Malicious PDF — malware analysis report

Static analysis result for SHA-256 8da589a7f9d269e3…

MALICIOUS

PDF

72.0 KB Created: 2021-01-21 23:30:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 26c743904aa65c662f6df619db47b110 SHA-1: 5e549195a1d0430fc71cc0a37a4753d469485ddd SHA-256: 8da589a7f9d269e3cb9cc5dc5dddc6a54d3cb9c997247edf96d808133e17fc49
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://jottigo.ru/wb?keyword=mini%20golf%20magic%20castle PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402519/normal_6003ec2778244.pdfIn PDF document text
    • https://site-1177098.mozfiles.com/files/1177098/72494612645.pdfIn PDF document text
    • https://cdn.sqhk.co/kasuwajavi/qierhc8/hyperkin_vr_lens_protector.pdfIn PDF document text
    • https://site-1175762.mozfiles.com/files/1175762/dam_dum_film_songs.pdfIn PDF document text
    • https://site-1172801.mozfiles.com/files/1172801/cool_gaming_wallpapers_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453142/normal_5fcedbf07b181.pdfIn PDF document text
    • https://cdn.sqhk.co/supopareso/ijjjhib/house_designer_fix_flip_mod_apk_0._987.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485163/normal_5fe6a0a63e24a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424361/normal_5ff1441c19f23.pdfIn PDF document text
    • https://cdn.sqhk.co/xezojutatow/fhjgihU/my_talking_kitty_cat_series.pdfIn PDF document text
    • https://site-1176587.mozfiles.com/files/1176587/praise_and_worship_songs_lyrics_only.pdfIn PDF document text
    • https://site-1167978.mozfiles.com/files/1167978/70532711676.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/gofiguj/nenezu.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/99981508776.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/kabuwedefamagunupadur.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_off0000dcc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC6 5108 bytes
SHA-256: 76ceb4dfb4ba3a0d09b54f775be20cbc7fb45df82469460c540b647031a5c1d4
font_01_sfnt_off0000ee2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2D 10940 bytes
SHA-256: cdaaa7af08103ba87f4c580c0e98db95fdab062a0d47d7192fd957b4132795fe