Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a1f94e99f9f2091…

MALICIOUS

PDF

75.1 KB Created: 2021-02-25 12:36:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ba4779469b8970904f2f64f2e1745e64 SHA-1: 8f4d5f91753e32baa5fe4b206663247a9e6a9d51 SHA-256: 8a1f94e99f9f20918ef546ea6e7bc9da5bc95f00639d78759d265378b8e67467
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/123?utm_term=what+is+the+main+theme+of+tintern+abbey PDF link annotation
    • http://sugameloxufe.mywebcommunity.org/is_m65_field_jacket_waterproof.pdfIn PDF document text
    • https://cdn.sqhk.co/safovokon/IPtigia/wowawusasenufeji.pdfIn PDF document text
    • http://katipef.medianewsonline.com/what_does_a_team_lead_do_at_walmart.pdfIn PDF document text
    • http://jedomagisuw.getenjoyment.net/43631422331.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/new_yorker_caption_contest_740.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/84JR5qk/carx_drift_racing_lite_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gixedomawa/re8hgii/never_have_i_ever_imdb_trivia.pdfIn PDF document text
    • https://cdn.sqhk.co/nufesewepi/iidjjgd/asi_se_dice_in_spanish.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/padosumifubobo/bomagafedatitupaxologaf.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/72755895015.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/kupupaxegelum.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/nonorex.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/hinduism_origin.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/6602073064.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/shopping_list_template_cute.pdfIn PDF document text
    • http://medexode.atwebpages.com/ludamemixasitemuputomizi.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/ontario_progress_report_comments_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/40063730272.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/beethoven_fr_elise_sheet_music.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_off0000e971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE971 5232 bytes
SHA-256: 7a46b705f95d101dabccd731a77c344c3247354ec232cf584e8550420dc15c3c
font_01_sfnt_off0000fb25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB25 10520 bytes
SHA-256: 70056ed053ee9c55f0656025b39144d81962714a3da5970ff8adffdff14a9c92

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