Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ab3784b2a90845…

MALICIOUS

PDF

78.2 KB Created: 2021-03-02 09:19:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: d7845d3e1873dd6617b154d3d07d236d SHA-1: 43953fbd0e8dbff1d9cc328b564eb5de12da2702 SHA-256: 94ab3784b2a90845d610997f289f6615fc5d473dd0175207f81e4c2906c826a9
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The document contains numerous embedded URLs, many pointing to disposable domains, suggesting a phishing or link-farming attempt to redirect users to malicious content. The presence of external URIs and the link farm heuristic strongly indicate an attempt to lure users to external, potentially harmful, websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://golowaki.ru/wix?keyword=copper+chef+air+fryer+manual PDF link annotation
    • http://nasufulorejuwe.mywebcommunity.org/20022609918.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486981/normal_5ffaaa00251ba.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/dibofelilotu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477400/normal_6023d91208cb2.pdfIn PDF document text
    • https://cdn.sqhk.co/xubewarow/hhEcEAC/30917234938.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/fuzebakasapiwidovofajomi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365998/normal_5fcca81be7e9e.pdfIn PDF document text
    • https://cdn.sqhk.co/pisomuma/ahhhiOw/pitopawolefimenabuwinum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488806/normal_5fe8a806f3fa7.pdfIn PDF document text
    • http://bewewafip.scienceontheweb.net/can_american_wii_play_japanese_games.pdfIn PDF document text
    • https://cdn.sqhk.co/todusukiraxi/mOggjgr/96523544706.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369914/normal_5febc9e3e2686.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415070/normal_5fe70ca032313.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jilevatawew.epizy.com/motorola_moto_g_2nd_gen_review.pdfIn PDF document text
    • http://wepezip.epizy.com/83595267077.pdfIn PDF document text
    • http://pejagezuwuki.epizy.com/how_to_unjam_a_ryobi_airstrike.pdfIn PDF document text
    • http://zixoxajoredipub.epizy.com/15869591286.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/html_css_templates_free_download_responsive.pdfIn PDF document text
    • http://daparetefofan.epizy.com/51480299803.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_off0000f65e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65E 5084 bytes
SHA-256: 92488c9eae3e2822bf25a1742c350fb82f789c0490bd7504cbe8d76117154e02
font_01_sfnt_off00010787.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10787 10520 bytes
SHA-256: c29763a4d030b11a9374984aa0952b7cc02e356f01ca453a250f2919f42da268

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