Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec351cce4d8a4596…

MALICIOUS

PDF

69.9 KB Created: 2021-04-09 04:24:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 7ef3c50307d98f454debdb8a02239214 SHA-1: 1ee03e03512b1df9b52a98c6eed421ad10e4d4e9 SHA-256: ec351cce4d8a45960dfff4c3489d02c009f0af3086605996c0b5af2d9cbae776
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a product review. The presence of an external URI indicates an attempt to redirect the user to a potentially harmful site, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=bersa+thunder+380+plus+review PDF link annotation
    • http://tejovotemikodes.getenjoyment.net/bass_guitar_lessons_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/ahbsTje/make_a_list_app_for_android.pdfIn PDF document text
    • http://roboludawu.mywebcommunity.org/fadaxominibagosumixari.pdfIn PDF document text
    • http://timinome.getenjoyment.net/present_value_annuity_factor.pdfIn PDF document text
    • https://cdn.sqhk.co/lisesemafo/f3gjM6Z/orion_locator_sos_beacon.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/7gighFx/classic_car_auctions_in_canada.pdfIn PDF document text
    • https://cdn.sqhk.co/dirotiweze/dshijL4/vikitesomabuxisak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/24099120387.pdfIn PDF document text
    • http://miduzusajaveg.rf.gd/android_10_release_date_note_9.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/monocentropus_balfouri_care_sheet.pdfIn PDF document text
    • http://pojudezafal.rf.gd/view_airtel_postpaid_bill.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e03bcf03-40c5-411e-85f1-6cb8493a0233/gugotopufi.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/how_to_learn_english_101.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5999cfcd-63ce-4fe9-b627-3b6cf77e4c23/how_to_focus_celestron_astromaster_90.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/zadoxolumanuxagukisa.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/fupazoviviliviwunedefodo.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/92463126949.pdfIn PDF document text
    • http://bibarixe.epizy.com/accurate_synonym_formal.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/relay_with_forcibly_guided_contacts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91970f1a-fb61-4891-8def-983e69430f0b/york_gas_furnace_model_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/64601006928.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_off0000d494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD494 5748 bytes
SHA-256: 27978b083a02c238b773333b46b770f6ca40d32e5dccaf558927fff412ab4d46
font_01_sfnt_off0000e829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE829 9896 bytes
SHA-256: 8bbe2dae5419b70d94897415717b96dd383360f9a0b23afa20cbba0451b33423

Open this report in the interactive analyzer, or submit your own file for analysis.