Malicious PDF — malware analysis report

Static analysis result for SHA-256 af8a9d3109c266f4…

MALICIOUS

PDF

86.8 KB Created: 2021-03-20 15:38:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: f70b60b6dad48513cdd109f928a26f04 SHA-1: 5c97b41086c4497eb70c1947bb3a502397622ed6 SHA-256: af8a9d3109c266f4aafeded9885b0f48da7c523f2b0f604d2eaa63059b2ecf77
186 Risk Score

Malware Insights

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

This PDF document contains numerous external links, many hosted on disposable domains, suggesting a link farm or SEO spam operation. The document body, though heavily obfuscated, contains text related to 'watch the lion king 2019 online free dailymotion', indicating a lure to potentially malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • 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://seumenha.ru/wix?keyword=watch+the+lion+king+2019+online+free+dailymotion PDF link annotation
    • https://minizejemeroro.weebly.com/uploads/1/3/2/7/132740725/7615188.pdfIn PDF document text
    • http://midesamipazizuj.scienceontheweb.net/92472411125.pdfIn PDF document text
    • http://bebosebe.66ghz.com/sheet_pan_fajitas_vegetarian.pdfIn PDF document text
    • http://blancer.xyz/8799917957usxll.pdfIn PDF document text
    • https://napuximijagebi.weebly.com/uploads/1/3/4/7/134766840/0b1ffc70.pdfIn PDF document text
    • https://zuvimetuna.weebly.com/uploads/1/3/5/3/135304981/1b26e1871904512.pdfIn PDF document text
    • http://kaxiwemusemoj.mypressonline.com/linksys_re2000_blinking_light.pdfIn PDF document text
    • https://xafituku.weebly.com/uploads/1/3/4/8/134863640/0338b1.pdfIn PDF document text
    • http://kemikavar.mypressonline.com/statistical_methods_for_the_social_sciences_fourth_edition.pdfIn PDF document text
    • http://toppiksnack.xyz/2261390100wfqfx.pdfIn PDF document text
    • http://vegunax.getenjoyment.net/akbar_birbal_stories_free_download_in_kannada.pdfIn PDF document text
    • http://balifruit.com/319184802027a62m.pdfIn PDF document text
    • http://ninotekega.mygamesonline.org/dementia_a_drug_induced_crime_on_mankind_free_download.pdfIn PDF document text
    • http://xufamorazogubov.sportsontheweb.net/python_learning_courses_free.pdfIn PDF document text
    • http://lg-copyrightforms.com/73245117117yjdtp.pdfIn PDF document text
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/6260284.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vupaguriwedizid.atwebpages.com/46312694057.pdfIn PDF document text
    • https://5c839259-519f-4cee-a1a2-6639d654070b.filesusr.com/ugd/140efa_740d413bdb214fe0a174636a58f563c7.pdf?index=trueIn PDF document text
    • https://2aa89031-56ac-4de1-b828-aabe99840ec8.filesusr.com/ugd/cf14a4_ab228e115d24462ea9f8d4971eaadaf3.pdf?index=trueIn PDF document text
    • http://funazowo.rf.gd/ao_smith_35000_water_softener_manual.pdfIn PDF document text
    • https://c09438b0-f1cf-4ade-afa2-d322e048c450.filesusr.com/ugd/313cc6_7978eff1c8094b98bedc15f7a0af9a87.pdf?index=trueIn PDF document text
    • http://laxukumelukadut.myartsonline.com/dr_scholls_pedicure_foot_spa_instructions.pdfIn PDF document text
    • https://9e0ebcba-7e04-41ac-afc6-cfc574163c15.filesusr.com/ugd/6725b5_c037816bc5d046aab77065b4e8edac33.pdf?index=trueIn PDF document text
    • http://sofibimibojas.myartsonline.com/kill_team_core_game.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_off000112f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112F4 5916 bytes
SHA-256: 758c47e2ed349b2b9f77b5d5bbeaecd3d12125672414454ee31954b7eef607ae
font_01_sfnt_off00012711.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12711 11372 bytes
SHA-256: 16de3d7f9583ecba44bf99fe05807e876c09f8078757ed08e7c02d3b1119459e