Malicious PDF — malware analysis report

Static analysis result for SHA-256 92bd60ca2fa4da5e…

MALICIOUS

PDF

90.3 KB Created: 2021-03-09 18:49:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 920a23a86f7505de82eaaf9f1a3418a4 SHA-1: d602a4b656a634ac95e0339718f9a8b77590b19c SHA-256: 92bd60ca2fa4da5e499e894d664ee7e814b385c47991ccbdaf87a8c6b1ef2c09
96 Risk Score

Malware Insights

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

The PDF file contains a URL that mimics a search result for a specific document, likely to trick users into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness, and the embedded URL is the primary indicator of compromise. No scripts were extracted, but the PDF structure and embedded URI are sufficient to infer a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://seumenha.ru/award?keyword=prayers+against+the+powers+of+darkness+pdf+catholic PDF link annotation
    • http://coolstudent.space/24407932677zvda.pdfIn PDF document text
    • http://importants.space/vanesalakoladujqaqm6.pdfIn PDF document text
    • http://blockingscenery.com/kitisu334de.pdfIn PDF document text
    • http://mainsale.info/spring_resttemplate_double_encoding4zjdu.pdfIn PDF document text
    • http://housefashion.ru/wow_lorewalkers_reputation_guide1g7yr.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/salosibejodod/romantic_baby_couple_wallpaper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5482821-61ad-4b6f-aaaa-041318601c45/kigikamotaxiwejuwapepes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcce58d2-dc42-46f5-8f5c-eba21e8e64a6/how_do_i_make_an_appointment_to_get_a_drivers_license_in_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/19687507905.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/dasakiregikuravofesegusa.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/hp_elitedesk_800_g1_tower_graphics_card_upgrade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b26b52cc-9659-49b4-8fba-b035b5ce1f3e/alpha_phonics_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69ec5746-af68-43e1-8b85-1c4f6da31dd6/bosogepifijigeka.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/51064631295.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ada8d61-497d-4b92-acb9-ca5517f32b88/16664625525.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/pregnancy_announcement_template_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/drawing_ideas_anime_naruto.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/16277441853.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/87220187058.pdfIn PDF document text
    • https://s3.amazonaws.com/fifomi/kuvemunosujezor.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/candle_light_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/mijixow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00c53551-7d04-4b92-82d2-ef2d0ce2ab48/do_dunkin_donuts_flavors_have_sugar.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_off000125c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125C4 5676 bytes
SHA-256: f55de95b0297d11df00c62d30a89d4abadf3444e4470765848c116513f180b3f
font_01_sfnt_off0001392c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1392C 10052 bytes
SHA-256: 41328d2e610161f3fff20f783aa63c99b35d6bc8a220c620417469e77cda1cc7