Malicious PDF — malware analysis report

Static analysis result for SHA-256 f04baf6ab68ef215…

MALICIOUS

PDF

93.5 KB Created: 2021-03-09 05:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 47b905a917840331b0776c43faaaa473 SHA-1: 86a6eae4a70217e7e32161c5234efc3423a481ed SHA-256: f04baf6ab68ef21566a2049de74a36051e757e72181e989b29908000714e6182
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/award?keyword=ascii+table+pdf+in+c PDF link annotation
    • https://cdn.sqhk.co/laruxibut/khbhb5p/bedanidiniru.pdfIn PDF document text
    • https://cdn.sqhk.co/pulununese/ceyKs2e/tycoon_football_manager_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/icsKgdN/mortal_kombat_10_scorpion_moves_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/votiwixuduzo/hajdzhb/11594147672.pdfIn PDF document text
    • http://gekalam.22web.org/christmas_songs_lyrics_and_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/baponakazu/5axhi95/dune_der_wustenplanet_2000_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/ajbgiDq/maxebagosopo.pdfIn PDF document text
    • https://cdn.sqhk.co/gebunemif/BDmYkhh/juvaluk.pdfIn PDF document text
    • https://cdn.sqhk.co/penavagalo/hbejIp2/rope_swing_silver_games.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wusone/5714631111.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/ziguvon.pdfIn PDF document text
    • http://joxowosikaze.rf.gd/top_songs_of_all_time.pdfIn PDF document text
    • http://zesubilav.epizy.com/how_did_england_establish_colonies_in_north_america.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/rejegetivavomofol.pdfIn PDF document text
    • http://paritoxo.rf.gd/loxabozabomuro.pdfIn PDF document text
    • http://xafazox.rf.gd/wivufalisizefixe.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/92962650118.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/pijodojuduzuxosanidunizej.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/vaziwatezoviv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E18 4860 bytes
SHA-256: 150e99eb288a2e8e93b9af5889fc551522f2d30d7a0af3690ed9d160c918e876
font_01_sfnt_off00011e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E9E 21148 bytes
SHA-256: e234a992faabb0886e9f83180cc926a274c80670a34f17e51cbcd3bf5e8fad3b
font_02_sfnt_off00015aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15ACA 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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