Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba200e831a0966d…

MALICIOUS

PDF

87.2 KB Created: 2021-03-04 19:58:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: dff243a48e232c7e9b237788bdc775f0 SHA-1: 3bd95fcd17a089cc8ede6ce0abfc636f6e7033e6 SHA-256: 0ba200e831a0966d5581d15d2f94345465b64e8098846794a81e03b0d73dd79f
96 Risk Score

Malware Insights

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

The sample is a PDF document that contains an embedded URL, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, appears to be a lure related to 'Dale earnhardt jr autograph value', directing the user to a suspicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=dale+earnhardt+jr+autograph+value PDF link annotation
    • http://bimoriz.getenjoyment.net/moguzivuzugidotuwosurik.pdfIn PDF document text
    • https://cdn.sqhk.co/karadirimose/jlcMeWK/39612212527.pdfIn PDF document text
    • http://nibajafij.medianewsonline.com/how_long_after_working_out_do_you_start_to_see_results.pdfIn PDF document text
    • https://cdn.sqhk.co/mopomotop/bigieij/la_reina_del_sur_season_3_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/9iiYieg/wordscapes_search_rules.pdfIn PDF document text
    • http://degakak.sportsontheweb.net/dias_festivos_en_mexico_2020_que_no_se_trabaja.pdfIn PDF document text
    • http://lenulari.mypressonline.com/26642661610.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefiruxat/1ojggjJ/79159479941.pdfIn PDF document text
    • http://zodelem.mygamesonline.org/que_significa_en_el_diccionario_la_palabra_refulgente.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/taturi/cious_tious_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/35615035615.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/42334147935.pdfIn PDF document text
    • http://fuvuvadut.onlinewebshop.net/40510636694.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/51963481829.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/photoshop_cs4_shortcut_keys_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60902f03-32b5-41bb-8348-7c81def9b448/zuturisisewumeg.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/2721621770.pdfIn PDF document text
    • http://sudexixurijaxoz.atwebpages.com/native_instruments_maschine_mikro_mk3_midi_controller.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/94583052426.pdfIn PDF document text
    • http://nibopinalilabaj.onlinewebshop.net/how_to_apply_a_large_window_decal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca7d99ca-6446-4d06-a93e-1f74edb0aa49/msi_gtx_970_4gb_oc_benchmark.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9229a4a-48af-4bf9-8203-fd17ac8a5e85/24225596222.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f2611781-8ea4-48dc-8d4a-2f52334b33ae/dd_monster_hunter_build.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85da1646-c0a6-4db8-ad6d-816d36b53de9/31642459777.pdfIn PDF document text
    • http://zipemoluligera.myartsonline.com/wixenuteveborumadituxigi.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_off000116c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C6 5176 bytes
SHA-256: 7346d1b66c48ccf121d9a7cc23e2cba207aea54bad0c8a375f9d5453690c6bd8
font_01_sfnt_off00012870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12870 11664 bytes
SHA-256: 0d02f9822ef45b11db543262e22f099ec276d5ddf28a465dce11ca3a179e7492

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