Malicious PDF — malware analysis report

Static analysis result for SHA-256 12534a07276dda0f…

MALICIOUS

PDF

72.1 KB Created: 2021-03-03 07:20:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: afdf2a672986ab5650d643426c2412cf SHA-1: fa9c83289363c0a949d244b53415dc539b77c969 SHA-256: 12534a07276dda0f1a4a3e6d9edf1e9b6417be69ddeeed9a7c8031b5e27e0c2c
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://resalured.ru/wix?keyword=unlock+at+t+lg+g3 PDF link annotation
    • https://nanupiwe.weebly.com/uploads/1/3/1/6/131606486/tafosamiza.pdfIn PDF document text
    • https://cdn.sqhk.co/xopuxuvop/hM4RUE6/microsoft_office_365_sharepoint_online_certification.pdfIn PDF document text
    • https://lirefabagobaxi.weebly.com/uploads/1/3/4/0/134012393/5972792.pdfIn PDF document text
    • https://zikotidule.weebly.com/uploads/1/3/4/6/134604350/1bc985.pdfIn PDF document text
    • https://vufosaxirit.weebly.com/uploads/1/3/4/0/134018891/3694110.pdfIn PDF document text
    • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/95f080f4be5937.pdfIn PDF document text
    • https://cdn.sqhk.co/sodelaranu/bigQujc/airplane_model_kits_that_fly.pdfIn PDF document text
    • https://pakurematumomu.weebly.com/uploads/1/3/4/7/134764434/madejivepilad-wawutaj-nudusos-vutajuvug.pdfIn PDF document text
    • https://cdn.sqhk.co/jumifokujuje/0heLieI/rivakowiruzosivi.pdfIn PDF document text
    • https://topifovav.weebly.com/uploads/1/3/4/5/134595147/3353569.pdfIn PDF document text
    • https://pitajuzijos.weebly.com/uploads/1/3/4/8/134885257/texexumizax.pdfIn PDF document text
    • https://nimimetifav.weebly.com/uploads/1/3/2/8/132814674/2d0fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390661/normal_60189f7ec7a26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465142/normal_6018ad8ac5898.pdfIn PDF document text
    • https://refapezi.weebly.com/uploads/1/3/4/9/134904673/0ac9fa5f65486d3.pdfIn PDF document text
    • http://onlyforyou.space/cognitive_psychology_ulric_neissers1q26.pdfIn PDF document text
    • https://refapezi.weebly.com/uploads/1/3/4/9/134904673/1050801.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB97 4912 bytes
SHA-256: be45e02c8db99789d23a6a3edcbaa362ae4da1207ab8aac11559b91ce11e4abb
font_01_sfnt_off0000ec78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC78 11844 bytes
SHA-256: 4fb69eabe712900a73d0d0c5cb1df4bbd1710cf339994f67b1dc0b3b00c6b1db

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