Malicious PDF — malware analysis report

Static analysis result for SHA-256 b252e5c08ee5ef10…

MALICIOUS

PDF

66.3 KB Created: 2021-01-30 23:19:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 69ad9198095d898a9a300e916d7f0796 SHA-1: 0ba8cc205cbcf7f8b6842bfde26e79413b938109 SHA-256: b252e5c08ee5ef100bb88499f39504c34daf58738cfacc1dc63d351711348ff5
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://jacksth.ru/123?utm_term=thermarest+prolite+plus+stuff+sack PDF link annotation
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/8c84751a1805.pdfIn PDF document text
    • https://sakirirolero.weebly.com/uploads/1/3/1/3/131383462/fe4a44676.pdfIn PDF document text
    • https://fokifukamanur.weebly.com/uploads/1/3/0/8/130874497/pasasilumunalef-sobeja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465149/normal_6010e50940848.pdfIn PDF document text
    • https://buxomajuse.weebly.com/uploads/1/3/4/5/134588570/70f2f1dad585.pdfIn PDF document text
    • https://wopokajam.weebly.com/uploads/1/3/0/8/130874492/2070676.pdfIn PDF document text
    • http://maykistore.ru/767534257160bgff.pdfIn PDF document text
    • http://indohealth365.online/amiduos_lite_64_bitan19i.pdfIn PDF document text
    • http://maslovauto.ru/retro_bowl_tips_runningygv04.pdfIn PDF document text
    • http://biomaniix.website/50623068667eokwl.pdfIn PDF document text
    • https://kiwotatuna.weebly.com/uploads/1/3/1/8/131856308/9854242.pdfIn PDF document text
    • http://wwwbcpzonasegura-viabcp.com/nuwawekluv0r.pdfIn PDF document text
    • http://websporizle3.com/2647459772541s03.pdfIn PDF document text
    • https://xalitizamer.weebly.com/uploads/1/3/4/8/134863297/0a13a60b6e1e2.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/jenagubadopi/halftime_report_stock_picks.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_off0000c3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AB 5268 bytes
SHA-256: 594430cdc89ae5400d23b24f7ce7d998d101e8978397f518c8980f7baebdc60e
font_01_sfnt_off0000d568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD568 11124 bytes
SHA-256: 7d9dc764cc9163f67a1c4a988e08d521a5352eec33f08da7794a467c9372e08e