Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad48de8b7ca50ca…

MALICIOUS

PDF

75.8 KB Created: 2021-01-29 01:19:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e0312af9b0dbe50e35d5a074e80dcd61 SHA-1: 901fb3620bb14591967d87100bb815cd5ceda833 SHA-256: 6ad48de8b7ca50ca193207941ef8405427a49ddd1597c41960fc0a0a32aac4e8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wb?keyword=titan%2018v%201.%205ah%20li-%20ion%20battery PDF link annotation
    • https://cdn.sqhk.co/zujumatatub/ajijiUj/takeout_arkadelphia_restaurants.pdfIn PDF document text
    • https://biteledazuxol.weebly.com/uploads/1/3/4/3/134315761/navowuz_lorixolajo_lewimoveta_ranat.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/0gf9jjL/it_events_october_2019.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/fazutu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_5fd9c13a9ff05.pdfIn PDF document text
    • https://cdn.sqhk.co/wafasojudo/YW0NJBG/verizon_id_me_teacher.pdfIn PDF document text
    • https://lurafavef.weebly.com/uploads/1/3/0/8/130813461/getufaze_muzasasopu.pdfIn PDF document text
    • http://vitalia-transports.com/wuzeriz12uv0.pdfIn PDF document text
    • https://wiwovadale.weebly.com/uploads/1/3/5/3/135322143/4716717.pdfIn PDF document text
    • https://cdn.sqhk.co/posebozej/zgeiaib/kimiwalenonivig.pdfIn PDF document text
    • https://cdn.sqhk.co/dutaxato/yTjajjT/zafudedipoxilemifinizod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393020/normal_5ff3c866b3435.pdfIn PDF document text
    • https://lalupapetawosi.weebly.com/uploads/1/3/2/8/132816164/35ea80f9171.pdfIn PDF document text
    • http://pc-remont.website/jukiwetipawebaehgho.pdfIn PDF document text
    • http://vashe-zdorovie.xyz/zasawal767p7.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_off0000eaaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAAA 5280 bytes
SHA-256: a16b73ca95e3dec7c014e435621d98ead43d928e3d1c698e13e1d286003e643f
font_01_sfnt_off0000fcbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBF 11036 bytes
SHA-256: ef468606972552ec0db5b3df7a2bf109168fb556a8bd47e73b6f47e23169aa6b