Malicious PDF — malware analysis report

Static analysis result for SHA-256 3474e2a2fae3ccb3…

MALICIOUS

PDF

79.0 KB Created: 2021-03-12 17:13:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6621139eb1985eefb4ecdfb084961d6b SHA-1: 344b13f61bb352365e115d07739fdfc5a9e146fe SHA-256: 3474e2a2fae3ccb3e6a549e9cc067918266278b910e0d585728dc48e86b1d3fc
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://bologen.ru/award?keyword=arduino+uno+pdf+indonesia PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454435/normal_601877031972b.pdfIn PDF document text
    • https://cdn.sqhk.co/tifisizeliz/E7Rgfie/gupuji.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/a_touch_of_class_movie_soundtrack.pdfIn PDF document text
    • https://cdn.sqhk.co/fogunedevare/hhghejg/short_film_grants_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/zebimapajod/igibAij/viruswaarheid_kort_geding.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501201/normal_601bb34ee5de4.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/fopegozuf.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/46299698194.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b2a45b2-e052-479d-b262-97f5c62fac43/fanifudor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96a8a8d2-bb32-4f58-ba22-ecef1c179935/scotsman_ice_machine_contact_number.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/avg_free_full_filehippo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47584f6e-b638-423f-8268-efa963d6de35/jekusafedeluseg.pdfIn PDF document text
    • http://soranodabiwegi.myartsonline.com/el_conde_lucanor_cuento_51_resumen.pdfIn PDF document text
    • https://s3.amazonaws.com/pidufozu/wow_classic_in_game_leveling_guide_addon.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/86905472302.pdfIn PDF document text
    • https://s3.amazonaws.com/muvazi/vivobixepujekurizuwuzuko.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/53623367004.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3a33ec0-65c7-45c5-9b3f-bd061b859ffd/logitech_k800_battery_life.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/52715704868.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2dfef77c-6bc7-4bfa-b64b-e512c1e6dcde/98680947184.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/mipanupagezuremogeputas.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/gym_workout_app_android.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_off0000fae8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAE8 4992 bytes
SHA-256: b71b844c05cc2a74953093b215c819613210cfe8eefb38608739bd454c0bafc6
font_01_sfnt_off00010bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF6 10196 bytes
SHA-256: 26336ed7afa467e31a1f7ccb507b117f719146b1600b8f71e3725298ed32a3d5

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