Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bff14b508c7348f…

MALICIOUS

PDF

74.8 KB Created: 2021-02-04 15:22:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 53d369cd97c01d0927a8f89aec137024 SHA-1: 0eb82c4368f02f03283618544a2c40627df9939b SHA-256: 5bff14b508c7348f30c600f976b1ea4cb298d6e47238af34d2108e41758e03d5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wb?keyword=authorisation%20certificate%20format PDF link annotation
    • http://donimiradibekel.22web.org/doorbell_transformer_uk.pdfIn PDF document text
    • http://nigasheff.xyz/funorelenre23.pdfIn PDF document text
    • http://jobware.pro/jufogox7w0sj.pdfIn PDF document text
    • https://fajizaxaro.weebly.com/uploads/1/3/1/3/131381717/2977052.pdfIn PDF document text
    • https://jopixumux.weebly.com/uploads/1/3/4/7/134734794/ledamevopu_naxebexusa_zofugonezinug_tupotame.pdfIn PDF document text
    • https://cdn.sqhk.co/fupokiwil/poieigJ/siwefimogidujo.pdfIn PDF document text
    • http://ig-about.net/23841918146d9fk1.pdfIn PDF document text
    • https://waruzakelejabu.weebly.com/uploads/1/3/4/6/134600446/68e6e8d64980b38.pdfIn PDF document text
    • http://sozefavi.22web.org/kerarezadisiwumakebedak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dunupepemogakiw.epizy.com/t_mobile_tv_app.pdfIn PDF document text
    • http://jinujatafariva.rf.gd/23978135384.pdfIn PDF document text
    • http://mujigivufutufu.rf.gd/formal_dress_for_apple_shaped_body.pdfIn PDF document text
    • http://bimivopi.epizy.com/xaloposudejatevixinogov.pdfIn PDF document text
    • http://xaramoturowuf.rf.gd/zusifimasi.pdfIn PDF document text
    • http://pusupap.rf.gd/organel_sel_dan_fungsinya.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_off0000e956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE956 5076 bytes
SHA-256: 976ee47e9c397ed10f1de68b55839cbe96dbd170d047003351be7cec521ee786
font_01_sfnt_off0000fa72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA72 10588 bytes
SHA-256: 80215a4e9460ee8d2ae7859f264d64b536ed6892dcd2fe02fcbedf1d68275258