Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc9f1f5937637ca…

MALICIOUS

PDF

76.8 KB Created: 2021-05-11 03:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 48ce28607e5e664cc8a554762d89e6f3 SHA-1: c638764454de8ec717b5b067621ef2a9fc6a14d4 SHA-256: 2fc9f1f5937637ca3ad9fe4b1268c8070e42107ae6e94d73de4c3e72bf22f095
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The ML classifier also strongly indicated maliciousness. The document body contains garbled text, suggesting it's not intended for direct user reading but rather to obscure malicious content or URLs. Several embedded URLs were extracted, some of which are unknown or potentially malicious, indicating a likely attempt to redirect the user to a phishing or malware hosting site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://cdn.sqhk.co/xipitufekaru/FhdqjbE/37694422794.pdf In PDF document text
    • https://cdn.sqhk.co/navimoxa/jDzpidr/pixebixarulame.pdfIn PDF document text
    • https://cdn.sqhk.co/boxokozofe/TZ0wkLI/kolatifa.pdfIn PDF document text
    • https://cdn.sqhk.co/silijebutu/W2heVhg/50501602425.pdfIn PDF document text
    • https://cdn.sqhk.co/nasubivapu/Zhgiijc/adventure_backpack_mod_for_minecraft_1._12_2.pdfIn PDF document text
    • https://cdn.sqhk.co/legezuseg/df6Jwdt/idle_pocket_crafter_mod_apk_1._0._203.pdfIn PDF document text
    • https://cdn.sqhk.co/kajurineg/gyfxhJc/37383044598.pdfIn PDF document text
    • https://cdn.sqhk.co/tefegegesuxe/ig2r4Xx/5193580451.pdfIn PDF document text
    • https://cdn.sqhk.co/vadafepagij/jciiwKl/nusoben.pdfIn PDF document text
    • https://cdn.sqhk.co/golizojuw/6NgcOUX/caldera_forms_variables.pdfIn PDF document text
    • https://cdn.sqhk.co/jagapifa/hh8hbgh/suratejepalidosugixalig.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/jdgih6A/63334692524.pdfIn PDF document text
    • https://cdn.sqhk.co/tamaladafa/jjicjaZ/kuduremolopemuzoxovajufi.pdfIn PDF document text
    • http://devedilazabu.medianewsonline.com/xubezofunugosiverixo.pdfIn PDF document text
    • https://cdn.sqhk.co/tokafumotebi/ggEhfXv/infected_computer_definition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/dN4lCoxrs6M/wb?keyword=are%20russian%20volume%20lashes%20minkPDF link annotation
    • http://vigavanoxe.onlinewebshop.net/best_low_credit_score_credit_cards_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/monster_hunter_shara_ishvalda_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/460141b6-42f8-4aa6-86ab-2bfc97c169bd/fabedaxatogamuxowuxelezed.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/33313593533.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4b9e11e-8c97-45c6-9c14-355e84bf6b3a/arduino_nano_projects_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/kotidox/diagram_of_strategic_marketing_planning_process_download.pdfIn PDF document text
    • http://faxevimisosideg.myartsonline.com/35397873316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ad4b624-f9c7-4a92-82ba-3f5a06fc9ab1/zonekukupubuluwekeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3aa1907-b655-4a87-bb25-3cb902646608/28128456378.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6648083-b4ad-4d3c-b748-f15f7b1c1737/telotebejonozijijeg.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_off0000efe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE7 5040 bytes
SHA-256: 37b3275a34fc4ece9cc323583aeb9a826ba2c9fb25149ca803c6b1c9f9682e7a
font_01_sfnt_off000100e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100E1 10824 bytes
SHA-256: 2cdf57731378a16bb1f8f18f26308a2bbb8361c79a8ce69a8ccb732412cb3e3b

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