Malicious PDF — malware analysis report

Static analysis result for SHA-256 29024cda1b7dd417…

MALICIOUS

PDF

77.1 KB Created: 2021-03-17 14:43:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 7c40fc7e291560af15f8856fc1696599 SHA-1: 7b16f2ae78abb67f7103c247e14b19681d67dccd SHA-256: 29024cda1b7dd417c6fe6175e4d60b9935565cb4abd45fde6eb8be45b51f1eab
196 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to suspicious domains and designed as a link farm, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lead users to download further malware or engage in phishing. The presence of multiple suspicious URLs, including those with numeric slugs and domains like 'securityofusersdevicesonline.site', reinforces the phishing lure attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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=is+netgear+nighthawk+compatible+with+at%2526t PDF link annotation
    • http://theplafond.xyz/jovabubisudategelikarhxkiv.pdfIn PDF document text
    • http://im-marceting.site/rabajekedagiwawuwabogoimizn.pdfIn PDF document text
    • http://securityofusersdevicesonline.site/254758227421emqz.pdfIn PDF document text
    • http://gudutisiluzew.mypressonline.com/online_education_system_project_report.pdfIn PDF document text
    • http://gejulavofanutar.mygamesonline.org/fun_writing_activities_for_4th_grade.pdfIn PDF document text
    • http://doucheapp.xyz/rinijoxusurexisivibunufodkrmok.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/cngchcN/vegawufovesimutiwizawafe.pdfIn PDF document text
    • http://mabay.fun/steam_game_speed_0rh6ep.pdfIn PDF document text
    • http://esclub.pro/gabapapepibovibivajuv60me6.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/1hejiUF/gomamefitivajovir.pdfIn PDF document text
    • http://milanomoda-italy.site/conservation_biology_books_freedyyns.pdfIn PDF document text
    • http://consumer-data-protection-bureau.com/washington_dc_museums_christmas_hoursegedy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xotomisen/kivepajol.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/66722290635.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/96073757960.pdfIn PDF document text
    • http://xuvuzonixo.onlinewebshop.net/robotica_para_nios.pdfIn PDF document text
    • https://065b66ee-25d8-4381-b309-094abc4d823c.filesusr.com/ugd/2703e6_5bf0793faf824b368a66a2419ef17819.pdf?index=trueIn PDF document text
    • https://27475d5a-2981-497d-8cd5-0c310ef10f8b.filesusr.com/ugd/9cb927_6cb1fbc08e204c99a01ec10613e2a6f5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/riperotoxetebofixabuzag.pdfIn PDF document text
    • https://s3.amazonaws.com/sudevejerifu/white_subway_tile_backsplash_sheets.pdfIn PDF document text
    • https://ce83042b-5faf-46b5-bcbb-9b4d05ec7d33.filesusr.com/ugd/a31856_336f1cc3154f4e1a934ae3ed32ed4d62.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_off0000eb98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB98 5580 bytes
SHA-256: 53640cecb912dc8089a319c324e8d97d4376d3df44f3b32186952542493775d3
font_01_sfnt_off0000fe7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7B 11464 bytes
SHA-256: 3247ef098afc54cc188448e5c3920f039b26c8a6d451ea0994b605b6bd283aed

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