Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf6c9fa48dfa39b7…

MALICIOUS

PDF

89.0 KB Created: 2021-03-24 00:00:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 922e94edc98b574e94ded3ba2420975e SHA-1: c40b6d8f68218c00905db939d92112e349861ff5 SHA-256: bf6c9fa48dfa39b7f0985597951dacee7349df04dfd50a445230c500e6156418
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for link farms or phishing campaigns. The heuristic PDF_SEO_LINK_FARM and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads. The embedded URL and the document's appearance as a movie link further support a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kuzutuzo.ru/strik?utm_term=diarios+de+motocicleta+pelicula+completa+espa%25C3%25B1ol PDF link annotation
    • http://xobilosusi.sportsontheweb.net/cardan_shaft_design_calculation.pdfIn PDF document text
    • http://kivafijap.mywebcommunity.org/22675689047.pdfIn PDF document text
    • http://wovoradomumakil.medianewsonline.com/lipid_metabolism_notes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://7a579b3f-ce96-4c66-abdc-991530493d29.filesusr.com/ugd/010c6b_56c772b3ec484550b0b7bb0d298d1e57.pdf?index=trueIn PDF document text
    • https://c788b29d-df2d-4d46-9946-349e8cce89b7.filesusr.com/ugd/a9e086_09fc3109045048cbbae533514b52f148.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/how_to_find_net_profit_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/pirates_of_the_caribbean_piano_sheet_music_easy.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/dedagimuw.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/seresadikirezawebuvabonum.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/podija.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/84868876152.pdfIn PDF document text
    • https://be1d055c-b83b-422e-9e68-1bf13cef350c.filesusr.com/ugd/5b1e3c_5558b1c663cd48e7aee4434f366c64a9.pdf?index=trueIn PDF document text
    • http://dexidije.epizy.com/marketing_internship_report_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/72960576955.pdfIn PDF document text
    • https://a68e2ff5-bf17-48e3-82d4-ceb975b85758.filesusr.com/ugd/760101_dbb83b9825a441ac8d46df3ad8948721.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/92c4157e-f952-43cf-a593-0cd94f610d56/how_to_build_flat_pack_gift_box.pdfIn PDF document text
    • http://xokifanubede.rf.gd/jumopemuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68dc9beb-f782-4a96-b80c-ab8fe4610000/mujef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aae0162e-16af-4ed2-a83b-6a411867cd10/where_is_the_ip_address_on_a_ps4.pdfIn PDF document text
    • http://bixozebaxikapos.atwebpages.com/61148660974.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c93c4ec9-c1f9-4738-a25e-66148b86efba/lolegalilanixobizug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11b8aae0-2b2e-4ea1-babc-5b2cb842f0e7/43475649639.pdfIn PDF document text
    • http://kixavukuwowaz.rf.gd/the_best_whatsapp_status_video.pdfIn PDF document text
    • https://98cdd5c5-c43e-49eb-9373-39517e896cbb.filesusr.com/ugd/90661f_e803d51234764efebac71a4a93fb1223.pdf?index=trueIn 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_off00011a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A15 5428 bytes
SHA-256: 0f81bd5ebfbc05b1aa3934b11e4f62ba431939d74eff1d4cc02d69055f8c41f1
font_01_sfnt_off00012c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C37 12300 bytes
SHA-256: 4246b75c7d0b08b68b96e55bdea6d6ec0907058645bd307ff0c79fbf63052a2d

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