Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ec90d2f5f6157d…

MALICIOUS

PDF

79.4 KB Created: 2021-03-04 23:44:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e6d4aea77c42339199b9468e97461189 SHA-1: bd66a7132b7b44a646c84a95589931385e569a45 SHA-256: 45ec90d2f5f6157d496c2a8d2424aca9be665055bcd0322c4177a6d06620980d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of phishing or malware distribution. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs suggests an attempt to redirect the user to a malicious site, likely for credential harvesting or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://baarspo.ru/award?keyword=zerolemon+lg+v20+battery+case PDF link annotation
    • http://vurovolapoza.mygamesonline.org/can_you_break_your_lease_due_to_covid_19_nyc.pdfIn PDF document text
    • http://sokegex.mywebcommunity.org/will_there_be_an_ncaa_tournament.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/ihgd3BQ/ganipularunofo.pdfIn PDF document text
    • https://cdn.sqhk.co/kagitenoru/agiZchd/puppp_pregnancy_rash_remedies.pdfIn PDF document text
    • http://fexaranotoxepig.22web.org/black_and_decker_double_flip_waffle_maker_instructions.pdfIn PDF document text
    • http://xifitubi.22web.org/criminal_justice_system_reform_framework_queensland.pdfIn PDF document text
    • http://gisoboxizaza.mygamesonline.org/vakobuvonawitu.pdfIn PDF document text
    • https://cdn.sqhk.co/nefikelifu/UTshgli/imagzle_an_image_based_quizlet.pdfIn PDF document text
    • https://rewazute.weebly.com/uploads/1/3/4/6/134648352/9405220.pdfIn PDF document text
    • http://fobativ.mywebcommunity.org/85345014524.pdfIn PDF document text
    • http://larebalin.mypressonline.com/15751898049.pdfIn PDF document text
    • http://mujezixebu.22web.org/86293188540.pdfIn PDF document text
    • https://jabibodusap.weebly.com/uploads/1/3/2/6/132681053/dakirojuwuvexi.pdfIn PDF document text
    • https://wirimodarezekas.weebly.com/uploads/1/3/5/3/135314182/fuwiroporu.pdfIn PDF document text
    • http://mitatizizuje.mypressonline.com/9350016995.pdfIn PDF document text
    • http://ravigimojamel.mypressonline.com/31540168555.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/lixasifasi/openstax_chemistry_textbook_answers.pdfIn PDF document text
    • http://lumosaneja.onlinewebshop.net/39427504240.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/bed_bug_marks_on_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/vidmate_2018_new_app_for_android.pdfIn PDF document text
    • http://pexaniruvuwuwe.rf.gd/24893804103.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/dismissal_during_probationary_period_template.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/future_fight_shadowland_guide_2019.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/ghost_in_the_machine_saying_meaning.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_off0000f804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF804 5652 bytes
SHA-256: 23df41b274323ac460a2a19b371550bccd85e23af1acb752817a4569244907be
font_01_sfnt_off00010b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3E 10732 bytes
SHA-256: 6a1b5e9448dd890579820c47dc5a1ab63f54f66641bb76e1acfb9a14e6feb5be

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