Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4447ecd4fe87cb2…

MALICIOUS

PDF

72.1 KB Created: 2021-03-06 03:01:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 50696bc075da18d67f041c2fcb6694ee SHA-1: 66b0bdb454383fd40f19bc777712e10d0a6f4924 SHA-256: e4447ecd4fe87cb24c212f80d6eaaca1ee514fd367c6a6e3d70be788eb5d7f8d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/award?keyword=what+time+does+the+sun+go+down PDF link annotation
    • http://torchland.xyz/foseremodomj0n3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413975/normal_5fde315906ef7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427105/normal_5ff5fdf0e205d.pdfIn PDF document text
    • http://xudogiborijum.66ghz.com/sawiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366018/normal_5fe03a2fde5cc.pdfIn PDF document text
    • http://adv-workshop.site/50835062012o50so.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403672/normal_601005882e3ed.pdfIn PDF document text
    • http://temimiwug.iblogger.org/how_do_i_update_my_mcs_150_online.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/y3nTHgc/change_video_call_background_teams.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/LhhibLJ/38998335160.pdfIn PDF document text
    • https://cdn.sqhk.co/lolumebitana/haCiinL/digital_marketing_strategies_during_covid-_19.pdfIn PDF document text
    • http://tubipiguposazi.22web.org/xekivafivaxadegupunuvevit.pdfIn PDF document text
    • https://cdn.sqhk.co/gagowuname/jehhpih/furry_fandom_flag.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/jPjaDhq/download_tank_block_blast_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500200/normal_5fd638c648964.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://detasagupubat.epizy.com/zosediralarir.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/ferosadejeg.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/zubakefe.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/duwomewitoneforupo.pdfIn PDF document text
    • http://vodividubo.rf.gd/babban_yaro_hausa_film.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27ee3773-5e8b-489d-8f8a-4fa3eda45d58/wd_my_cloud_lost_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8986d0c-940e-4cbb-b499-5b6c35cce675/my_mac_wont_let_me_open_system_preferences.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EB 5216 bytes
SHA-256: c64627980ddac49a8c6769cbec6af92d12d401b4815f82e58598e4dfb372913b
font_01_sfnt_off0000d89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89A 10664 bytes
SHA-256: 52a0fe03863b375b657c024aebbfcc55b3a8759ed30a717eb659ac1bf8fbddda
font_02_sfnt_off0000fc64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC64 16060 bytes
SHA-256: fcf73efd7645a5cbf1f9ecf848d1b041b83da42f1e9169fbe2e80fd434f54b6a