Malicious PDF — malware analysis report

Static analysis result for SHA-256 93532188062d335b…

MALICIOUS

PDF

79.3 KB Created: 2021-04-28 22:50:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3788e06b283eb6287eda433b96b4d77d SHA-1: d45fb5abb14513a896d6bdfaf7835913a47bba18 SHA-256: 93532188062d335bb654a0f79890df1904ccc766a12f24e801fc345b04520eeb
156 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a phishing lure, disguised as a free sheet music download. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm designed to obscure malicious activity. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://kuzutuzo.ru/strik?utm_term=kiss+the+rain+piano+sheet+music+free+download
    • http://wopizup.mypressonline.com/wuwoj.pdf
    • http://liberum.sportsontheweb.net/41769639638.pdf
    • https://jutokikifugata.weebly.com/uploads/1/3/1/0/131070124/liwonedobe_sexarije_tidimebaragu_jojaleg.pdf
    • https://xakivemo.weebly.com/uploads/1/3/0/7/130739368/wemalig_vevemazovipidem.pdf
    • https://buwuwewofopalun.weebly.com/uploads/1/3/4/0/134097592/9810613.pdf
    • https://jetujonupukoj.weebly.com/uploads/1/3/1/1/131163664/4678166.pdf
    • http://my-credit.info/zazisumusumejofe2ci.pdf
    • http://idealslimitalia-oficial.site/vojofu6mw0f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wutogugej/california_executor_compensation_guide.pdf
    • https://0fc0baf9-b884-4fcd-968e-f93c0f938930.filesusr.com/ugd/68ec51_3048699e88684b30bf8743afa21eafdc.pdf?index=true
    • https://s3.amazonaws.com/zaxawetawupo/1565_shadow_run_frontage_steamboat_springs_co.pdf
    • https://d5aacb37-8766-4234-9cc8-c2ec3b911aba.filesusr.com/ugd/1e723b_9c434f5cd260415bb6ffebdbdb2c5ffc.pdf?index=true
    • https://s3.amazonaws.com/wupixufekijax/car_value_guide_nz.pdf
    • https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_6e7e3a1ee5354c11b68928c565d3bbc1.pdf?index=true
    • https://s3.amazonaws.com/ragejufa/national_grid_report_power_outage_ri.pdf
    • https://s3.amazonaws.com/biwubeleba/19922042863.pdf
    • https://s3.amazonaws.com/rebesudanolo/62776911585.pdf
    • http://ligujizulogi.atwebpages.com/market_leader_elementary_business_english_course_book_3rd_edition.pdf
    • https://b86313a8-447b-404d-ae6d-bc69740d899e.filesusr.com/ugd/e54fc7_a5d38c61c58a4c02898b978cdfe20feb.pdf?index=true
    • https://s3.amazonaws.com/nakuzafol/transformers_revenge_of_the_fallen_movie_download_in_tamil.pdf
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_0f554df406cc446fab1dd5b51acc078a.pdf?index=true
    • https://s3.amazonaws.com/wutisigila/diary_of_a_drug_fiend_audiobook.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_off0000f74c.bin
cf336c7b374b52ba2ee1c79e1786b15f8005c78a8aa60870b86d6ea3233656df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF74C 5456 bytes
font_01_sfnt_off000109c5.bin
6d770115d7a1c2d7f4c51bc82dd23e5a17c25265b5d5140324e94785d3b12e10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109C5 10964 bytes

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