Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f0e923ad3151f5…

MALICIOUS

PDF

70.6 KB Created: 2021-02-15 03:21:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5954483899f4ece9518879df5289f07a SHA-1: 04c37dff32c55b4586bfd085a916c6af8e56f6a4 SHA-256: e6f0e923ad3151f5f641f6fa3d0ab520219a4688958b6028a4e5972f6eeccf48
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=vce%20engine%20crack In PDF document text
    • http://goldenframecollision.com/wood_bread_slicer_guide0mef4.pdfIn PDF document text
    • https://momuxubodi.weebly.com/uploads/1/3/1/3/131379397/1951959.pdfIn PDF document text
    • https://vijibasotaxeja.weebly.com/uploads/1/3/5/9/135990507/905681.pdfIn PDF document text
    • https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/a457fda.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxarulenogu/hxhejfb/download_game_my_home_design_modern_city.pdfIn PDF document text
    • http://persequenteamsohbet.com/appium_android_example_java4frmk.pdfIn PDF document text
    • https://cdn.sqhk.co/xusawikorut/lKDvifX/rev_heads_rally_apk_mod.pdfIn PDF document text
    • http://mushygushysayings.com/informe_ad_hoc_en_inglesybjb5.pdfIn PDF document text
    • https://cdn.sqhk.co/gupukutolet/jMidnhb/chatham_emergency_services_bill.pdfIn PDF document text
    • http://scarcebook.com/rope_cutting_knifegmpn4.pdfIn PDF document text
    • http://khanapoorti.com/vulijemudabidifixi1twm.pdfIn PDF document text
    • https://wabirigiraziw.weebly.com/uploads/1/3/6/0/136017191/jatuparat_tukazi_jawivu_wabak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5ff2835ec4b96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501046/normal_5fd6625341ede.pdfIn PDF document text
    • http://zifepebatidiwig.22web.org/dexosu.pdfIn PDF document text
    • http://kushtanash.ru/2520241884gsh6w.pdfIn PDF document text
    • http://adv-workshop.site/dietary_guidelines_for_diabetes_management5wsa6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pepezuvizomu.rf.gd/lelawera.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_off0000da99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA99 4784 bytes
SHA-256: f0c94a9fa2547c2f02b8538a2b2bcabd819bfc3dddfc8f4fcf7aa91cbc980020
font_01_sfnt_off0000eaff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAFF 10176 bytes
SHA-256: cd1252912cd5eb5fb66e7a7be9eecb94b9589c6909e9dbed22bfc5f87aed5322