Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2de62024bb38a5…

MALICIOUS

PDF

80.6 KB Created: 2021-05-06 00:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8b2c0d8d258af899806d419385d5dd2e SHA-1: d29957f0ac6a7d4fd5597c509396c6a0e6319573 SHA-256: cc2de62024bb38a50ba950f28b714f2f575f4a8a6deb12fa02f8545614243c40
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and are flagged as part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, references a presentation topic, suggesting a lure to disguise the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xajibur.ru/strik?utm_term=punctuated+equilibrium+model+of+group+development+ppt PDF link annotation
    • http://fonixeguga.mywebcommunity.org/bin_sachivalay_clerk_book.pdfIn PDF document text
    • http://reduslimer.website/nodemugobapekn1cw.pdfIn PDF document text
    • https://cdn.sqhk.co/favosejo/gcjbwPK/lighthouse_inn_rockport_reviews.pdfIn PDF document text
    • http://doxedisipi.scienceontheweb.net/broad_based_black_economic_empowerment.pdfIn PDF document text
    • http://degimogug.mypressonline.com/73237574859.pdfIn PDF document text
    • http://datab.vip/hp_pavilion_dv6000_hard_drive_specsn6b0g.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafanez/kicrjiD/19347665742.pdfIn PDF document text
    • http://ligumiju.iblogger.org/81214180012.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/bjgLCii/como_calcular_el_iva_e_isr_retenido.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/Cihrnib/27587726202.pdfIn PDF document text
    • http://astrology-personal.online/playboy_magazines_the_collectors_and_dealers_price_and_identification_guidet4xbl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kagijido.myartsonline.com/how_to_calculate_ammeter_reading_in_a_circuit.pdfIn PDF document text
    • http://goxafebo.myartsonline.com/buyers_guide_filler.pdfIn PDF document text
    • http://jolafefiluw.rf.gd/lucknow_university_exam_date_sheet_of_bba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74838d20-2184-4b24-b5c5-a6fc2de1b7c4/neato_botvac_d5_connected_manual.pdfIn PDF document text
    • http://wavujeg.epizy.com/56972757450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fe369bd-744c-4fb7-8bc0-54eebf6b1def/niwonurovuvugatodipiwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23a1af3f-3041-472b-8c9b-bbc04499ec07/bic_america_f12_12-inch_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0f75fe2-4457-44c6-9eab-3d2d30d9a6e1/how_to_operate_walmart_cash_register.pdfIn PDF document text
    • http://rigutogivopum.epizy.com/play_store_app_install_old.pdfIn PDF document text
    • http://gafufumajofoben.rf.gd/78328712140.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70cb3d7a-b3a4-426b-9f26-806c5f80f042/cuisinart_convection_toaster_oven_1800-watt.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_off0000fcf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF3 5624 bytes
SHA-256: 2c9b2cbfd90801a5472332e96768078af40b52646ab749ee6cbe2f18b7f74672
font_01_sfnt_off00010ffb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FFB 10840 bytes
SHA-256: 6d104269fc8b3a734356a63f9438c8754881466686e7a12f8e61afc98c1c0fde

Open this report in the interactive analyzer, or submit your own file for analysis.