Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8cfb6f33ecba3e4…

MALICIOUS

PDF

72.3 KB Created: 2021-02-16 06:32:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1192ce3233daba1d6d08cb00f312aedf SHA-1: ebf64742dfc6e3f1de1ac9671af087f9f4114a17 SHA-256: e8cfb6f33ecba3e4d57241e92a97193cdf6e20b4034255060502f7c875597447
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://baarspo.ru/wix?keyword=oyshi+sushi+portland+tx PDF link annotation
    • https://cdn.sqhk.co/loxowopiv/jiuwEia/41440406269.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455894/normal_5fe124fe88452.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/s6ghAje/clown_voice_changer_spirit_halloween.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/eHgihih/44287084129.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_6011943b16fbd.pdfIn PDF document text
    • https://cdn.sqhk.co/sezunofubuzi/42dgcTH/71968491792.pdfIn PDF document text
    • http://basiditdcf.space/canon_eos_600d_service_manualyw1yn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454286/normal_6010a211da700.pdfIn PDF document text
    • http://tevajevidiwa.22web.org/24874309200.pdfIn PDF document text
    • https://cdn.sqhk.co/suvotoruwot/j61NdMv/25123804074.pdfIn PDF document text
    • https://cdn.sqhk.co/xamowepap/KifieBZ/weird_funny_fighting_games.pdfIn PDF document text
    • https://cdn.sqhk.co/dojozafo/nUgdges/picsart_background_hd_photos_new.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385198/normal_6018a7e678490.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://karababeso.rf.gd/39403918763.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/middle_fork_flathead_river_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/baxutexa.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/gotiduditorojulozub.pdfIn PDF document text
    • http://runumap.rf.gd/45648422093.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/lowov.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC989 5244 bytes
SHA-256: 97e380b5b6fe84b6cf385f9d4b6d1bd445e190726c4fabde43f11746c5976786
font_01_sfnt_off0000db5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB5C 10412 bytes
SHA-256: 7c17a549369709fe2ac2bb89852a4a454f3639930b704f8dab66a2279b5d6884
font_02_sfnt_off0000ff4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4C 16036 bytes
SHA-256: 354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb