Malicious PDF — malware analysis report

Static analysis result for SHA-256 814b7ec7152766a8…

MALICIOUS

PDF

97.8 KB Created: 2021-03-15 22:31:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 04b97dcfe5202bcf178e087706bbccd4 SHA-1: e9019464aa01ef862522e6cdbbb98ef10c81548a SHA-256: 814b7ec7152766a816d33d2739908f2783f65b1cd852c00c96cd4e84d8fa3d70
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file exhibits characteristics of a link farm, containing numerous external URLs pointing to various domains, some of which are associated with disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or SEO spam. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection to these malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=getting+blessing+from+sage+pokemon+heartgold PDF link annotation
    • https://cdn.sqhk.co/pivokazi/s7ihehb/9510097191.pdfIn PDF document text
    • http://obuv-kozha.ru/62105241405x9erf.pdfIn PDF document text
    • http://mynasert.online/86331449488e6k8m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476429/normal_6027884264d9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377115/normal_601877469e32e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389104/normal_603171abe955b.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/SticXjd/missing_411_books_used.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480588/normal_604d41362cf9b.pdfIn PDF document text
    • https://cdn.sqhk.co/zirixegip/gOjjmBE/twist_hit_apk_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4d3f562-936e-40fe-97ff-76865778e510/does_gimp_work_on_ipad_pro.pdfIn PDF document text
    • https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_d1ce4760174645dd8c6d9ae27a87ba33.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd60d023-5b4d-45bf-aca8-09a6c06ebf40/46737543137.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d27689eb-5a96-4f49-ad1d-b2bb6e8b4f2f/50513397564.pdfIn PDF document text
    • https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_c54ebb30c2ee468b848afaffce6229de.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7b59430-7d14-439d-8aea-4b7cf17fd3b5/pasuworukoke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20d62c84-7109-490b-b81e-3bc0c76e8204/ice_cream_makers_recommended.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0d7a31a-68d7-4c50-a1d2-69d7bbeee86d/how_to_adjust_hoyt_draw_weight.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0177594-bfd0-4ba0-b56a-ed882a35f41d/96833887088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bda1ece8-6a5f-426f-9fa7-010819f4a24d/my_dungeon_shook.pdfIn PDF document text
    • https://aa5f33e9-793b-4807-a257-9eac84d314d0.filesusr.com/ugd/aa57b2_fdec23f4575841adbddb51065d4305c8.pdf?index=trueIn PDF document text
    • https://ee809a51-a58d-41df-a269-13688c4e1c69.filesusr.com/ugd/5f587b_6f1784cc75eb4cf5b390b94a945c703e.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_off00011563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11563 12172 bytes
SHA-256: e9d643e0f813176a35785f48355bea0d24d2940d8c7d33fd286b1876938384f7
font_01_sfnt_off00013d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D3C 5692 bytes
SHA-256: ba6e5eae067115fca50da21ddcce20199b956c93fdd00433b4ddf295ae41298b
font_02_sfnt_off0001506c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1506C 11428 bytes
SHA-256: a8916a92bc7681046fe20b3a0fd611619423981c35cb0c12d62642d018b3834a