Malicious PDF — malware analysis report

Static analysis result for SHA-256 089baa7833ccc01e…

MALICIOUS

PDF

76.1 KB Created: 2021-03-19 16:51:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 4bbeb7cbdbd9f277626f658baa3dd7b5 SHA-1: 5b9fc0f2136c9050725d423cdb8b32b129358726 SHA-256: 089baa7833ccc01e10337853bc994ff03fd7a777b71c6f498f93075e336df68e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://xajibur.ru/aws?utm_term=do+you+capitalize+job+titles+ap+style PDF link annotation
    • http://wurigebabisu.iblogger.org/how_to_manually_turn_on_hunter_sprinkler_system.pdfIn PDF document text
    • http://tafasizogir.22web.org/example_answers_to_common_interview_questions.pdfIn PDF document text
    • http://ruluzuzadol.mypressonline.com/how_to_start_an_observation_paper.pdfIn PDF document text
    • http://kejurudoji.medianewsonline.com/wobulonelazegetejowirip.pdfIn PDF document text
    • http://vukagife.iblogger.org/kegozetugikipikuz.pdfIn PDF document text
    • http://jamonomikusuka.22web.org/foxorekik.pdfIn PDF document text
    • http://zipujesilan.22web.org/xibivavi.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/pexodugosa/perdido_street_station_review.pdfIn PDF document text
    • http://gotazuvibidok.epizy.com/bexar_county_jail_release_information.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/why_is_my_panasonic_phone_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/keep_safe_app_for_iphone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d65055a-5d48-4b61-8e96-d1c52d42f19e/star_trek_discovery_season_3_episodes_release_date.pdfIn PDF document text
    • http://tekubone.epizy.com/lady_bird_johnson_grove_trail_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67baa03b-e6ae-455e-91e0-17abc50226ad/physics_questions_and_answers_for_class_9_cbse_force_and_laws_of_motion.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/bollywood_songs_app_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/bubble_shooter_saga_2_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/32263737463.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/freezer_not_cold_enough_in_hot_weather.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/15726940760.pdfIn PDF document text
    • http://sajutab.rf.gd/tepesirozudu.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/navy_advancement_exam_dates_2021.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/58633700734.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_off0000ecb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB2 5196 bytes
SHA-256: 7a6b51c28bbb5bf85156ea7422b9bdacc2632a02d8a5583d79387989d445bac2
font_01_sfnt_off0000fe8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8C 10568 bytes
SHA-256: 0e88afc4d9d4025db1e3325ee6df8f14fa860ed5fe22bb3d21304d47b739c004

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