Malicious PDF — malware analysis report

Static analysis result for SHA-256 2685e0869ed6370e…

MALICIOUS

PDF

50.4 KB Created: 2020-11-08 07:03:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 1f9660330e447ea85fb5a69d57ff3072 SHA-1: e5a6f25652ddf40fc684e89403d826e0345122a8 SHA-256: 2685e0869ed6370eebb3a0a334358ec3a5bc5fef596b4eaa0570c37040751eb4
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://traffset.ru/123?keyword=audience+hall+apadena+of+darius+and+xerxes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f87fd1417feb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367304/normal_5f876a4f0165a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_5f98e8d8d3622.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://rotadenig.files.wordpress.com/2020/11/82236523173.pdfIn PDF document text
    • https://pipemevo.files.wordpress.com/2020/11/xexuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2b9b337-ef93-49a8-9ead-2f145364a64b/bonakowikuxavojovemelexu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d8a81d-877a-44b4-804f-3a11c6d2a4cc/vojizeboranekuvelime.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/73406283808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46b670b3-5fcb-4b14-9fa3-3bb0570c336a/ralirokiwokubutorit.pdfIn PDF document text
    • https://korejon.files.wordpress.com/2020/11/xodanovomufuwikolitekeron.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/ain_t_no_sunshine_piano_sheet.pdfIn PDF document text
    • https://xiguxuk.files.wordpress.com/2020/11/mcheyne_reading_plan.pdfIn PDF document text
    • https://begirider.files.wordpress.com/2020/11/does_cbe_group_remove_from_credit_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b08dac3e-aa93-4dc8-833b-cc94a217be39/cooling_and_winter_llc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f73e557-b2ca-4101-a7db-55b19ffc3165/ruderovusitunoxepisi.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AD 5300 bytes
SHA-256: 0fa1b5bbd569332c62b5226ae1f8b7d4f56a61d53336d82645a6618733712f8e
font_01_sfnt_off000077ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77BA 11708 bytes
SHA-256: 76712ae5228a9e5bf0d39e5006525352094dbb6dd86809e3d63de8ce9cd9d7ad
font_02_sfnt_off00009eb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EB3 3288 bytes
SHA-256: 0c08aa40595fd4b14179099cb60c3c2926641d90f810670d058d45de1ed8790d
font_03_sfnt_off0000ab3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB3F 6500 bytes
SHA-256: cf82dd86a891deae0746daaa62c7ac573517c30d488af8c450e572bfca036dbd

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