Malicious PDF — malware analysis report

Static analysis result for SHA-256 919009a1da184dc1…

MALICIOUS

PDF

64.3 KB Created: 2021-02-18 02:07:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 55e9a7d9023fd732233b75cb9de1e9f7 SHA-1: 0c03de21182b71281a4529b7fab843c7a0629a5a SHA-256: 919009a1da184dc14a0d11fd1534afce9d91d46c52695e2ebc2840f81e2e7182
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/wix?keyword=murray+mowers+manuals PDF link annotation
    • http://pe50off.pro/mr_sandman_the_chordettes_freei4w1q.pdfIn PDF document text
    • http://playmarket-online.com/vegugelewosonisomuluwuguzkksp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454575/normal_602545c8a40d6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383308/normal_5ffffb3d39602.pdfIn PDF document text
    • https://cdn.sqhk.co/kibizatududo/Sgdaibt/foosball_table_for_sale_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388060/normal_60043f5d6a700.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/ighhogi/59266138336.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381289/normal_5fda3d4330e38.pdfIn PDF document text
    • https://cdn.sqhk.co/vasozaponem/UjgSu6T/jump_zombie_chapter_25.pdfIn PDF document text
    • http://mirror-x.org/48273356415ezhlm.pdfIn PDF document text
    • https://vowodilob.weebly.com/uploads/1/3/4/6/134697463/dazaw_tulolovunofe_goxikoxuvamewa.pdfIn PDF document text
    • http://lngcliente.com/26817981827jwp9t.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/zupenafud/cdc_treatment_guidelines_for_sinusitis.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/color_sheets_for_kindergarten_students.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_off0000c048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC048 5028 bytes
SHA-256: ad926856799eb2a695ce65c547f073bcece1e22fe55c61dd685c17e39effd0b4
font_01_sfnt_off0000d16a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16A 10396 bytes
SHA-256: c2b4daaa29d32c0d6698234ca34d83e28af01fa718b4e7344ef38a53e087917d