Malicious PDF — malware analysis report

Static analysis result for SHA-256 37d4eca03c2b5b46…

MALICIOUS

PDF

74.7 KB Created: 2021-03-03 00:18:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 223f5bd9af902a7799b1e1d522e996d2 SHA-1: bc893e90250f63e05b07ef09f29dfa6f80d16c6b SHA-256: 37d4eca03c2b5b46c6d65f31528b35092bc5d16e1d2183931393a06056ee0799
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://baarspo.ru/award?keyword=how+to+clean+coffee+maker+with+clean+button PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473403/normal_600d3b83f2ce3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447258/normal_5ff185c77d8da.pdfIn PDF document text
    • https://cdn.sqhk.co/xivomojuf/inid5ij/radio_rock_1_playlist.pdfIn PDF document text
    • https://cdn.sqhk.co/zujubiviv/crHb8Ag/amc_30_dunvale_houston_movie_times.pdfIn PDF document text
    • http://vivezotutune.iblogger.org/rincian_apbn_2019.pdfIn PDF document text
    • https://lusenivusimutom.weebly.com/uploads/1/3/4/8/134887898/naposakimumojakuxufo.pdfIn PDF document text
    • https://cdn.sqhk.co/bagudivibi/jb1NjcC/gagewixo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455396/normal_5fea39fec21b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418963/normal_5ff813d814afc.pdfIn PDF document text
    • https://zabojipenow.weebly.com/uploads/1/3/1/6/131636987/xupisimo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375083/normal_60253a9a749f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://paviremepofuvu.epizy.com/23953380682.pdfIn PDF document text
    • http://gusozafameximi.epizy.com/cara_buat_akun_facebook_baru_di_android.pdfIn PDF document text
    • http://bixerexexotepe.rf.gd/english_textbook_for_class_10_ncert.pdfIn PDF document text
    • http://javasuk.epizy.com/19803488539.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_off0000e8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D2 5200 bytes
SHA-256: 1ef775344cf6d3614a74c7117b499e058b7af222298c14a4e45e1bf217f28c46
font_01_sfnt_off0000fa6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA6F 10404 bytes
SHA-256: f91c14c159d48cbe5a1a10ae9aa374e0743c026e2b276fe1343aa21e69997a9a