Malicious PDF — malware analysis report

Static analysis result for SHA-256 be689f5724624405…

MALICIOUS

PDF

71.8 KB Created: 2021-02-07 14:56:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 172380692d67fea8f6cbe644f064c8d7 SHA-1: 67a8d41aa646cb11bca0a64d6fdaea8a18fc3dba SHA-256: be689f572462440568b03bea1cefcec3283dbb4be2e3cfa13d57b5b7fb17f594
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to movie search results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/aws?utm_term=south+movie++site+hd PDF link annotation
    • https://cdn.sqhk.co/xojelumegasi/U55TQhb/38354379293.pdfIn PDF document text
    • https://cdn.sqhk.co/fenozidu/1Bhjhcd/restaurant_story_2_gem_recipes.pdfIn PDF document text
    • http://gijokamamijole.iblogger.org/brothers_movie_filmywap._online.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/ggc9jfH/88780472981.pdfIn PDF document text
    • http://bogavevi.22web.org/49202940971.pdfIn PDF document text
    • https://cdn.sqhk.co/taduzotul/KWhiGje/nogafusozojaris.pdfIn PDF document text
    • https://cdn.sqhk.co/tizudukokeni/RXBjhin/stickman_soccer_2014_download_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/gjGhegd/todolist_app_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/nupasoxure/3gcis63/33774508840.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/dakebesuvum/42356832680.pdfIn PDF document text
    • http://kuporalegumema.epizy.com/lolaxipodamamuminomabuvud.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/94394433043.pdfIn PDF document text
    • https://s3.amazonaws.com/dutuzanob/abrsm_singing_diploma_syllabus_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/free_annual_credit_report_and_fico_score.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/adobe_acrobat_reader_dc_italiano.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/8146969000.pdfIn PDF document text
    • http://wejivitekep.epizy.com/please_answer_the_phone_song.pdfIn PDF document text
    • http://nufudojor.epizy.com/36668091880.pdfIn PDF document text
    • http://sapakebozo.rf.gd/gawexuxesokudake.pdfIn PDF document text
    • http://disukifas.epizy.com/viwamupafezeja.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_off0000dd32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD32 4888 bytes
SHA-256: dd83d340cf56d3f20b245d243123b23e77bd4e7088a602e26c111d624752a372
font_01_sfnt_off0000edb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB5 10708 bytes
SHA-256: b3e82c50665c6134d1d556b55dfbaaaf9ccba7e7eb0f51bffa9187b49578afad

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