Malicious PDF — malware analysis report

Static analysis result for SHA-256 191571afe37736e8…

MALICIOUS

PDF

67.4 KB Created: 2021-02-12 18:00:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8cf6d521a70391fc1c195cd90faa672a SHA-1: 0d47a3fc42d25e4523a47d4b622cb236a45aaa9f SHA-256: 191571afe37736e8f7c6990d2cf539ba0feac04872599569b8666ea00cefb229
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/wb?keyword=chef%20boyardee%20font PDF link annotation
    • https://cdn.sqhk.co/rosafipex/glgiCC4/fake_knife_sound_roblox_id.pdfIn PDF document text
    • http://bnatural.space/pujivoxofeqb.pdfIn PDF document text
    • http://stonersfranchise.com/23720920779rq515.pdfIn PDF document text
    • http://idclick.cash/unblocked_games_zombocalypse_2_hackecbiz3.pdfIn PDF document text
    • http://wssummer.space/cut_you_off_song_lyricstr94f.pdfIn PDF document text
    • http://profaudit32.ru/55599305494bdbdk.pdfIn PDF document text
    • https://nemabofafuz.weebly.com/uploads/1/3/5/3/135389169/senofozupu.pdfIn PDF document text
    • https://kebolegenadudus.weebly.com/uploads/1/3/1/4/131454121/mewataxora.pdfIn PDF document text
    • https://cdn.sqhk.co/japedovak/gijRijJ/warplanes_ww1_sky_aces_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/ehcJpP2/american_civil_war_map_of_states.pdfIn PDF document text
    • https://jalebipozufi.weebly.com/uploads/1/3/5/3/135320073/garede_pixepusakemoput_xavav.pdfIn PDF document text
    • https://sewigemebovoneb.weebly.com/uploads/1/3/3/9/133997870/kavoseburupabubajiv.pdfIn PDF document text
    • http://finansi-7.online/360_performance_appraisal_definitionpakjy.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/hbHyOwo/11141464840.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/genedonapubefe/annexure_d_passport.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_off0000cb3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB3D 4932 bytes
SHA-256: b8046b7b582204da927b8e17c8dd66b69e2fa329cab666be8fc1de233db8cde8
font_01_sfnt_off0000dc00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC00 10884 bytes
SHA-256: df24567ed217cfff695745822a64956401fb4e29c3afa2c6c1868a39dccd63ad