Malicious PDF — malware analysis report

Static analysis result for SHA-256 410fccb1eabf89bb…

MALICIOUS

PDF

70.3 KB Created: 2021-01-22 02:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ecf9bea1135ffd1476693ad516cc4d2e SHA-1: 30adaa2a2fccb7950b620cb3ac9bce79ce920a48 SHA-256: 410fccb1eabf89bbb936ddbce64c31a98185cb07046cd6b1b77cee6f19ce52ad
126 Risk Score

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://leonvi.ru/wb?keyword=dont%20touch%20my%20phone%20wallpapers%20cute PDF link annotation
    • https://rajidekexosixi.weebly.com/uploads/1/3/0/7/130738830/7019681.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453102/normal_5fd38618d89d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446650/normal_5fd9d9a92c204.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/jegeKvs/moto_rider_go_highway_traffic_games.pdfIn PDF document text
    • https://matexofetuboso.weebly.com/uploads/1/3/1/4/131453592/towemolaxo.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/hegHUgg/individual_soccer_goalkeeper_training_drills.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449968/normal_5fc854426d080.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416934/normal_5ff3886157902.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458618/normal_5ff36e35f3d70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413122/normal_5fd387858795d.pdfIn PDF document text
    • https://gepavemu.weebly.com/uploads/1/3/4/8/134861499/89e9c35141b5b4d.pdfIn PDF document text
    • http://wavasesinile.22web.org/lectron_carb_tuning_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/geX4jgk/the_black_room_movie_netflix.pdfIn PDF document text
    • https://cdn.sqhk.co/bigulikexupa/KjgLJgf/finefenajimosezujiruwopek.pdfIn PDF document text
    • http://duxogesubuz.22web.org/pawowewa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451231/normal_5fd61182cca61.pdfIn PDF document text
    • https://cdn.sqhk.co/daladovum/tRLughD/tawepajuti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vezoxonu.epizy.com/4g_speed_up_internet_lte_on_android.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_off0000d651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD651 5368 bytes
SHA-256: b98cd330216c153f59ed30bcd6e5f588fbf7a8cd226dec391cc173210c6a6d71
font_01_sfnt_off0000e87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87E 10452 bytes
SHA-256: d41cd2aa45955139609611ce638e11a9d0c54a02190718c17c911d035bed8406