Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17210649d6e2500…

MALICIOUS

PDF

77.1 KB Created: 2021-03-02 13:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: fbeee3bacbecf03f1da833911ca36d8a SHA-1: de996258fe8fb84cf28cd1e22b34ea5dd5821adf SHA-256: b17210649d6e2500613e6724d0c80ade4966882a6d68f2e5064e72f185b29a5f
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 URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though partially corrupted, suggests a lure related to Mexican history, indicating a targeted phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/strik?utm_term=cuales+fueron+los+problemas+que+tuvo+mexico+despues+de+la+independencia PDF link annotation
    • https://cdn.sqhk.co/nezafomura/WieP6Su/tiny_little_racing_2_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuwutitaw/idhanhh/gafeka.pdfIn PDF document text
    • http://falisekivi.iblogger.org/rapabosasuzofapuvunep.pdfIn PDF document text
    • http://jigatinapa.22web.org/indeks_pembangunan_manusia_metode_baru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414852/normal_5fe799bc458f7.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/jeheUgj/try_free_fire_online.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajura/hhhhahb/widebomob.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/gateme/hfliche_absage_angebot_formulieren.pdfIn PDF document text
    • https://s3.amazonaws.com/jofunozuzof/30729015468.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/fukijiniboturedixemip.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/android_10_for_nokia_7_plus.pdfIn PDF document text
    • http://kifavorufodib.rf.gd/dean_koontz_books_in_order_jane_hawk.pdfIn PDF document text
    • http://xunawikavamenu.epizy.com/14030856810.pdfIn PDF document text
    • http://magoravir.epizy.com/84635001996.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/cost_budget_estimate_template.pdfIn PDF document text
    • http://pinakebe.rf.gd/acronis_backup_recovery_12._5_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/fotuzusuku.pdfIn PDF document text
    • http://xeroxofebamuwu.rf.gd/interrogative_worksheets_for_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/guviliturepumewigunad.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/beginner_bible_study_guide_gracelink.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/19776359822.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_off0000ea56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA56 5600 bytes
SHA-256: 09bbd30940f5b0d9fb1607bcf3653bce256512c5e39cf0724a1f6c43052aeea6
font_01_sfnt_off0000fd46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD46 11984 bytes
SHA-256: 3b1d39e2ffb954ee6604de17d32583db81d7bcc447246156f085e8625f1fb888

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