Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e57135307aec3d…

MALICIOUS

PDF

94.2 KB Created: 2021-05-15 02:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a4bb4407d2d77b5bea4d9bf09086158e SHA-1: d85070f605ba1548db070691d0901a9e26cd8ace SHA-256: a6e57135307aec3d46c71a1d1ef321a89b31438b04953fe9d65464e1c71ff015
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 0.9988

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://pelibifir.ru/strik?utm_term=all+the+bright+places+reviews+movie PDF link annotation
    • http://mofonuf.medianewsonline.com/75288746162.pdfIn PDF document text
    • https://cdn.sqhk.co/pesarukogi/TIIjagi/transparent_acrylic_sheet_designs.pdfIn PDF document text
    • http://robertferrell.net/72738228198iw28o.pdfIn PDF document text
    • http://fragcups.com/75883423295mjd6s.pdfIn PDF document text
    • http://fipizilemuwob.medianewsonline.com/supaleretitejigunineg.pdfIn PDF document text
    • http://bestgirl69.com/52443158941cfisn.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.website/can_t_catalina_installer2ksm0.pdfIn PDF document text
    • https://cdn.sqhk.co/wolebiduju/ajeiagi/verizon_business_pay_my_bill.pdfIn PDF document text
    • http://kebenoda.scienceontheweb.net/fifilasusi.pdfIn PDF document text
    • http://reduslim-ufficiale.website/descargar_dragon_ball_shin_budokai_3opycg.pdfIn PDF document text
    • https://cdn.sqhk.co/torujazelome/eC0H9if/seattle_pinball_museum_price.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/saziwijaxodav/sadayo_kawakami_confidant_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e764b62b-7349-4b09-9be6-f8adf4a1e30d/ht2000_motherboard_drivers.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/2358737188.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/32652453644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/691d8c89-6e5b-4a8d-bbfb-1e709a0cc958/febajabusiz.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/19384788781.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef34862d-664a-4b43-99a0-2f07bedcbe4d/education_needed_public_relations_manager.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc9e043c-b089-4385-a364-fd778b710f65/51127479332.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/555e4cec-d6c8-4fdc-b8f9-fc0808538a69/what_country_is_the_richest_per_capita_in_the_eu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d81f14c-a0d3-459d-bf5f-ae7566eaf3c2/1915343864.pdfIn PDF document text
    • http://nupuzawov.onlinewebshop.net/is_omron_blood_pressure_accurate.pdfIn PDF document text
    • https://s3.amazonaws.com/wowonesoribu/activity_based_costing_example_problem_solution.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/ahbap_platformu_ba.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_off00012588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12588 5308 bytes
SHA-256: cb18612d6593b1e342d38837ff695190d7fdead5f5f571d4003c746f59d12b23
font_01_sfnt_off000137a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137A5 11244 bytes
SHA-256: 7c99bfef59f899a59515f6925d8dd58623dfcaca84c2b7a2134035e8549252ba
font_02_sfnt_off00015d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D10 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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