Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b0372eb94acf6d1…

MALICIOUS

PDF

77.1 KB Created: 2021-03-08 22:11:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 6e0748152c878f049f593bbfddf57cdc SHA-1: a0bc23333b475a8a6bc531065bf648af19784a19 SHA-256: 9b0372eb94acf6d1d46009db0e6b067a1d064b9997af5526cdcce6b96679c4a2
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body appears to be malformed or obfuscated, but the presence of the external URI strongly suggests a malicious intent to lure the user to a compromised resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://dugedepap.ru/award?keyword=accordance+shelly+crane+pdf+italiano PDF link annotation
    • http://bijakolonan.iblogger.org/vedosafuveboba.pdfIn PDF document text
    • http://puvinizozibejir.mygamesonline.org/kangertech_evod_variable_voltage_1600mah_manual_battery.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/how_many_books_in_the_shade_of_vampire_series.pdfIn PDF document text
    • http://xezakekefeba.iblogger.org/31298618870.pdfIn PDF document text
    • http://fufivepibagat.iblogger.org/bsplayer_android_subtitles_location.pdfIn PDF document text
    • http://biwedujurar.mywebcommunity.org/photosynthesis_lesson_plan_middle_school.pdfIn PDF document text
    • http://gagivukamuw.getenjoyment.net/xbox_live_issues_reddit.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/87662354558.pdfIn PDF document text
    • http://nevinidonet.mywebcommunity.org/rokowagonimolorif.pdfIn PDF document text
    • http://mujudesuxiropa.sportsontheweb.net/how_to_seal_bags_with_foodsaver.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/xfinity_remote_to_control_lg_soundbar.pdfIn PDF document text
    • http://zefoxerufizogo.22web.org/bajusilewewaxelexo.pdfIn PDF document text
    • http://jokaxamilobizal.22web.org/vubukiwudidevamud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://leribilif.rf.gd/popivegadinu.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/cafe_bazaar_apk_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/66912275413.pdfIn PDF document text
    • https://s3.amazonaws.com/tafogusegabomu/calendario_escolar_2020_sep_media_superior.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/us_citizenship_questions_and_answers_2019.pdfIn PDF document text
    • http://rewuwuja.onlinewebshop.net/98142542768.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/82008168717.pdfIn PDF document text
    • http://fufabufitilaf.epizy.com/gifenutekel.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/acceptable_forms_of_identification_for_flying_2020.pdfIn PDF document text
    • http://tanasebebibe.epizy.com/zuzagurix.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/pakibogoratojenimowutezaz.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/92505239491.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_off0000f151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF151 5336 bytes
SHA-256: 2a4b61cf190a11c015ebf8664bf3269f9b34a20576f7227bd91771c8f1903ff2
font_01_sfnt_off0001037c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037C 10300 bytes
SHA-256: 6cb7aecf0ecc4fb62433148e03a1d6d690a26e3e3ff7efc369598f38c364ca0e

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