Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e098cffaa215499…

MALICIOUS

PDF

97.1 KB Created: 2021-06-02 05:33:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: a8c62ec968ffaded66c02f60aabc0d59 SHA-1: 80d6518c9d3c81e62ce0cf5e273c3436837ab672 SHA-256: 8e098cffaa215499953f57d04c8e1f5d5cdbe2377725b19c739b6dd555c14fea
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a primary external URI pointing to 'https://garglob.ru/pbw?utm_term=jim+stoppani+superman+2+pdf'. This URL, combined with the document body's reference to 'Jim stoppani superman 2 pdf', suggests a phishing or social engineering lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://garglob.ru/pbw?utm_term=jim+stoppani+superman+2+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474462/normal_6055644897416.pdfIn PDF document text
    • https://gefererasixo.weebly.com/uploads/1/3/4/7/134749514/jirujoxajimodi.pdfIn PDF document text
    • https://jipaxebuperiw.weebly.com/uploads/1/3/4/7/134751602/9707198.pdfIn PDF document text
    • https://burakobid.weebly.com/uploads/1/3/4/6/134602904/samevigadizago-mevewesanetumo-vejape-zutisajabiv.pdfIn PDF document text
    • https://gebifulud.weebly.com/uploads/1/3/0/7/130775692/finufotugok.pdfIn PDF document text
    • https://mizefubu.weebly.com/uploads/1/3/4/6/134637235/dumaliranidivan.pdfIn PDF document text
    • https://zedodunojoponex.weebly.com/uploads/1/3/6/0/136083391/wowupurez_kolizugir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495694/normal_604630f9cdf9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403946/normal_603389471f10f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413968/normal_6012cd306e220.pdfIn PDF document text
    • https://bekogome.weebly.com/uploads/1/3/1/4/131454098/lemuxi.pdfIn PDF document text
    • https://vedirivokezijil.weebly.com/uploads/1/3/4/1/134108565/jetetemogujiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nosiravuga.pbworks.com/f/rikitilumovunoduzigupun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e20a62d3-daa0-4693-b887-85cd4444507a/96101799519.pdfIn PDF document text
    • http://sofutikajen.pbworks.com/f/solucionario_libro_matematicas_aplicadas_a_las_ciencias_sociales_1_bachillerato_sm.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a06681d-3abc-45e8-96a2-b3830f6c7ca6/principles_life_and_work_amazon.pdfIn PDF document text
    • http://jutifakukap.pbworks.com/f/reacciones_quimicas_de_doble_descomposicion_ejemplos.pdfIn PDF document text
    • http://genarozep.pbworks.com/f/advanced_microeconomic_theory_jehle_reny_solution_manual.pdfIn PDF document text
    • http://povelin.pbworks.com/f/bushnell_tour_v4_patriot_pack_laser_rangefinder_manual.pdfIn PDF document text
    • http://sizolasipape.pbworks.com/f/kalnirnay_april_2019_marathi_calendar_download.pdfIn PDF document text
    • http://fuxedemama.pbworks.com/w/file/fetch/144484611/how_to_win_death_road_to_canada.pdfIn PDF document text
    • http://jotoxipigi.pbworks.com/f/types_of_lens_used_for_correcting_eye_defects.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/151e859e-0aa2-4d88-bc70-2290d8192f19/99691147767.pdfIn PDF document text
    • http://munonoraze.pbworks.com/w/file/fetch/144444495/microbiology_laboratory_theory__application_brief_3e.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9A 4292 bytes
SHA-256: a5a0aeadebf561e78423bb29676752c47d546b2e9e20cd9bcb8788cb096d459d
font_01_sfnt_off00011df7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DF7 5276 bytes
SHA-256: d3021f45364dec54445d4e6d53c5521a58c62da28e068d9f5e1cb7113d41ff7c
font_02_sfnt_off00012fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD1 14156 bytes
SHA-256: 5a3632f2b928814a64bbbdc963faf3600ccad4074aa24f269a12d6e8650867e4
font_03_sfnt_off00015f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F60 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449

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