Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cef6d4df057b0f4…

MALICIOUS

PDF

71.8 KB Created: 2021-02-18 17:16:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5dfeaccc0155c92d9cc423e1ede79d2a SHA-1: f4f96fc76591c9d770b7d10a56e69fa6dc279799 SHA-256: 2cef6d4df057b0f44b18fcd93781c96b36efa0fdbf8b96631f7d257abf4e08d3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=easy+keto+breakfast+meal+prep PDF link annotation
    • https://ludolukek.weebly.com/uploads/1/3/4/6/134699908/towagabozogofike.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393625/normal_5ff2c3e774f40.pdfIn PDF document text
    • https://rekasefuwe.weebly.com/uploads/1/3/0/9/130969231/duwosa_kegulexiru.pdfIn PDF document text
    • http://tronreserve.online/retro_gpo_phonebftvn.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/UrSvfhc/best_photo_warp_app_android.pdfIn PDF document text
    • http://reweder.site/90865051939wn5o8.pdfIn PDF document text
    • http://winfreeiphone.xyz/90284597265otqea.pdfIn PDF document text
    • http://vsedlyatebya.xyz/nujufizudasuvevasazopmn2zi.pdfIn PDF document text
    • https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/241462.pdfIn PDF document text
    • https://dolufinome.weebly.com/uploads/1/3/5/3/135330980/bazujuxakativodor.pdfIn PDF document text
    • http://ionatr.fun/chirutha_cinema_songs_comxgm93.pdfIn PDF document text
    • http://test123test.xyz/download_apk_smooth_action_cam_slow_mo_proh4hps.pdfIn PDF document text
    • http://fredo.bike/detention_center_philadelphia_prisono86me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuzimobikuxuta.epizy.com/archeage_size_2019.pdfIn PDF document text
    • http://zilomit.epizy.com/nazogizul.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_off0000dc57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC57 5312 bytes
SHA-256: be2a080d7e076f735c1ebe49cc61693ba558335f6e720aecc57ec639a4ee949c
font_01_sfnt_off0000ee5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5A 10808 bytes
SHA-256: 6cee326eabef0bb402cb0d70f56cb36988e52072fe860918fe48f28379a72f0b