Malicious PDF — malware analysis report

Static analysis result for SHA-256 690d5409a649b0f9…

MALICIOUS

PDF

83.1 KB Created: 2021-03-11 22:41:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6c88c80cad0107db8f52cbcefeb46b97 SHA-1: 22e2ea25473c02e92f0c2f2e4aebdd2185634840 SHA-256: 690d5409a649b0f9da28f6643fd73ba4948601477bc369168031e345b3bcf729
186 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many pointing to disposable domains and Weebly-hosted files, indicating a link farm or SEO manipulation tactic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and numerous external URLs are indicative of a malicious document designed to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://jacksth.ru/wix?keyword=fdr+memorial+fun+facts PDF link annotation
    • https://malitizume.weebly.com/uploads/1/3/4/0/134097131/7742603.pdfIn PDF document text
    • https://pufukowog.weebly.com/uploads/1/3/4/5/134583281/kotose_jilelitezeputel_zetakosukepig_doradiz.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/63204059828.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448549/normal_5fed960edcf7b.pdfIn PDF document text
    • https://dovenegipejapu.weebly.com/uploads/1/3/0/7/130740438/kawubo-figusonoxiluf-kukusuditojof.pdfIn PDF document text
    • http://delunabiwefepef.22web.org/69675937162.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425230/normal_604800e1207e5.pdfIn PDF document text
    • https://leditolovon.weebly.com/uploads/1/3/2/6/132682688/4f0c07a5c01263.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402951/normal_5fe2dd4a3db56.pdfIn PDF document text
    • https://xomilazarega.weebly.com/uploads/1/3/4/5/134511507/9592766.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404524/normal_602402e140764.pdfIn PDF document text
    • http://nigoviwan.22web.org/tutilonemudakokesono.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393183/normal_5ff82f8f5c4da.pdfIn PDF document text
    • https://wugepazi.weebly.com/uploads/1/3/4/3/134348030/fumiputolimu.pdfIn PDF document text
    • https://mafupalitofix.weebly.com/uploads/1/3/4/0/134042392/ravakukisexubupeg.pdfIn PDF document text
    • https://diziwupufetut.weebly.com/uploads/1/3/4/4/134477772/859296.pdfIn PDF document text
    • https://s3.amazonaws.com/satudifin/photo_animator_app_for_android.pdfIn PDF document text
    • https://bigufoxorifef.weebly.com/uploads/1/3/1/8/131871864/danexelusok-rajagijuta-retidileraxaz-savuzu.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/pictures_of_matrix_organizational_structure.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/737a6e71-80de-4d8d-839c-af77c2435656/how_to_workout_to_build_strength.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0520c73-1bc3-4308-844e-6332c5bcca64/the_house_of_the_spirits_chapter_4_summary.pdfIn PDF document text
    • http://jovifididapop.epizy.com/gadus_s3_v220c_2_data_sheet.pdfIn PDF document text
    • http://bisowukaka.rf.gd/marshall_valvestate_2000_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a58ec0f8-6636-4444-96e7-5b9098ff0e9f/7328862589.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b60c0cf-dcd3-4c6d-b29e-8a0565f98487/62603323394.pdfIn PDF document text
    • http://bifutebapeji.epizy.com/mini_cooper_brake_repair_near_me.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_off000109c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109C3 5124 bytes
SHA-256: d5fb6c25422d12ebf11e70f21eaf2254f836760ae7932b9a43697e8783110556
font_01_sfnt_off00011b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B14 10488 bytes
SHA-256: dcddef0314d82082ed696bb0514b42a214e1540ca3a1e6b889cf8fad45d298a9