Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d73933a47b9ecb…

MALICIOUS

PDF

92.6 KB Created: 2021-04-06 08:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51f659ce254b699928407e27fb92ee43 SHA-1: 9cc09fef25d2647d66614bb053d9f4941d48976b SHA-256: c7d73933a47b9ecb65dcdf15dbcb844a9494decff3a5a11edb490df74c4243c3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, masquerading as a search result for a common technical problem. ClamAV and ML classifiers strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/aws?utm_term=why+is+my+lg+washing+machine+not+draining
    • http://narixuz.mypressonline.com/buyers_guide_form.pdf
    • https://cdn-cms.f-static.net/uploads/4529281/normal_603212dbc2323.pdf
    • https://cdn-cms.f-static.net/uploads/4378618/normal_6050d7a10f08a.pdf
    • http://tegotapiw.scienceontheweb.net/barclays_bank_statement.pdf
    • https://static.s123-cdn-static.com/uploads/4370268/normal_5ffbd7ac91af2.pdf
    • https://cdn.sqhk.co/zopinulepa/ehieb8F/tabikobujibulin.pdf
    • https://cdn.sqhk.co/fetadupozo/ehijc6V/82439030545.pdf
    • http://wepijafiguwenan.mywebcommunity.org/54573165256.pdf
    • https://cdn.sqhk.co/merabuvi/ijagdON/first_words_books_for_babies.pdf
    • http://suziterunedoloj.sportsontheweb.net/problemas_sobre_angulos_de_elevacion_y_depresion.pdf
    • https://cdn-cms.f-static.net/uploads/4472491/normal_60182edc346b3.pdf
    • http://fasoxuxesatilu.sportsontheweb.net/autumn_leaves_piano_jazz.pdf
    • https://cdn-cms.f-static.net/uploads/4409258/normal_6022f94f2dc49.pdf
    • http://tujemet.scienceontheweb.net/19935421601.pdf
    • http://biniwitovo.mywebcommunity.org/traumatismo_abdominal_en_nios.pdf
    • http://siwivelijutore.medianewsonline.com/danby_50_pint_dehumidifier_with_pump_setup.pdf
    • http://davupopebuwiser.sportsontheweb.net/piero_calamandrei_processo_e_democrazia.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://6d4cd3b7-91e9-43ac-92b9-205473f1e50d.filesusr.com/ugd/28146e_0958ed2859d84073944f40f6346700dc.pdf?index=true
    • https://s3.amazonaws.com/bakoloj/sql_server_management_studio_17._7.pdf
    • https://s3.amazonaws.com/satudifin/advantages_and_disadvantages_of_aida_model.pdf
    • https://00eaa6b3-f026-4720-b00f-fafb40066352.filesusr.com/ugd/d498be_4587fd0fe266402fb76b3167501d432e.pdf?index=true
    • http://wugujub.onlinewebshop.net/52366854097.pdf
    • https://s3.amazonaws.com/kabisebax/72607635371.pdf
    • https://1b53f64c-3596-40ff-86ea-95cec8902569.filesusr.com/ugd/838e7e_8666734771b440209dbb224c1103b065.pdf?index=true
    • https://fdb0147f-387d-4908-9c93-1ccdb5bf775f.filesusr.com/ugd/aea2e0_e6f8363316204446bfa2d807fa705629.pdf?index=true
    • https://s3.amazonaws.com/dowadotiju/sanevegizotupuzinedo.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000115d1.bin
f3827a2cad0b8f177fccaafd930899318998aac51d2e2de51e99f900f9419d60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115D1 5560 bytes
font_01_sfnt_off000128aa.bin
fc2551f6911dcec90ef29594061c6b4bbee50d0d20ec2abf64c68fbddc662cad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128AA 11160 bytes
font_02_sfnt_off00014ed5.bin
d612c605d101522a7b082cd092ef78b209dae850c4a5e940dd0f53fb1bc5669f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14ED5 16148 bytes

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