Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8a769018c65166d…

MALICIOUS

PDF

70.6 KB Created: 2021-01-05 05:40:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: b39d274bc75e54aaa3dccb30856d8153 SHA-1: bee6c9a4177a98930a359536a1ed77c2022297f9 SHA-256: d8a769018c65166d1719e57373d4187c2ec84ec8877d037a4d7f0994a821982c
192 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ggtraff.ru/aws?utm_term=best+psx+emulator+for+android+free In PDF document text
    • https://jerubezefago.weebly.com/uploads/1/3/0/8/130874212/firite-puwojopugi-kewexagodidef.pdfIn PDF document text
    • https://gokipeko.weebly.com/uploads/1/3/4/3/134351508/mowalebasefozub-vugosepe-fipozu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456135/normal_5faaad67ed235.pdfIn PDF document text
    • https://totijavefukaja.weebly.com/uploads/1/3/4/7/134705726/somid_bodijijulaxog.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/95847.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/jcggpjh/mallard_ducks_for_sale_michigan.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/2de010d282b813.pdfIn PDF document text
    • https://cdn.sqhk.co/xinulezebi/gpidjfE/antihero_definition_synonym.pdfIn PDF document text
    • https://zabamaki.weebly.com/uploads/1/3/4/8/134849969/3476450.pdfIn PDF document text
    • https://tivurenufetoza.weebly.com/uploads/1/3/4/2/134235987/7d16db8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xajowu/65716413817.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/lasofofoxekevoginimif.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/48322224800.pdfIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/44759207241.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/cg_whatsapp_status_video_free.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_off0000d79f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79F 5304 bytes
SHA-256: e18d49be7430bea08231c4e8bd5939a9a2c1f0ec7589ada01e78e823cf6a44ed
font_01_sfnt_off0000e99a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE99A 10504 bytes
SHA-256: d6c872b9c2a8d43c0176024e82dcce32af3788ebf2faf759d334ae91cbb6b406

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