Malicious PDF — malware analysis report

Static analysis result for SHA-256 003ff61fe0d4dbff…

MALICIOUS

PDF

70.1 KB Created: 2021-02-14 02:03:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7a9bc2c2737f6b69d3b71c7553746e8c SHA-1: aa70778a7315954b0da93934edc927eb3a6df83c SHA-256: 003ff61fe0d4dbffffe2e351dd137333835bdc48d55bc0621fbf7c120083c808
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://bologen.ru/wix?keyword=cos+in+terms+of+cot PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464702/normal_600e785fc3c84.pdfIn PDF document text
    • https://cdn.sqhk.co/temirikuji/OE2igzm/roller_coaster_arcade_ride.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/ggghjXP/mefibog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484641/normal_6016de42ea675.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/jW4cAgj/the_lighthouse_mermaids_and_madness_scene.pdfIn PDF document text
    • https://cdn.sqhk.co/lululitoj/gfsggb4/kexerekeniborojevivizo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469863/normal_600145193ea75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471971/normal_6004fe26c799f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470521/normal_6021797877cc6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375071/normal_601586067c90f.pdfIn PDF document text
    • http://nugekurobeju.iblogger.org/maguvawirun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419851/normal_5fe73875f3ee3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414156/normal_600df717cdb23.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zemipajobo.rf.gd/hibike_euphonium_piano_sheet_music.pdfIn PDF document text
    • http://jogisav.epizy.com/blue_bloods_season_2_episodes_guide.pdfIn PDF document text
    • http://tuserigetov.rf.gd/black_eyed_peas_audio_songs_free.pdfIn PDF document text
    • http://rudufegasavu.rf.gd/brics_full_form_in_english.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_off0000bf9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF9F 4692 bytes
SHA-256: 2e8821d1274d5b6eb654e1db869132888c92ff6e82e4243f738518d393160552
font_01_sfnt_off0000cf7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7E 11688 bytes
SHA-256: ed96a21326323fe5487c3666b1bd660399698ed32c0ea2a6989e5d4bc8afb025
font_02_sfnt_off0000f5cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CB 16348 bytes
SHA-256: 999f5b9e24082751e36bf8ce3efc51544f279e2159ab1ce8ad035bddbbd64011