Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e67534ad3787f72…

MALICIOUS

PDF

91.6 KB Created: 2021-03-13 22:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 31d5651957b9a4a27670d84a7529970b SHA-1: 7f453efa87ca63089ef7693926da1105555ee516 SHA-256: 8e67534ad3787f728ada45f8f5ce44fcc0e9d7ea8a6b928ff561b155383a4e08
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that appears to be a phishing lure, disguised with text related to 'pharmacy technician university final exam answers'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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/123?utm_term=pharmacy+technician+university+final+exam+answers
    • https://static.s123-cdn-static.com/uploads/4407729/normal_5fe44642c9e88.pdf
    • http://idealslim-italiaoficial.site/sipexasujuzigidisazb3qh.pdf
    • https://static.s123-cdn-static.com/uploads/4381544/normal_5feb6c5b5d283.pdf
    • https://cdn-cms.f-static.net/uploads/4366358/normal_600daba68fae5.pdf
    • http://wordwild-store.com/project_manager_job_salary_in_canadabbc6a.pdf
    • http://lnstagram-verifedbadge.com/6611470041me58u.pdf
    • https://cdn.sqhk.co/xagegegozi/7jciiif/13885510331.pdf
    • https://cdn.sqhk.co/baxoladipezu/fYjam4d/colony_wars_iii_red_sun_ps1.pdf
    • https://static.s123-cdn-static.com/uploads/4410414/normal_5fcf16007675d.pdf
    • https://cdn.sqhk.co/fifotadog/x7ihibs/61218152828.pdf
    • https://static.s123-cdn-static.com/uploads/4425511/normal_5fc6c86769289.pdf
    • http://shoop-ft.ru/ifrs_15_kpmg_guide9hyev.pdf
    • http://sokixatov.mywebcommunity.org/acta_constitutiva_ejemplo_de_una_empresa.pdf
    • https://cdn.sqhk.co/reriwoduriju/jagjUzo/garovixu.pdf
    • http://swiss-family.space/apink_luv_dance_practice_mp4de3ub.pdf
    • https://cdn.sqhk.co/novitovikor/sDcjege/pikisupuwuwafupe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/bd34f0dc-0eef-4eed-8f4e-57e4d414379c/97420178188.pdf
    • https://uploads.strikinglycdn.com/files/755b113e-1dc0-4817-b008-4e7769794293/assassins_creed_valhalla_speech_choices_dag.pdf
    • http://zutaturusix.myartsonline.com/93411954395.pdf
    • https://uploads.strikinglycdn.com/files/19bc2ae2-2bed-41d8-8fe9-93e09d70d195/datolufu.pdf
    • https://uploads.strikinglycdn.com/files/1ea80b09-39d8-4d34-9f8a-395bab661935/tezik.pdf
    • https://uploads.strikinglycdn.com/files/d1cab473-b219-4272-a8a8-3c998165b0ff/59040841628.pdf
    • https://uploads.strikinglycdn.com/files/d2fe2cd5-a946-4592-b43a-57d97c6e9228/is_lattice_energy_usually_endothermic_or_exothermic.pdf
    • https://uploads.strikinglycdn.com/files/7e51f4ce-57ee-46b4-b0c0-330499047cf1/49706670485.pdf
    • https://uploads.strikinglycdn.com/files/b3bc330f-7cd7-4dbd-a35f-ad6616ef9c5d/hitachi_c10fce2_10-inch_compound_miter_saw_manual.pdf
    • https://uploads.strikinglycdn.com/files/52e45a11-0f8b-4f1b-8c05-929f84823f01/much_ado_about_nothing_act_1_scene_2_quotes.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001259e.bin
c2f6a12b75a95d41b38a8141f11e0a39f5792b359db361d0ed1913a29f850d28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1259E 5444 bytes
font_01_sfnt_off0001381b.bin
a6f94ddb0e1aca91272498ab108749282e9cf84310a1ef417404ed588ec4d558		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1381B 11884 bytes

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