Malicious PDF — malware analysis report

Static analysis result for SHA-256 55e45b3e3960eaf7…

MALICIOUS

PDF

70.0 KB Created: 2021-03-11 16:42:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1afc6f2719e144420d219ba192e6b0f2 SHA-1: 99e6f89e4a394e76c376c3226827bdae9d88b583 SHA-256: 55e45b3e3960eaf784d3d71a6c8e2d7bc6257a78038e2868ddfeb1f112ae00b4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/wix?keyword=unit+4+linear+functions+mid+unit+assessment+answers PDF link annotation
    • http://korsabarca.com/86502596552cspxn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473654/normal_600d09287b7c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380699/normal_5fe9236d13cfb.pdfIn PDF document text
    • https://cdn.sqhk.co/tamireto/4nt0gh5/dunk_lords_xbox_controls.pdfIn PDF document text
    • http://vienvozvrat.site/18788788090umar0.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/iggieBB/miranda_lambert_age.pdfIn PDF document text
    • http://energierecrute-emplois.com/37024501072uyyya.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456685/normal_60322d17b284a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403940/normal_600d9bb531677.pdfIn PDF document text
    • http://nosinoski.shop/77402126806ka3u5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409814/normal_5feb78d48823c.pdfIn PDF document text
    • http://o-karte-kopilka.com/top_stocks_to_buy_motley_foolzhpvk.pdfIn PDF document text
    • http://eyebrowthreadingdallastx.com/webesobirebujodrgsc4.pdfIn PDF document text
    • http://antileqphh.site/madden_mobile_free_coins_no_surveyh6y76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412896/normal_60354ec721650.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381287/normal_60400573e1257.pdfIn PDF document text
    • https://cdn.sqhk.co/sadopore/L4jjlii/rabemoranamexepa.pdfIn PDF document text
    • https://cdn.sqhk.co/xenumobavun/rji4qGk/96128767850.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452588/normal_5ff771ea38ab5.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/saziwijaxodav/imbuement_guide_tibia.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/sunri_meri_behna_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/kibopiwomake.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/sivijuzale.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/sylvia_day_spellbound_series_order.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_off0000d603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD603 5340 bytes
SHA-256: a8393eee60427ce4d5a9345653543f8fb4be175400a7ada2fb0e9e321dc85a41
font_01_sfnt_off0000e82e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82E 10024 bytes
SHA-256: 2a50a932b5a0880e1c4a8af92f8df59859a3c9de47408dee873cf878d3de1ea2

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