Malicious PDF — malware analysis report

Static analysis result for SHA-256 b633c6a395e0b124…

MALICIOUS

PDF

94.7 KB Created: 2021-01-21 20:09:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 142fb4f990656ae126e40e825cdd0ebe SHA-1: 9c9822f1f7a8fb473770c308f8a43ec8aa734b02 SHA-256: b633c6a395e0b1243dd0f2512c5bec78cca6a8b61fa506e42a4a9d23b40920a9
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 malicious site. The document body, though heavily obfuscated, suggests a lure related to 'protection from evil and good holy water', which is a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of external URIs and the overall malicious verdict strongly indicate an attempt to compromise the user.

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://traffnew.ru/123?utm_term=protection+from+evil+and+good+holy+water PDF link annotation
    • https://cdn.sqhk.co/mofijovelu/ghXegcQ/togidokulatatowigebubudil.pdfIn PDF document text
    • https://site-1175348.mozfiles.com/files/1175348/pop_songs_clarinet_sheet_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/derebeduno/vDjfVQv/farm_heroes_saga_games_free_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/jhceib0/93405356743.pdfIn PDF document text
    • http://zakababonedip.iblogger.org/atharva_video_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/gejbMij/facebook_stickers_on_whatsapp_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/linigurep/hi9jjRF/46021933177.pdfIn PDF document text
    • https://cdn.sqhk.co/pozuwifofub/jhifhcn/clownfish_voice_changer_xbox_app.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/banner_editing_material_png.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/61786532941.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/c_s_spiritual_songs.pdfIn PDF document text
    • http://duvufewitopemaw.rf.gd/resident_evil_4_apk_obb_apkpure.pdfIn PDF document text
    • http://vodupuginotipir.rf.gd/82155843775.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/switch_lite_vs_switch_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/vijiwigiwosufajoziniposa.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_off00012492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12492 5512 bytes
SHA-256: a9de07da1b568d2c6174a820d4432b6f1f167b988a1dbc850032da00010b5dff
font_01_sfnt_off0001373f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1373F 2824 bytes
SHA-256: efe381af57f5555a6d9ee190c32d5702adca7d3001bb1f7881c78fa5a51716e2
font_02_sfnt_off00014332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14332 12628 bytes
SHA-256: 13a27b370d73f8983e3b2a5fbc575b2d944c71752ae3156e9a755b6171a81e4f

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