Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f0190f881e25213…

MALICIOUS

PDF

81.2 KB Created: 2021-02-09 00:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 791f75157385bb1cf14e049cc14a26fd SHA-1: a3867d359715406e80c281486e27b035ba2989a6 SHA-256: 5f0190f881e25213807d71b269b4a9ebb3315da9739a4d3091f6bbdfe3f43619
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://maypoin.ru/wb?keyword=bendable%20plastic%20sheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4372382/normal_600f21bb78b48.pdfIn PDF document text
    • https://cdn.sqhk.co/wajidafix/vggmshf/la_liste_des_23_equipe_de_france.pdfIn PDF document text
    • http://nunegotopexipo.iblogger.org/20342651355.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386839/normal_5fc8c4ddd962b.pdfIn PDF document text
    • https://xadupokunarufi.weebly.com/uploads/1/3/2/7/132710624/4efb719aa1.pdfIn PDF document text
    • https://pexegiwu.weebly.com/uploads/1/3/4/5/134526087/958c6322e561.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373522/normal_5fdc120a8fe23.pdfIn PDF document text
    • http://kujazudoxiro.22web.org/answer_to_the_impossible_quiz_level_34.pdfIn PDF document text
    • https://suwesinorilofev.weebly.com/uploads/1/3/4/0/134096988/622de8ab38ba90.pdfIn PDF document text
    • https://difanewoxapazu.weebly.com/uploads/1/3/5/3/135321324/814415.pdfIn PDF document text
    • http://pycnidwzxc.info/vidagifawogafezah4axk.pdfIn PDF document text
    • https://cdn.sqhk.co/xadowififux/iihdVam/download_blockchain_wallet_apk_for_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jenesigafepi.epizy.com/vivaldi_concerto_for_2_violins_sheet_music.pdfIn PDF document text
    • http://botiximura.epizy.com/bls_and_acls.pdfIn PDF document text
    • http://duwufinojitu.rf.gd/bluetooth_apk_for_pc_windows_10.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_off00010246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10246 5256 bytes
SHA-256: e732931940b3deaeeaae9f47eec47808ce427969f1eed2fc7e3b6fe334981e90
font_01_sfnt_off0001141a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1141A 10644 bytes
SHA-256: df6e07955bfa8ca34c8b6b24cd8a3e773f3dc013eceed0b3727b9a687325a38d