Malicious PDF — malware analysis report

Static analysis result for SHA-256 b69cb81cf4895e5e…

MALICIOUS

PDF

74.1 KB Created: 2021-02-23 01:43:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c2c83d60e5beb05b4a7cdc1841f5c04b SHA-1: 837201b942c6738a130c55c8386b1760765ce0c1 SHA-256: b69cb81cf4895e5eb380e96542eff04af91099376f942583d2c50e6615c1e127
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/123?utm_term=hunger+games+mockingjay+part+2+end+credits+song PDF link annotation
    • http://cafe-cok.ru/daily_use_english_vocabulary_with_meaning_in_hindisgfs0.pdfIn PDF document text
    • http://construt.site/jaspersoft_report_java_examplerbwqn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451971/normal_5fdf796cb856e.pdfIn PDF document text
    • http://edaruzal.xyz/gasonofiwf7wm7.pdfIn PDF document text
    • http://douchehq.xyz/28148085916xjanx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481064/normal_5fdd308fad471.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409110/normal_601604855daa4.pdfIn PDF document text
    • https://cdn.sqhk.co/gokovolasula/hahcHgg/wiranezoxesekaw.pdfIn PDF document text
    • https://sunutefe.weebly.com/uploads/1/3/5/3/135350425/8952113.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387050/normal_5ff30f988e3ad.pdfIn PDF document text
    • https://jerolukemotib.weebly.com/uploads/1/3/0/8/130874115/3896c4.pdfIn PDF document text
    • https://cdn.sqhk.co/zotiperugi/fgcfdJA/micro_usb_pinout_colors.pdfIn PDF document text
    • http://giocodigital.fun/mosupadudotpidad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lixanixuzuki.rf.gd/maharashtra_bed_cet_2019_application_form.pdfIn PDF document text
    • http://dazofakokiwis.epizy.com/1471307738.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_off0000dfdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFDB 5696 bytes
SHA-256: ee9997a6725b449b6e76a424b209b75a16e8ecae4f9dabf0327d18cad63b0f57
font_01_sfnt_off0000f340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF340 11256 bytes
SHA-256: acf6c187d7b35df29c4eba773759797e68fa716f3c86548f1e0c942152f4caba