Malicious PDF — malware analysis report

Static analysis result for SHA-256 895e130f0e9d2357…

MALICIOUS

PDF

57.1 KB Created: 2020-09-17 11:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2e8f5da4f4daf63153e93e6f6acfdf2a SHA-1: 32b59bc97d33604c0e8d183438eb808d3d608964 SHA-256: 895e130f0e9d23571c2c1530a47d30b3e84dc8a7aef32e92be8ef28cfd0f82c1
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links, many of which point to disposable hosting and redirector infrastructure. One of the primary links, 'https://ttraff.club/wix?keyword=touhou+16+moriya+shrine', is flagged as malicious. The document's structure and the nature of the links suggest it is designed to lead users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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://ttraff.club/wix?keyword=touhou+16+moriya+shrine In PDF document text
    • http://wisexik.spartanhoops.org/uploads/1/3/0/9/130969679/nopema_fepese_fotogezirerazo.pdfIn PDF document text
    • http://files.tbcvaldese.org/uploads/1/3/1/6/131606162/zojadexolukukat_zokeniwenojar.pdfIn PDF document text
    • http://files.miamiccr.com/uploads/1/3/1/3/131383434/xonamajosuxo.pdfIn PDF document text
    • http://fijitij.paulieanderson.com/uploads/1/3/1/3/131379598/tireliwiruvisas-nutob-gazabuzidir-zubunopob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e1dd5e70-3f89-48af-9f43-bbe286897d0a.filesusr.com/ugd/26f730_633b5ce604a44a018500e1a554800d51.pdf?index=trueIn PDF document text
    • https://d3a9167d-84ca-454c-9269-725282c7df85.filesusr.com/ugd/87a178_88e3e15f45ae4dc78f544b98e18d0de9.pdf?index=trueIn PDF document text
    • https://cc6680da-3623-4827-8c61-f01270d8ff3e.filesusr.com/ugd/0b46e6_42345bdea1cc4077bd12f697819ea574.pdf?index=trueIn PDF document text
    • https://bd91bbfb-bef7-4dd6-b0b5-807c612a3dc2.filesusr.com/ugd/1d64af_5d900307c9d84fcfac21654ada1be6e4.pdf?index=trueIn PDF document text
    • https://bdf27e1c-1102-4c48-b154-c7d77fe61e0d.filesusr.com/ugd/eeb7bd_37480c79c3ae47ac952d4e36124ba59c.pdf?index=trueIn PDF document text
    • https://19fa7796-6bf9-482c-b6e4-c8ef065ca494.filesusr.com/ugd/3402b1_c299aed409e44d198ee77e3334ef1c74.pdf?index=trueIn PDF document text
    • https://4f552354-ce27-4e12-b859-3e69ad876fbd.filesusr.com/ugd/b85eb0_e1e35ccc7a7d4646865c548ef1dd57d7.pdf?index=trueIn PDF document text
    • https://b9e03b9d-75a0-47df-b331-21c2ef7fc818.filesusr.com/ugd/b73feb_5f50b0d9c19446ea9e57e45dd02071a7.pdf?index=trueIn PDF document text
    • https://c82f60e2-82c9-4be8-8a8f-1794a04d2069.filesusr.com/ugd/4fb05f_73a3ce21760144ae8cffcea9bf7e1fba.pdf?index=trueIn PDF document text
    • https://3c8b1b99-aff3-48fc-a4be-9b72f8337d3e.filesusr.com/ugd/cc3ca9_f2890eb94f234f9cb56d5b3346937c84.pdf?index=trueIn PDF document text
    • https://755034b4-f7d8-4830-b1f6-5c55b21837f9.filesusr.com/ugd/bb10c5_4afdecb523c7416ab0e08a1a0ae534f7.pdf?index=trueIn PDF document text
    • https://917bb01f-1133-4213-8fc5-a7c36f4f7a4b.filesusr.com/ugd/a4e402_01c6d4d7b9c24282b44e4a6355e221bd.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000092d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D0 4004 bytes
SHA-256: 0194ea558d3ff83b023a5c77a42bf9e4af78f9597aeb640a5d0a81034c213796
font_01_sfnt_off0000a0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0E8 5152 bytes
SHA-256: 925d830860957a34b4c1b2679cd54edb22d0819d9f5e9c4385ea62535a6e0593
font_02_sfnt_off0000b24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB24A 10396 bytes
SHA-256: 9e8d3599509d24c3ce01099287d070fee980fe39f6e4f85278801c595cc2f8f0