Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fe469bb8334b304…

MALICIOUS

PDF

76.8 KB Created: 2021-04-07 10:02:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6805251c5f8a40ac8cc9060f63deffa6 SHA-1: 129712da20bb4d2da3187b2689ddf0d35157a1c0 SHA-256: 8fe469bb8334b3046b4af560d8749f1fe1d6ed4a724a2d2ad07f86b233e22b17
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely intended to host malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jottigo.ru/wix?keyword=cognitive+information+processing+theory+pdf PDF link annotation
    • https://cdn.sqhk.co/fedovusig/h39iagc/15235352433.pdfIn PDF document text
    • http://draiwenstore.online/tascam_dp-006_drumsogwj7.pdfIn PDF document text
    • http://goldstein.berlin/sunabikudabavirunazo62iz6.pdfIn PDF document text
    • https://cdn.sqhk.co/wobuwaseja/jcijZge/brave_dungeon_immortal_legend_gift_code.pdfIn PDF document text
    • https://cdn.sqhk.co/nagebagem/idichcS/barongan_jawa_tengah.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://heliusdesign.ru/49661789304tsd6n.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/antonio_lupi_piana.pdfIn PDF document text
    • https://cdn.sqhk.co/lopumilekana/jjewicR/84502773742.pdfIn PDF document text
    • http://ridunculus.com/10x10_square_graph_paperp69gm.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/zafijukopa/ps4_controller_keeps_blinking_and_wont_connect.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/7103511415.pdfIn PDF document text
    • http://kojenixerog.myartsonline.com/general_psychology_test_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/3797417373.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/muvegemix.pdfIn PDF document text
    • https://s3.amazonaws.com/bisegilupuf/cravings_by_chrissy_teigen_cookware_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/microsoft_project_online_premium_trial.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/abrsm_grade_5_theory_model_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/apogee_element_46_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/best_movement_disorder_specialist.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/95409749346.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/lewufago.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_off0000ef3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3E 5604 bytes
SHA-256: a4750f1532f455d0ace42a587acf44dbcc042a7825aa49a6eea7500469df4f36
font_01_sfnt_off00010232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10232 10248 bytes
SHA-256: 4a45f105fb364b85c896bbbc720fd41cbcfbf2cfb5ca0ef13d9d0e94952e0df4

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