Malicious PDF — malware analysis report

Static analysis result for SHA-256 820331c7ee4ad0ad…

MALICIOUS

PDF

80.6 KB Created: 2021-03-24 04:00:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 62ab08d6ad2f8a05f84c997b673a2447 SHA-1: 9d95d48fabad98f07fbea9c7f373d61a2c098e48 SHA-256: 820331c7ee4ad0addcb67d72feeca1ca6ba862d5a6620175f8c6fcc2eb29dd86
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 0.9990

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://ponafet.ru/award?keyword=pathetique+sonata+2nd+movement+sheet+music+pdf PDF link annotation
    • http://slampochka.ru/oklahoma_unemployment_benefits_numberul1zj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481280/normal_602731536a778.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479433/normal_601ed85b33387.pdfIn PDF document text
    • http://raffle.website/braeburn_5020_programmable_thermostat_manualpzn95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489716/normal_6037c7d37393c.pdfIn PDF document text
    • http://doweryklkq.space/alkane_nomenclature_worksheet_with_answersa54l9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489732/normal_6029440dc5054.pdfIn PDF document text
    • http://vnatural.space/proform_505_cst_treadmill_weight_capacitysd1xj.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/mipizaju/bezogijovebukojeliwulut.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/dotojovirufopodawapam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/110788a7-f131-4dbb-9260-520c9c13850d/38096491793.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c8f8dd3-65d1-4901-9583-a4cb2057577e/viremogobogimujupusudedik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71f52aac-d662-4a04-85f6-c0e6609a63ca/honeywell_p_8000_thermostat_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/defenegujufenolamabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05441973-f27b-49bb-a49f-5f45aefb1896/gajuwewiriwegize.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/honeywell_germ_free_cool_mist_humidifier_cleaning.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/citizen_eco_drive_skyhawk_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d08e014f-313e-4a2b-aab5-9e17cf090715/craftsman_gt3000_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/bhagam_bhag_full_movie_720p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/370d834c-8d18-4d0f-bb4a-9dbefb447e7f/benifesusutejilesofag.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/physics_formula_for_time.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/676aca89-0950-4243-a1ea-da59263a9492/ribanosifilifixopalolupo.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/92134708326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/395a173d-ace1-4c68-b071-db069a27c666/tuxowikola.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/the_health_benefit_of_bitter_leaf.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_off0000e9b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B2 5468 bytes
SHA-256: 70427f19612b2f10733bfe6447cf6a897c975e87ebfcc1ad256893e492ae6872
font_01_sfnt_off0000fc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC28 12656 bytes
SHA-256: af999dfd12ffc1edc627b5fb43ad5d1074e6a624778e6dccccaa09b8932f6c48
font_02_sfnt_off00012640.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12640 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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