Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5a8220cb6f8478e…

MALICIOUS

PDF

70.3 KB Created: 2021-01-30 01:31:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 2aef7a69afeb6f0077689e05428d79c9 SHA-1: 71e72ce59ebf8569dcdbca3b46db5624318b00e0 SHA-256: f5a8220cb6f8478e5358a857e482a3a9628db857a927a04195c069b36cd52d79
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/123?utm_term=ms+word+vocabulary PDF link annotation
    • https://tupeduwexawagov.weebly.com/uploads/1/3/1/6/131607208/makebume.pdfIn PDF document text
    • https://fejaxipanegis.weebly.com/uploads/1/3/2/7/132712099/loduxabafas_jabadagid_magilejixapix.pdfIn PDF document text
    • https://cdn.sqhk.co/vilomikov/iibjfic/world_war_2_british_bombers_pictures.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457849/normal_600aaa7d208e4.pdfIn PDF document text
    • http://austritkfa.com/gavepurimef3c4ai.pdfIn PDF document text
    • http://trikotoria.ru/super_simple_songs_baby_shark_videosquis.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/VRicSji/amazon_echo_dot_1st_generation_setup.pdfIn PDF document text
    • http://salet.store/80908529780zij0w.pdfIn PDF document text
    • http://affilateapp.online/zapumibafolab8spo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493282/normal_5fd0b568e5e93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449600/normal_5fd65c2673054.pdfIn PDF document text
    • http://shopsmmv.site/pifefuzenelorepunojetisba2e.pdfIn PDF document text
    • https://cdn.sqhk.co/kasesiseb/Ngjhdji/83079905793.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368221/normal_5fef3a6dca880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424637/normal_5fd0e553b8a70.pdfIn PDF document text
    • https://roralolew.weebly.com/uploads/1/3/0/7/130775143/571802.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/YkOhgUX/gevasomalidaxix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nogojituwizax.epizy.com/xezuzer.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_off0000d5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5AB 5332 bytes
SHA-256: 5f8fc7e2be89935021881d85813d94cf800a9597888fd3a5a4c9144bc3f1ef2c
font_01_sfnt_off0000e801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE801 10720 bytes
SHA-256: 665d8b29fb98db4b9082ff45cae771948acea1cc9a3ca1981f101882ccccaef6