Malicious PDF — malware analysis report

Static analysis result for SHA-256 2302102fd430c477…

MALICIOUS

PDF

76.7 KB Created: 2021-03-31 21:10:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 67e9cc0fbab9b4c1ccffe3c5cc1999fe SHA-1: c24ab65cd785794bf0b1c4f4e8187d9b4ff80f4d SHA-256: 2302102fd430c477b885504cb3dffc4e7aca59b10a0fbd09b0b8c9a0fd7c44c1
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 0.9991

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://crophysi.ru/award?keyword=shl+deductive+reasoning+test+pdf PDF link annotation
    • http://qunit.space/is_ford_service_open_on_saturdayn03sa.pdfIn PDF document text
    • https://cdn.sqhk.co/kipaselofuza/agfjH30/whatsapp_messenger_for_android_4._2._2.pdfIn PDF document text
    • http://all-system7.xyz/bugejuwibirizoxozvtdue.pdfIn PDF document text
    • https://cdn.sqhk.co/pavoraxebute/cLghihZ/60671065177.pdfIn PDF document text
    • https://cdn.sqhk.co/judigirowe/jgf7eLw/wulinokabaju.pdfIn PDF document text
    • http://losqutoq.online/34966831608t4dfa.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/31176179172kmwwx.pdfIn PDF document text
    • http://idem-peshkom.ru/4270045290719aku.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/bphhheS/23222417621.pdfIn PDF document text
    • https://cdn.sqhk.co/zosikoto/8jghbhe/bio_inc_redemption_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lipitesagodat.epizy.com/casio_sport_protrek_solar_watch_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/apple_airport_express_a1392_airplay_2.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/acorns_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/counter_strike_1._6_plus_bots.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/winidatodorojelekanazav.pdfIn PDF document text
    • http://ketavulamuxi.epizy.com/54877858223.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/gepewu.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/bulbul_kannada_movie_songs_free_123musiq.pdfIn PDF document text
    • http://dowirimidezifa.rf.gd/21280043207.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/ligujanarir.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/jefab.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/dudag.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/xajumivusefozoveziwa.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/vewemupafuza.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_off0000ecb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB0 5580 bytes
SHA-256: 1f4a2e049692aa1821899f3e64e81475406362bc5dcc96b20bb813df9b26c0ab
font_01_sfnt_off0000ffa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFA8 10852 bytes
SHA-256: dc0a01771ab283269bb382220f04ea8de3637f95a8f4b40a356a0f6ca7299eec

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