Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9e64bfa57476ef1…

MALICIOUS

PDF

76.0 KB Created: 2021-02-23 15:43:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b562e3bc078386bbfc25e241b7698ce9 SHA-1: 9559a8bcef1ff3ab46f698baea81f451c01fc6ed SHA-256: d9e64bfa57476ef134d70415d634fc91aeaffd677e0e5c5c9bfa850e252b8b18
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wix?keyword=jurassic+world+evolution+hacked+apk PDF link annotation
    • http://denizan.com/jamixuwevod30mf7.pdfIn PDF document text
    • http://reform-st.ru/derisowllu4.pdfIn PDF document text
    • http://domen3.club/69527683033uy0w9.pdfIn PDF document text
    • https://cdn.sqhk.co/rerunaropiz/jhfgikg/tegafopabesesawiruxud.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/ida_pingala_sushumnaliji5.pdfIn PDF document text
    • https://dapapakutuluj.weebly.com/uploads/1/3/1/3/131384169/degavakuromu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470409/normal_5fcb47803f54b.pdfIn PDF document text
    • https://cdn.sqhk.co/vujaderaz/isaiaex/90s_skater_boy_fashion.pdfIn PDF document text
    • https://momewevegugeb.weebly.com/uploads/1/3/5/3/135326076/e012ae7c6.pdfIn PDF document text
    • https://gamuzajebi.weebly.com/uploads/1/3/4/4/134481120/givijob.pdfIn PDF document text
    • https://cdn.sqhk.co/noruwotil/UhcTGAk/arcade_games_for_sale_columbus_ohio.pdfIn PDF document text
    • https://dotuxebi.weebly.com/uploads/1/3/1/4/131454754/mujefusizolufed-rubizukifi-lubinawon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/kujemavipevudifajuzinav.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/really_funny_jokes_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/free_printable_resume_templates_for_microsoft_word.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_off0000e7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DC 5364 bytes
SHA-256: 22ce236a5b056b26bef2255d7b044a16203d3d097806f50e329a2148e5a060fe
font_01_sfnt_off0000fa28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA28 14868 bytes
SHA-256: 08147dc1ab74dee971579665522a70dff3eecc8de1f74d152381652d81f9bb8e