Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f3405e761124f66…

MALICIOUS

PDF

72.6 KB Created: 2021-02-27 10:49:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 8cd04507fb349640d1de740aacae560a SHA-1: c8bc3a7a7f94e80999b455cfa266cfc636893b6c SHA-256: 2f3405e761124f66d19a9d1e7f4838c22577748212fb43bb3b7e44348c666f20
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/award?keyword=top+interior+design+schools+in+pune PDF link annotation
    • https://cdn.sqhk.co/dikozogub/ghJie9h/21088475810.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494883/normal_6016057b1fe23.pdfIn PDF document text
    • https://cdn.sqhk.co/devepogisog/jGhbicU/497433512.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412584/normal_600014a8c17f3.pdfIn PDF document text
    • http://japancar-sib.ru/318080639256juz2.pdfIn PDF document text
    • http://fartook.online/34902548588qas4f.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/MThcr47/41979756555.pdfIn PDF document text
    • https://lojopozubog.weebly.com/uploads/1/3/1/6/131606756/kufera.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461483/normal_5fe4f2ca306f8.pdfIn PDF document text
    • http://natbeach.space/19276541845qj9tc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470231/normal_6037ef33e56dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446924/normal_5ffc4da905783.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416510/normal_6015de5a4ef46.pdfIn PDF document text
    • https://cdn.sqhk.co/selusujava/hm9ctii/exoplanets_online_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420764/normal_6029a2021af34.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/dekogamik/91347108182.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_off0000e020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE020 5076 bytes
SHA-256: 5d988abc4bdc5dc9d9d4f3de6d062703b31c254b41d4e0df375a0063fea63df6
font_01_sfnt_off0000f163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF163 10604 bytes
SHA-256: ea845ad764b5f83718a8176b216927c2a59b0a88e091c1d0227cca3c38f8c9c5