Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc5d13671b598bc0…

MALICIOUS

PDF

71.5 KB Created: 2021-02-15 09:50:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ad5c59a96c070dc9aeb95288186736b6 SHA-1: 14b154d8e1b55c17eff2d1939fd5582afdc15042 SHA-256: bc5d13671b598bc08ce14041459e69eddaaed6471585194d98c0d5f0a79d2767
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://jottigo.ru/wix?keyword=double+a+arcade+bonk PDF link annotation
    • https://cdn.sqhk.co/tinipuded/jeMPgff/avast_mobile_security_antivirus_pro_apk_download.pdfIn PDF document text
    • http://joy-todays.online/business_organization_and_management_book_freeztcpw.pdfIn PDF document text
    • http://italywow.space/endless_love_the_myth_piano_sheetznzjk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369307/normal_600b9f608c89a.pdfIn PDF document text
    • https://kunubixofatefif.weebly.com/uploads/1/3/4/0/134096788/kexexixuxoxure.pdfIn PDF document text
    • https://cdn.sqhk.co/jikikavadaja/jfWCniY/drift_classics_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382953/normal_5fe9b66c81f83.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/gehgibo/big_blue_marble_academy_daycare.pdfIn PDF document text
    • http://jobware.pro/gta_san_andreas_revdl_android_downloady5yb1.pdfIn PDF document text
    • https://sudopefizumizer.weebly.com/uploads/1/3/1/3/131383323/nelaxulofefimeduwotu.pdfIn PDF document text
    • http://znatural.space/a_quiet_place_subtitles_english_downloadrv50r.pdfIn PDF document text
    • http://vizit.store/limidazgzmz.pdfIn PDF document text
    • https://cdn.sqhk.co/tumozaraf/ENJhc4E/stickman_escape_lift_2_funny_escape_simulation_game.pdfIn PDF document text
    • https://zafapuguma.weebly.com/uploads/1/3/2/7/132712217/6104088.pdfIn PDF document text
    • http://dfwshootersupply.com/kitunapuzifofasaginij9s7t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424024/normal_5fcd11f13da86.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488570/normal_602304ef8d10b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sifebina.epizy.com/nhs_self_certification_form_scotland.pdfIn PDF document text
    • http://gimokoso.epizy.com/8931060927.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD9C 4712 bytes
SHA-256: 292adfd78bef8a1e3149c293ecbc03211441c0802ba8afba27d765212b01414c
font_01_sfnt_off0000dda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDA5 10464 bytes
SHA-256: 0166fc60767d4c2d79cf7e95fef9f8c7c4e31380538c22ae55143a172a7b5a62
font_02_sfnt_off0001015c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1015C 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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