Malicious PDF — malware analysis report

Static analysis result for SHA-256 2036656bfbee8a0f…

MALICIOUS

PDF

69.9 KB Created: 2021-02-22 22:59:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4026493ca9a9d74c395f24f424df3927 SHA-1: 2645257af5f21ed03bcd623652a95275d85e4ba3 SHA-256: 2036656bfbee8a0f13029ee7be792f0f7425a93a252e5008a07d5124a3067988
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/aws?utm_term=the+adventures+of+tom+sawyer+and+huckleberry+finn+full+movie PDF link annotation
    • http://goodsun.space/skyrim_alchemy_guidebamq5.pdfIn PDF document text
    • https://cdn.sqhk.co/kunimanujage/0CidjcP/gezukisofideme.pdfIn PDF document text
    • http://the-job.ru/jirasibamudoxinelonef22agy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404987/normal_602212f900f49.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobita/jijeoji/jakafi.pdfIn PDF document text
    • http://my-favshopg.online/jivavezazewejivitie0q88.pdfIn PDF document text
    • https://cdn.sqhk.co/gotoruzud/sgdXuRp/hanayama_puzzles_level_5_spiral.pdfIn PDF document text
    • http://baltika-trans.ru/soundbot_sb240_manualscoz8.pdfIn PDF document text
    • http://kreativoblako.com/substantivos_biformes_listaq9ayi.pdfIn PDF document text
    • https://cdn.sqhk.co/xurawupo/jeaiIFn/21025428765.pdfIn PDF document text
    • http://obsluzhivanie-kompyuterov.moscow/334914475642n9u9.pdfIn PDF document text
    • http://jnatural.space/236272249965ic4j.pdfIn PDF document text
    • http://takodevizol.iblogger.org/25042075248.pdfIn PDF document text
    • http://shtangennstutkupitseychas.xyz/simakod8e1zd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456687/normal_60078ab7a7c80.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d1ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1EE 5668 bytes
SHA-256: 0dabfcb9e3749203962a7d7969dc7d24e0c4f277d5baecb1cbd0d7e11b2bff86
font_01_sfnt_off0000e526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE526 10996 bytes
SHA-256: 5fa59b2707478685c83a45303366f7a3aa52b23b2340023923c01efdeac0a843