Malicious PDF — malware analysis report

Static analysis result for SHA-256 99658b0f62b7ec66…

MALICIOUS

PDF

69.3 KB Created: 2021-02-26 07:22:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8154fc235edb05358dcbfd00d97e2d37 SHA-1: a5745e6954f32683773b66a18465380e01809cce SHA-256: 99658b0f62b7ec660dd40e81efbe4de88f3a3e0d2734c299e106c82cd6d7423f
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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/award?keyword=miller+trailblazer+250g+weight PDF link annotation
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/pazapotutaw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444366/normal_6008bfcccfed3.pdfIn PDF document text
    • https://lojavexir.weebly.com/uploads/1/3/5/9/135963097/kisumenakimogujexexi.pdfIn PDF document text
    • https://gebedosoxabitox.weebly.com/uploads/1/3/5/3/135324181/sikelotinet-gubejedizemi-farilibofefor-govojujemir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389821/normal_6021fa9922640.pdfIn PDF document text
    • http://wemuwetafivaxe.sportsontheweb.net/rafadozekijegipur.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/xbox_one_s_controller_bluetooth_pc_pin.pdfIn PDF document text
    • https://fosijegaden.weebly.com/uploads/1/3/4/8/134868146/2374664.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379049/normal_5fd63aa391a99.pdfIn PDF document text
    • http://lumobumekola.getenjoyment.net/sc_dmv_permit_practice_test_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448985/normal_5fcff03dc73b8.pdfIn PDF document text
    • http://sodahq.club/the_two_brothers_anpu_and_bata_storysyrzj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382627/normal_6023cb08df334.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://remigesej.epizy.com/54676401755.pdfIn PDF document text
    • http://fidosofesus.rf.gd/how_to_renew_your_drivers_license.pdfIn PDF document text
    • http://renezaw.rf.gd/13484534593.pdfIn PDF document text
    • http://rojanesifilagu.myartsonline.com/what_do_the_dead_sea_scrolls_say.pdfIn PDF document text
    • http://febuner.epizy.com/tp-link_tl-mr3020_repeater_setup.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_off0000c85b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC85B 5024 bytes
SHA-256: eb367a5df28d35337b7099ff46b43012a6dbe0e1b5eac8764363ad6c6cad364a
font_01_sfnt_off0000d999.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD999 9556 bytes
SHA-256: f5b0990610f7f57dd83f48636b8dc508440c0a1fba11c301ee7c38eab3feac31
font_02_sfnt_off0000fa37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA37 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333