Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1162177879dc83…

MALICIOUS

PDF

81.2 KB Created: 2021-03-17 19:30:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 121da644586b18929f5d2f71fedfd844 SHA-1: 21816817dd2027c58dab79172ea2a2af5aad095c SHA-256: fb1162177879dc83c0805e5c63443734e5c666ac8a97fc567541990766c3e81c
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=formula+keq+chimica PDF link annotation
    • https://cdn.sqhk.co/laripikiwafo/ifijhin/19639921583.pdfIn PDF document text
    • https://cdn.sqhk.co/bowawugafux/oWBgiuo/crossy_road_secret_characters_party.pdfIn PDF document text
    • http://tomogorman.com/bijafumujirarigabewiksa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385424/normal_6029df4eac67f.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwunikuneg/yjccu90/81113910744.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472481/normal_604f74589d6cf.pdfIn PDF document text
    • http://seamanygau.best/95365870052j0yu3.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/8323addb-d15f-4d31-9c0c-e6b3f8fbdb39/latin_legal_phrases_funny.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10cd744a-79a5-4cbd-aed1-1ae9c62f4964/85572229840.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8bc7c92-48fe-44df-83d9-307ea6acc8a3/57562423655.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef7d6d09-58e0-42bc-9c97-c8bb65d18130/how_to_reset_toner_on_brother_printer_mfc_7360n.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/559a2b71-ab91-4c05-8c59-346d93862d8e/data_science_machine_learning_and_artificial_intelligence.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/696ee759-7785-4711-8ce2-da7103c8aa50/tewurunufopisokikulir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fbcb641-26df-4f71-899a-3a276fe0619a/how_to_change_a_belt_on_a_stackable_washer_and_dryer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3076f205-d383-49ae-a39e-1205341b2fcc/old_lawn_boy_lawn_mower_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c04bf46-0644-43b7-96f8-385b2916340e/fitokojaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33604a55-5ce5-45b7-8fca-196fc7c65a24/how_to_set_temp_on_electric_water_heater.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7f71eae-8b28-44cf-94a5-fac0fdb401f9/48475275220.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C3 5008 bytes
SHA-256: ef77e476950fa6569602970c5b17687f118bd63c2c36c0c947fc1c750399a236
font_01_sfnt_off0000f7a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A4 12688 bytes
SHA-256: 5421927f72861a903d529988ad876c21a6f72ed3947a177dd799e6d6a76bccb6
font_02_sfnt_off00012163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12163 16104 bytes
SHA-256: d2dc33a7b351c90f58d8bb9aa6f884b25c9cdebef013c13ca7ff652b69977405

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