar_modal_auxiliary50h3t.pdfIn PDF document text
    • http://dithetsen.xyz/donde_cruza_el_tropico_de_cancer_en_mexicoh6qrq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368982/normal_5fc5ada4c94e9.pdfIn PDF document text
    • http://chelobaka.space/233017671487p63h.pdfIn PDF document text
    • http://copyright-securityx.com/614565340988ijoe.pdfIn PDF document text
    • http://nesobaka7.xyz/kesixuguwobovasdbt6x.pdfIn PDF document text
    • http://gachihyper.xyz/67598825761mse18.pdfIn PDF document text
    • http://winoraama.site/the_hat_pastrami_nutritional_informationbc0g0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470399/normal_5fc748aadc1f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451363/normal_5fce92445aea6.pdfIn PDF document text
    • http://tvoeobrazovanie.fun/iv_convenio_de_ginebra_1949vwkfa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/jujiralixebese.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/what_is_the_importance_of_academic_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/wezokulosapoxu.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/simple_assured_shorthold_tenancy_agreement_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/nofuguketemenimetawegemib.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/13249698798.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/47643546780.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/bebeduzufim.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101D5 5572 bytes
SHA-256: 4ec76e0bc8d1e43a60ea3ab7b9e0f993fe0aaa4afb50e98920a834473419b571
font_01_sfnt_off0001149f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1149F 11472 bytes
SHA-256: 70d1c976ff97c4b5027c7b7e03e4120bc05f9d490b9df236ae05129d391bb0a6
font_02_sfnt_off00013be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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