Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7739f74d6ad2db2…

MALICIOUS

PDF

72.9 KB Created: 2021-02-19 09:11:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 928970c71ff9a9151a4eee03e5e7a277 SHA-1: 7f44e3f325700822fa608f0401dbc47d15e21819 SHA-256: c7739f74d6ad2db2d07ebaa33169b393e15cd2a736523fef7b9c478aa76eca15
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/wix?keyword=dyer+lane+sarasota+florida PDF link annotation
    • https://wewejemaviga.weebly.com/uploads/1/3/4/2/134235466/rilanop_kavodezu_gajota.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/jgihgja/83119984692.pdfIn PDF document text
    • http://scotiaenlineape-personas.com/uber_car_booking_app_freeplbv3.pdfIn PDF document text
    • http://foyou.store/fuwegavunixijakcfs4p.pdfIn PDF document text
    • https://cdn.sqhk.co/gabisolovima/he8ljfB/earn_to_die_2012_unblocked_4_life.pdfIn PDF document text
    • https://fuzedefona.weebly.com/uploads/1/3/4/5/134578490/lomezidadavelebibe.pdfIn PDF document text
    • https://cdn.sqhk.co/womawuxinuge/rIVifih/miputexidilisin.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/niaZfhc/financial_times_graphics_covid_19.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402294/normal_602af900548ed.pdfIn PDF document text
    • https://wovovude.weebly.com/uploads/1/3/1/3/131397940/tepavukinedoz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485930/normal_5ff493b8474f7.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/ashaBjd/92830026098.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/hfsChhf/lolukikorinadodusufa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365642/normal_600497498d9db.pdfIn PDF document text
    • https://cdn.sqhk.co/xufatirumina/igiejco/mountain_bike_parts_and_accessories_for_sale.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://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_off0000d245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD245 4788 bytes
SHA-256: 39529084daa4b6f1bca92fb171a5d7873ca48ad5f8e914630e403626d68f8f47
font_01_sfnt_off0000e2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A4 11600 bytes
SHA-256: 6e6f1c191a7d0b817294cbc87f956c3515aaae60e5e8aee51294391f01dea036
font_02_sfnt_off000108e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108E3 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361