Malicious PDF — malware analysis report

Static analysis result for SHA-256 e33c773b5a785d9c…

MALICIOUS

PDF

71.8 KB Created: 2021-02-14 01:11:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 42cdc13d52017712da5b7fc1bda7153d SHA-1: 42c60ac7a6121112d905dbdf97d002068176fd32 SHA-256: e33c773b5a785d9c882237c6d578e86dcc2495a78fd769094f938d53fbd43d40
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=d%2526d+5e+lingering+injuries PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4485703/normal_6002f39016cce.pdfIn PDF document text
    • http://vasazuruxu.iblogger.org/81371861302.pdfIn PDF document text
    • http://kumorafeg.iblogger.org/kinnickinnic_river_fishing_guide.pdfIn PDF document text
    • http://kebilosudo.22web.org/tirapuvelilodiw.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/vheiaUD/survival_simulator_mod_apk_0._2._0_alpha.pdfIn PDF document text
    • https://cdn.sqhk.co/litalile/gcCjhnF/lamour_love_all_over_the_world_apk_mod.pdfIn PDF document text
    • http://wirodapupoz.iblogger.org/analisi_logica_esercizi_con_soluzioni.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428033/normal_5ff1760385500.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403143/normal_60016e8ac4674.pdfIn PDF document text
    • http://skameyki.club/35505065103hn8m.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/qEjafb1/lofanadas.pdfIn PDF document text
    • http://fixegemixinazoj.22web.org/lexokazumevufedusetava.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pekoguwomigurup.epizy.com/nikaduwukojozafuf.pdfIn PDF document text
    • http://botusojulepeja.rf.gd/tutanexemerelodena.pdfIn PDF document text
    • http://lixumogal.epizy.com/billi_punjabi_song.pdfIn PDF document text
    • http://wilixafex.epizy.com/android_authority_samsung_s9_giveaway.pdfIn PDF document text
    • http://safefimij.epizy.com/vs_code_not_formatting_vue.pdfIn PDF document text
    • http://budakokubogomax.rf.gd/xemixapewo.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_off0000d8b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B8 4156 bytes
SHA-256: bb1702a9e9b617346157f9ea6f36cc14559c37d4a4a2cf683ebd57dce9d2c082
font_01_sfnt_off0000e6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E7 15344 bytes
SHA-256: 8a0d0a6eba1dcca4119b2288169e9ddc5f5fb27315a70c4537247040e079a5c8