Malicious PDF — malware analysis report

Static analysis result for SHA-256 daca5dfad8f60ddd…

MALICIOUS

PDF

72.8 KB Created: 2021-03-03 01:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cfce95c9d6ad9074f19001756144042e SHA-1: eda13e26c5ed191a52a638863b63adfb2f3faaf0 SHA-256: daca5dfad8f60ddd2826c4c8f3c4dcb59855b067756eddc1f56581c7f1a72264
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://bologen.ru/award?keyword=how+to+update+lg+smart+tv+software+via+usb PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490251/normal_60183e3b2b286.pdfIn PDF document text
    • https://fabexitib.weebly.com/uploads/1/3/4/1/134109013/5366513.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/three_billy_goats_gruff_story_pictures.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388835/normal_5fd6ab101b271.pdfIn PDF document text
    • https://vewudati.weebly.com/uploads/1/3/0/8/130873955/nidikabo.pdfIn PDF document text
    • https://bolowarokarov.weebly.com/uploads/1/3/4/3/134349384/kewebenazoxi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489983/normal_5fef9bcfe4b6f.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/jiEjgy8/jefilitesukogipibevuge.pdfIn PDF document text
    • https://cdn.sqhk.co/jilowepe/Ai6jic9/website_crossword_creator.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/3704703838.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427085/normal_6039d86da0357.pdfIn PDF document text
    • https://topukutenikoxi.weebly.com/uploads/1/3/4/6/134668920/buxefezu.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/65640095342.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405946/normal_6002774572516.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493579/normal_60074974c1e2d.pdfIn PDF document text
    • http://pixidilivutep.medianewsonline.com/83764247056.pdfIn PDF document text
    • https://cdn.sqhk.co/wofosavafiju/45Gnmjj/repost_story_for_instagram_apk_pro.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF35 5616 bytes
SHA-256: 5501340618f7d002f810bd8c1304e8a22090e0e5b39836565526af3ab8d31d36
font_01_sfnt_off0000f24e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24E 10552 bytes
SHA-256: 496879db4c8cb1108f151c4f750469b6cbe4a13d622e4bfde69a576848e036d1