Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9ec7a08e0c551a…

MALICIOUS

PDF

81.6 KB Created: 2021-03-28 17:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d65fe9d565769bd38dfc67856546d8b0 SHA-1: 584ace1d569108a0940a98ca8e05706ca8eb21ff SHA-256: eb9ec7a08e0c551a6b41e2da695ba1ac3925313e957d5cc20653289f23cc8d62
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI and the overall classification suggest a phishing attempt disguised as a technical document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/123?utm_term=cisco+catalyst+9200+configuration+guide
    • http://dakonoge.iblogger.org/xukupipagux.pdf
    • http://wogivodugakovek.mygamesonline.org/undrip_canada.pdf
    • http://zipafaxelati.sportsontheweb.net/herbs_and_spices_guide.pdf
    • http://kazexajisodibu.medianewsonline.com/how_to_relieve_sharp_gas_pain_during_pregnancy.pdf
    • http://jesemozoki.22web.org/fire_camera_mini_hd_1080p_night_vision.pdf
    • http://rewutudot.iblogger.org/nanagiwapitesikot.pdf
    • http://ximuvitu.iblogger.org/gastroenteritis_bacteriana_aguda.pdf
    • http://xumarageli.22web.org/fubugolulinag.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mowumurukilada.rf.gd/tulufuvininepewodalinutot.pdf
    • http://todidetiped.onlinewebshop.net/roxejoku.pdf
    • http://mowipube.epizy.com/52523307732.pdf
    • http://medozazi.epizy.com/21697406073.pdf
    • https://uploads.strikinglycdn.com/files/0277a41d-850e-436a-a31a-d3a14b116248/fovasawutunejawepelejexol.pdf
    • https://uploads.strikinglycdn.com/files/0c1b35f6-6cdf-42b0-8ddf-7b9b994ee543/rules_of_attraction_simone_elkeles_book_review.pdf
    • https://uploads.strikinglycdn.com/files/60294e7e-f4ed-4b21-9af2-8a4760a1998b/29465352196.pdf
    • https://uploads.strikinglycdn.com/files/ca771ca0-7f45-4ebd-8462-1809bc53cad0/how_do_i_know_the_alternator_is_bad.pdf
    • https://uploads.strikinglycdn.com/files/bb02da38-d2c2-47df-bab2-035043490e0d/beyond_enemy_lines_2_game_wiki.pdf
    • https://uploads.strikinglycdn.com/files/61ae1ec7-10d8-4099-9e89-5470a0209362/what_kind_of_jobs_are_available_in_the_navy.pdf
    • http://kedisijusa.onlinewebshop.net/ielts_reading_listening_score_chart.pdf
    • https://s3.amazonaws.com/jixerubowi/rosary_for_the_dead_prayer.pdf
    • http://befabeme.epizy.com/what_are_the_basic_principles_of_feminism.pdf
    • http://lekaleramitogal.rf.gd/39582721289.pdf
    • https://s3.amazonaws.com/zexozavo/86526073129.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102e3.bin
650392c08b25001423cdcbb8084d31e50c220e324d33d0e54d7aeb7bf1154e1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102E3 5624 bytes
font_01_sfnt_off0001161a.bin
1be574c88dec1c0ea8416f5634bfeef6871b929dfca39c8e38d5d435fe54f13e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1161A 10164 bytes

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