Malicious PDF — malware analysis report

Static analysis result for SHA-256 f674cab466f76026…

MALICIOUS

PDF

70.2 KB Created: 2021-02-13 17:25:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3ff583e071d29dfeaf7aff7298318c8d SHA-1: 2063a6127492819d3f0320b051459b3b590703b7 SHA-256: f674cab466f76026a24bcae80165d3f3ccb6c7783b7195bd840b198e9353f4bf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=appcake+apk+download PDF link annotation
    • https://dobetabuzaduguz.weebly.com/uploads/1/3/5/3/135312815/4445471.pdfIn PDF document text
    • https://fufiwixafuwisu.weebly.com/uploads/1/3/4/7/134770326/a5313593a332b70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382631/normal_6013b4101d7fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382618/normal_5fc66eb4b5db4.pdfIn PDF document text
    • http://tesocoin.online/yamaha_town_mate_t50-_t80_service_manual15nq1.pdfIn PDF document text
    • http://susurrus.space/network_systems_administrator_job_descriptionkuoqw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417534/normal_5ff9e66e072f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369638/normal_600e74a97f5f8.pdfIn PDF document text
    • http://sfhgfje5df.xyz/876109038211ns0q.pdfIn PDF document text
    • https://mejatuwunuzawe.weebly.com/uploads/1/3/0/7/130775850/ruruw.pdfIn PDF document text
    • http://mybestchan.online/art_and_design_evaluation_sheetluq35.pdfIn PDF document text
    • http://bogplaktnc.fun/upkar_movie_sabwapmky02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453540/normal_601a3a1ee8ebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tupomomi.rf.gd/mifirebarad.pdfIn PDF document text
    • http://kapizepaninufo.epizy.com/wow_vanilla_arms_warrior_leveling_guide.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_off0000d922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD922 4936 bytes
SHA-256: bf4f4c9f7783d88c459f70b43eeb5a2d44eab022b761753c66c3dd41eb94ddcb
font_01_sfnt_off0000ea16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA16 9956 bytes
SHA-256: c4b258b89fdb0b2dbaa88f16f5c2eae3e50461c178ce3c81af20480ff85e5d63