Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b06d91b9011b98…

MALICIOUS

PDF

70.8 KB Created: 2021-02-24 17:50:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 12acecd37d517def63689a57ad852b33 SHA-1: d74ac35f3dd0383e1effd208ae15f0086050cf44 SHA-256: 07b06d91b9011b981bff8c53415e876299c4d44214f6076bc086be663264cdfe
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/strik?utm_term=netgear+wnr3500+router+setup PDF link annotation
    • https://giliwafe.weebly.com/uploads/1/3/4/0/134016831/natuzo.pdfIn PDF document text
    • https://nugubigu.weebly.com/uploads/1/3/5/3/135323865/4fae91.pdfIn PDF document text
    • https://cdn.sqhk.co/vowogada/idjaNwW/tigo_py_roaming_internacional.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/3kw61mQ/wallpaper_for_pc_gaming_4k.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/solilonisodozomijon.pdfIn PDF document text
    • http://canonsburglake.com/kidoxaxesaperanutuxakiy95jy.pdfIn PDF document text
    • https://pusiruse.weebly.com/uploads/1/3/4/7/134717846/modorawigejuboxepef.pdfIn PDF document text
    • https://cdn.sqhk.co/gujowaxexag/ajiaihm/zomerikepikodavewizogefaf.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/zadularesitefojejepok.pdfIn PDF document text
    • http://wedipum.mygamesonline.org/how_long_does_navy_training_last_in_nigeria.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/f4PAhfp/wanigewugajoxuse.pdfIn PDF document text
    • https://cdn.sqhk.co/noruwotil/aVQXjew/dozimajapedefutake.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bivojeda.atwebpages.com/73906438414.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/47355662915.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/android_native_binder_callback.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_off0000d8b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B0 5444 bytes
SHA-256: 25ba802bd5b23921ee02fb1df57d31272a9c2ddb9b3a93335fa62769b545d1cc
font_01_sfnt_off0000eb63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB63 10332 bytes
SHA-256: 8ba83cb4ae75a0865eb914fddb6a49330ee10205a780cf99e6409194214fa0a0