Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdc398aa0f6e64d…

MALICIOUS

PDF

71.8 KB Created: 2021-01-24 03:23:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 0ff178938d8a62be7496e26c37b7a1dd SHA-1: 6ddf318a63a5e7f4a70c74e27e080639f36a62d7 SHA-256: dbdc398aa0f6e64d96c5f43c4305789f09bc5e841d74a894d54cf458540f9627
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://yafferge.ru/aws?utm_term=fixed+asset+register+template+excel In PDF document text
    • https://cdn.sqhk.co/vixukose/kibhdhf/4705100269.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/iao2jdr/kixikafo.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/BJjbKrb/anime_music_offline_naruto.pdfIn PDF document text
    • https://cdn.sqhk.co/nilamemiw/ks0Okia/la_novela_picaresca.pdfIn PDF document text
    • https://cdn.sqhk.co/mujexoxa/c2jiiaV/kibozukigutolu.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/HTFgeLO/oneplus_6t_theme_for_miui_10_download.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/jthdbK4/juventus_games_on_tv_usa.pdfIn PDF document text
    • http://sojekobab.22web.org/marketing_plan_outline_template_word.pdfIn PDF document text
    • https://cdn.sqhk.co/vijukifezu/OcgeQOs/wish_memes_funny.pdfIn PDF document text
    • https://cdn.sqhk.co/sabiwizi/CKiWiho/the_elder_scrolls_legends_switch.pdfIn PDF document text
    • https://cdn.sqhk.co/fiporalisu/GNiiggU/opening_to_chicken_run_2000_uk_dvd.pdfIn PDF document text
    • http://ximikilanad.22web.org/caller_id_hide_app_for_android.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nifopufu.epizy.com/65739796476.pdfIn PDF document text
    • http://fejobizife.epizy.com/new_animated_movies_2018.pdfIn PDF document text
    • http://tosopipates.epizy.com/pneumonia_bacteriana_em_caes.pdfIn PDF document text
    • http://lojetewope.epizy.com/zezaduruliwevo.pdfIn PDF document text
    • http://wimoduwogukuruk.rf.gd/altos_adventure_apk.pdfIn PDF document text
    • http://zuxamivim.epizy.com/xavefazuworepakarubodo.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_off0000dba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA9 5416 bytes
SHA-256: 205ce84154032d87c3c9d47e12ace8b849d8ddf2a9c3519b4688f0be00a47d83
font_01_sfnt_off0000ee06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE06 10564 bytes
SHA-256: 93b12de58d096323a0c95beb6c94e491eb228fe285d79bb2a5d2b58abcefda55

Open this report in the interactive analyzer, or submit your own file for analysis.