Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6839e86f5286ab…

MALICIOUS

PDF

114.6 KB Created: 2021-03-18 06:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e457ab9d765e457b89a9ed8204248ac8 SHA-1: 3712d5e2ed866df72e73a64ad9434346cf41c860 SHA-256: 9d6839e86f5286ab172c7a4ff8ef43aa469b4eacc69d4798bfc85ade90a9181b
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 0.9974

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://crophysi.ru/123?utm_term=los+libros+apocrifos+del+antiguo+testamento+pdf PDF link annotation
    • http://flathead.us/micrometer_screw_gauge_simulation6jpbl.pdfIn PDF document text
    • http://particuliers-societegenerale.xyz/united_airlines_carry_on_baggage_size_and_weights56wi.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/gE0sieI/51883890046.pdfIn PDF document text
    • https://cdn.sqhk.co/terodekijur/cWr6if8/nintendo_switch_parental_controls_forgot_pin.pdfIn PDF document text
    • https://cdn.sqhk.co/dagosasojo/TXhiigo/72276513557.pdfIn PDF document text
    • https://cdn.sqhk.co/weralutofa/VcMT6t6/bunilofijovolimixifimusav.pdfIn PDF document text
    • http://copyright-rules-help.com/amapiano_dance_tutorialftjyk.pdfIn PDF document text
    • http://help-nanny.site/tezereduwkzpy4.pdfIn PDF document text
    • http://pesale.pro/how_to_edit_logo_in_wordpress_themeev332.pdfIn PDF document text
    • https://cdn.sqhk.co/benanejufa/FijfWgd/seredu.pdfIn PDF document text
    • http://sosyaltakipcipanelin.com/genetizudoze3rqgg.pdfIn PDF document text
    • http://idealslim-italiaofficial.site/lumanifitobajatayqwuo.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/kujapomib/visox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca9b91dd-888e-403b-bd94-9c1b73693b80/15053663179.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a38b32c-6aa0-4402-b329-4467d2c4b239/how_many_carbs_in_a_taco_bell_steak_soft_taco.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/what_is_the_definition_of_information_communication_technology.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/gejala_atonia_uteri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6220669f-c5a3-4601-a8d2-378fc85ae511/the_now_habit_procrastination_log.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/544384a0-8b10-470c-80be-920e6c35ae9e/37707136463.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/blackdecker_st9000_6.5_amp_14_inch_electric_string_trimmer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da47fbb7-a6c5-405e-81c9-0a083fa75e3c/7955302311.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/machine_learning_with_python_github.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/type_1_and_type_2_chiari_malformations.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/casuarina_glauca_prostrate_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/washington_state_basketball_record_2016.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_off00016277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16277 5440 bytes
SHA-256: 0f5aefbdb1876b17b3c8358186d20bd7c5e5cee83b0dd11e187c2f9aae186ccb
font_01_sfnt_off000174d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174D6 18752 bytes
SHA-256: 7b3345218d55d43b4f446d1cf8b773383f39e7dff166b84a50142766ff814ca2
font_02_sfnt_off0001abf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ABF2 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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