Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7403255c8670da0…

MALICIOUS

PDF

98.9 KB Created: 2021-03-28 08:55:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 0db7ca96dd55473eb6a7557a71957e11 SHA-1: 2962ce015959b35f21a2d82a9b6c9703aed94c7b SHA-256: c7403255c8670da093a0291c334e0ed504ecf892264d40ef80c1db98a28dcefd
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to a suspicious domain, likely intended to host a malicious payload or phishing content. The document body, though heavily obfuscated, suggests a lure related to 'the bfg script pdf'. No scripts were extracted, but the presence of external URIs and the overall detection suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/strik?utm_term=the+bfg+script+pdf PDF link annotation
    • http://verifybadgehelp.com/cobra_microtalk_settingssu0rj.pdfIn PDF document text
    • http://lozomaneje.getenjoyment.net/the_kiss_quotient_book_download.pdfIn PDF document text
    • https://cdn.sqhk.co/lajawawinu/igJgwf0/number_of_exoplanets_with_water.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/20645498037.pdfIn PDF document text
    • https://topuzuxet.weebly.com/uploads/1/3/0/7/130739133/fagune.pdfIn PDF document text
    • http://savadaqwe.space/skema_patofisiologi_pneumoniakqwnn.pdfIn PDF document text
    • https://cdn.sqhk.co/livaxipovage/hddjfii/gravity_falls_cast_fat_guy.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/IDjd9gj/frozen_shoulder_rom_exercises.pdfIn PDF document text
    • https://sovurides.weebly.com/uploads/1/3/5/3/135349611/5713996.pdfIn PDF document text
    • http://tasigezagu.scienceontheweb.net/690902565.pdfIn PDF document text
    • https://bulugigedi.weebly.com/uploads/1/3/4/7/134714886/dujalutet.pdfIn PDF document text
    • http://dehydratedoriginalgoodness.com/savuriweloteku0rt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fugufaza.myartsonline.com/duzogixojupunelukagizili.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/certified_scrum_master_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/96008747043.pdfIn PDF document text
    • https://247e77cc-5367-4382-8586-7c5891409f42.filesusr.com/ugd/2dbf5a_185a7f56ae8b4438a01527f4824127c8.pdf?index=trueIn PDF document text
    • https://018ae6bf-5b6e-4bf7-bb5f-89503284f855.filesusr.com/ugd/b7931c_b3a6f2c10a224997b4ea1f5ebca41dde.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dosipive/acs_works_cited_page_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/dht22_temperature_and_humidity_sensor_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/zibojaminazopopub.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_off00014753.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14753 5264 bytes
SHA-256: 14be0c52521f2421b10fc505337ec0ac30700d288e02176a66152df0ae36ed7a
font_01_sfnt_off0001593b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1593B 10728 bytes
SHA-256: ecb4724265a1acdd02a00b1cb6623b5d6ced98d0826af9e385a71ee9091b29ed

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