Malicious PDF — malware analysis report

Static analysis result for SHA-256 87011e959f6359a2…

MALICIOUS

PDF

78.1 KB Created: 2021-03-19 18:34:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9bd5ef9e527228cc4fee726c3560d21a SHA-1: 1130b6ab5f425363d1424d06dc27f5d99127bbdb SHA-256: 87011e959f6359a28999e32ddefe3fc36db39bed0c11a9b9f60be2754ab777e8
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 0.9996

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://soxebez.ru/aws?utm_term=how+to+learn+mathematics+quickly PDF link annotation
    • http://dofabubotuda.iblogger.org/ujt_relaxation_oscillator_experiment.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/Igea9ja/color_splash_background_vector.pdfIn PDF document text
    • http://tuvosudokalidu.scienceontheweb.net/98543015735.pdfIn PDF document text
    • http://zolidunepojew.iblogger.org/bullying_acoso_escolar.pdfIn PDF document text
    • http://wofaguwere.iblogger.org/15479912535.pdfIn PDF document text
    • https://cdn.sqhk.co/dedejosewor/2diiAib/business_tour_private_table_free.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/jRKDzgj/40368855868.pdfIn PDF document text
    • http://towibukawit.22web.org/nalini_singh_archangel_s_heart.pdfIn PDF document text
    • https://cdn.sqhk.co/tudobele/dicijbQ/dragon_quest_11_supreme_sword_of_light_materials.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/hiibhir/desapixagasububukiji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faleferesevo.onlinewebshop.net/25219234050.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/powedamobobotejuzuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/cuneiform_cartilage_nodule.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/titolazione_acido_base.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/buseretuzinuj.pdfIn PDF document text
    • http://lirepemewepe.rf.gd/define_chain_of_command.pdfIn PDF document text
    • http://wumafopid.onlinewebshop.net/zikabiwuvikerunuxiwotag.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/zalisegaxep.pdfIn PDF document text
    • http://wefejaxofupun.rf.gd/how_much_weight_can_a_2020_ford_ranger_pull.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/emulator_android_untuk_pc_ram_1_gb.pdfIn PDF document text
    • http://punifaz.epizy.com/el_libro_tibetano_de_los_muertos_descarga.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/17820559076.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f40b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF40B 5384 bytes
SHA-256: de667501caa01866a7c19929fb8294694cede254155e9dd0e88fe404363a5ddf
font_01_sfnt_off00010645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10645 10744 bytes
SHA-256: 209a6a19355e53a27da647fd030c925a9503eb89509e3281108ba7d3f919136e

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