Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa0ce797258b903…

MALICIOUS

PDF

65.3 KB Created: 2021-02-20 05:17:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 5b77748be85fdd22053e7ad65dd7ecd3 SHA-1: 517ffb56e915f634cc5ec24e8e91a3edb72d2e2f SHA-256: eaa0ce797258b903472c0ad6a33c434982280f569028d0262586d891032f68ba
126 Risk Score

Malware Insights

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

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 of which point to disposable hosting and appear to be part of a link farm, suggesting a phishing or malware distribution attempt. The presence of external URIs and the overall structure indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/wix?keyword=minecraft+pe+0.15+0+apk+mod PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4457000/normal_5fcc2c4e2c079.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410462/normal_602034b4c5e42.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/xamifunidoxo.pdfIn PDF document text
    • http://reactivaperu-2020.com/zabibebixitonijumejalifuxiyt8c.pdfIn PDF document text
    • https://ximavubakalik.weebly.com/uploads/1/3/0/7/130776508/xabasufejotog.pdfIn PDF document text
    • https://cdn.sqhk.co/fokatekox/haQjizM/village_city_island_sim_2_apk_free_download.pdfIn PDF document text
    • https://pejasosujotu.weebly.com/uploads/1/3/2/6/132683127/6185158.pdfIn PDF document text
    • https://cdn.sqhk.co/vifamepupib/ehajiKn/30183696183.pdfIn PDF document text
    • http://chestlune.online/dsc_832_clear_trouble_lightxxnj8.pdfIn PDF document text
    • http://vnds-super.space/alcoholismo_en_adolescentes_libros3bhw5.pdfIn PDF document text
    • http://romeita.fun/classic_cars_for_sale_in_michigan_under_50004nhkw.pdfIn PDF document text
    • https://xigeworimejol.weebly.com/uploads/1/3/1/4/131483719/mafaxulokabep.pdfIn PDF document text
    • https://femesavez.weebly.com/uploads/1/3/1/3/131383434/donenokus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424683/normal_6010859e58dbd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408584/normal_5fdf37c6e93b0.pdfIn PDF document text
    • http://smeh-mif.space/neighbor_home_smasher_apk_android_oyun_clubm0nkc.pdfIn PDF document text
    • https://cdn.sqhk.co/bujiwamovul/ozhghhw/mebogoxogasubenujeloxave.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/cLuhcgg/best_virtual_girlfriend_app.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/vabedafozo/breadman_tr875_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/guide_post_hotel_bradford_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/nugegopipuzotorowolan.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/pijunidiw.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/is_lucifers_twin_brother_an_angel.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_off0000c24c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24C 5512 bytes
SHA-256: e37b9885320e03aa50b30a67011e6c99298c8ceb7f7138a8b37d60ee6a3b8b09
font_01_sfnt_off0000d515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD515 11008 bytes
SHA-256: 8c03640c42167402fd454d6d81c33a12505eeba4e0ed47b163861da8163057f2

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