Malicious PDF — malware analysis report

Static analysis result for SHA-256 39f095c01c7d08e4…

MALICIOUS

PDF

79.3 KB Created: 2021-04-11 23:13:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a224f25b9449c31de33f301753bb1cd7 SHA-1: b065bed70a659afd75af649adce077f408b50808 SHA-256: 39f095c01c7d08e4f0f1aee461fccc2feeace96089e9970f60f4eafc822f5662
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 0.9954

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://golowaki.ru/strik?utm_term=mens+barber+open+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449768/normal_5fee2a72c6783.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478387/normal_601b90a03a952.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454825/normal_603a178cc6d80.pdfIn PDF document text
    • http://sbrf.link/pirenitjue6p.pdfIn PDF document text
    • http://kimidenexikox.getenjoyment.net/ragovegobeguzefufamuve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427273/normal_60619418c0f48.pdfIn PDF document text
    • http://xumugawejal.scienceontheweb.net/raw_vegan_recipes.pdfIn PDF document text
    • http://stavki-na-sport.site/gavomapute5lb44.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/how_to_reset_a_takagi_tankless_water_heaterk5gkg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446507/normal_5ff3f5706428c.pdfIn PDF document text
    • http://pasipodo.mypressonline.com/wood_swing_set_plans.pdfIn PDF document text
    • http://centerbluebadge.com/free_slots_777g97nr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/c746b9b9-2e42-45a5-a7f1-0cd282822691/does_the_navy_reserves_pay_for_college.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/blue_bossa_chords_eb.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/cisco_webex_add_on_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/768f628b-a792-4310-9724-a30180e4d267/sowekamowajujeso.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/dojuzemovukasu.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/algebra_solver_app_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc526a3-3a17-4b61-a730-b75e4bc63761/what_are_the_different_genres_of_films.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/what_is_the_nativist_theory_of_language.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95d5e5b4-7d28-439b-b2b8-7b1e2db4cac4/82002326256.pdfIn PDF document text
    • http://nakixaxev.myartsonline.com/dibesiwuzovopasi.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/wugapinilenibatuwevuwavej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5348995-6168-44d5-8b3d-266b7c272e1d/study_in_scarlet_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/pujefijowaf.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/28285882088.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED83 4740 bytes
SHA-256: 219081b44a19edfc2788cfc8c3a00b2bd80cf022b3ad1bf530be2ce991f7f177
font_01_sfnt_off0000fd68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD68 10600 bytes
SHA-256: 0781e807705418ea63290d9391f8c5050602f35b9704f626eac50e0ff25c7730
font_02_sfnt_off000121b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121B7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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