Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e21b7d494e5d049…

MALICIOUS

PDF

67.2 KB Created: 2021-02-23 16:38:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 770e1fb983286cd2f7b89b4c50332a92 SHA-1: 45fb0818e0847ce3daab3171f257776daf5b67e0 SHA-256: 1e21b7d494e5d049fd7bfafc04c4ebf5855d0c7d38e41dc66fcc23e6b2f58c99
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=general+mills+joplin+mo+products PDF link annotation
    • https://cdn.sqhk.co/wojipezusax/ifJ9eK7/bipugov.pdfIn PDF document text
    • http://vijufik.iblogger.org/aashiqui_2_movie_hd_1080p_free.pdfIn PDF document text
    • http://siankaanmexico.com/gastroparesis_diet_sheet_ukki5g9.pdfIn PDF document text
    • https://cdn.sqhk.co/bujiwamovul/chihgeC/red_ball_3_gra_online.pdfIn PDF document text
    • http://doworevo.22web.org/tebekogixovaduwesejape.pdfIn PDF document text
    • http://bujinolemisizam.iblogger.org/bunker_hill_500_lumen_solar_security_light.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/ijjh8ie/rollercoaster_mania_game_guardian.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371791/normal_5fcbe93d5b694.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/nonipesikiri/fepefive.pdfIn PDF document text
    • http://fafuwite.epizy.com/what_are_smart_textiles.pdfIn PDF document text
    • http://zimeketoxera.epizy.com/xuxelusopufajago.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/pupobe.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/34633551943.pdfIn PDF document text
    • http://valogaberel.rf.gd/25130086224.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_off0000cb10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB10 5324 bytes
SHA-256: 46f51874ea2cfe5929e3e6cc57aec9e993f19dd1a5d0e5d7eb06ef1a17ef70a7
font_01_sfnt_off0000dd1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1A 10204 bytes
SHA-256: e8cfc4c71257f45c0cc8f19e6027375e60b9c92072f908a2e2b3708cbe301260