Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a8ff450b222d50…

MALICIOUS

PDF

72.6 KB Created: 2021-01-27 10:32:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 94400536cb3304ccbbb80e500e14cac1 SHA-1: d052d52710cefd92385cd2541ac65b39b91b82e5 SHA-256: 02a8ff450b222d5048e688751fef7ffe6ecee9256990306c402fa6f8af2b9384
74 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=car%20payment%20calculator%20with%20taxes%20and%20interest PDF link annotation
    • https://cdn.sqhk.co/vuxesojogugu/iihIhaT/zombie_frontier_2_gold_hack_apk.pdfIn PDF document text
    • http://fortuneo.best/90918310843pxh4h.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/bjb7ja7/saver_reposter_for_instagram_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/xumefotebe/jgjgieH/metal_slug_6_atomiswave.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/ctohh78/emotional_freedom_technique_gary_craig.pdfIn PDF document text
    • https://biteledazuxol.weebly.com/uploads/1/3/4/3/134315761/75c9b0.pdfIn PDF document text
    • https://jupufafel.weebly.com/uploads/1/3/2/7/132740723/96809ec5.pdfIn PDF document text
    • https://fuzewejobedogu.weebly.com/uploads/1/3/1/4/131482867/8621687.pdfIn PDF document text
    • https://cdn.sqhk.co/fuludasowipu/ajgjjYL/45474654260.pdfIn PDF document text
    • https://vufupobuzalezu.weebly.com/uploads/1/3/4/8/134853030/bilajojilebatote.pdfIn PDF document text
    • https://duxegebipuvakij.weebly.com/uploads/1/3/4/0/134095857/7679036.pdfIn PDF document text
    • https://fenotitejov.weebly.com/uploads/1/3/5/3/135316040/878034.pdfIn PDF document text
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/1811772.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/wutisigila/38258581147.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/hepatitis_a_cdc_information_sheet.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_off0000decb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDECB 5480 bytes
SHA-256: 27485259db4c92db70547123ce012c7414f72eca35ee237656be87f61ca4ba26
font_01_sfnt_off0000f15a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15A 10564 bytes
SHA-256: 45d13d3f84a6ef6da6951f78d3c05d30c607abbee0fa71945c88017dd0051a26