Malicious PDF — malware analysis report

Static analysis result for SHA-256 948ffc2c181f9087…

MALICIOUS

PDF

79.9 KB Created: 2021-03-15 23:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f13a3533db4278827d0d9c950a71cee8 SHA-1: 67441a19e01efaebe9c31be756b0105a0ea235a5 SHA-256: 948ffc2c181f9087c42949250edd7c9a20cf56b587f1949337d15ff18216bb99
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a malicious domain, likely intended to trick the user into downloading further malware or visiting a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

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://jacksth.ru/wix?keyword=someone+named+eva+pdf+free
    • https://cdn.sqhk.co/jevipugirofi/ifTnjgI/lixifoxulipitexu.pdf
    • https://cdn.sqhk.co/fovipobex/cdMjHhx/kika_edgar_e_hija.pdf
    • https://cdn.sqhk.co/bujomuvi/jghCdhf/bigg_boss_3_tamil_free.pdf
    • https://cdn.sqhk.co/takoxuwal/aha5Yie/19241879692.pdf
    • https://cdn-cms.f-static.net/uploads/4377407/normal_6040bef21abf2.pdf
    • https://cdn.sqhk.co/vufisolepu/2hbbiaV/word_collect_cheat_level_544.pdf
    • https://cdn.sqhk.co/liripudeb/bKhhshi/89374388426.pdf
    • http://fijixedi.22web.org/bawizinowitenume.pdf
    • http://wevutibena.22web.org/gumon.pdf
    • https://cdn-cms.f-static.net/uploads/4465263/normal_60216661b4d64.pdf
    • https://cdn.sqhk.co/jimavidozeze/cJohhij/stay_alive_reprise_instrumental.pdf
    • https://static.s123-cdn-static.com/uploads/4380858/normal_60011535e75f7.pdf
    • https://cdn-cms.f-static.net/uploads/4471109/normal_6043eb885d6b0.pdf
    • https://cdn.sqhk.co/molivovuki/je7ihb4/billie_eilish_lyrics_everything_i_wanted.pdf
    • https://cdn-cms.f-static.net/uploads/4456391/normal_601db670c3cd9.pdf
    • https://cdn.sqhk.co/buzulexoxuve/VhilMge/39296580998.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://debetofewozuri.epizy.com/32996190938.pdf
    • http://daforewepon.epizy.com/what_is_jeet_kune_do.pdf
    • http://vigejufad.rf.gd/baabul_movie_song_mr_jatt.pdf
    • https://uploads.strikinglycdn.com/files/5b3582af-00b4-45a4-bf75-23dcc33f8bc8/m3_h_to_ft3_min.pdf
    • http://tesusaruva.epizy.com/amazing_spider_man_2_apk_game.pdf
    • https://uploads.strikinglycdn.com/files/987cafd2-4a0e-484f-aac3-395c9f7270de/what_is_aha_cardiac_diet.pdf
    • http://gedikoti.epizy.com/bhakti_bhakti_photo.pdf
    • https://uploads.strikinglycdn.com/files/40ea02b1-a06f-4d87-a686-05227e2ac63a/44326695796.pdf
    • https://uploads.strikinglycdn.com/files/7c75a43d-2c24-43e2-93c7-817459d128a7/el_juego_del_angel_libro_completo_gratis.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_off0000f91c.bin
50a723a62801659e2f62c9c4eec16ea308fec2234d7a67d6f89336b12bd50e02		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF91C 5140 bytes
font_01_sfnt_off00010a89.bin
dfe9850ac1330893519542dac6cec55f277e99cfd61c73ef0fd1ace9a5a17dd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A89 11328 bytes

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