Malicious PDF — malware analysis report

Static analysis result for SHA-256 701155f46fc1bfe7…

MALICIOUS

PDF

81.8 KB Created: 2021-03-24 12:12:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6329fa3e8c4dfbc8410a5d77642cda43 SHA-1: 10d8d59c7957c9d7148d47bc421b37c051ca73cd SHA-256: 701155f46fc1bfe748b1c799e2f74be00f85c1c89581cb3b74b6f0c2176cd10f
186 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to direct users to potentially malicious websites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a spearphishing attachment.

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://golowaki.ru/strik?utm_term=transitions+for+second+body+paragraph PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387718/normal_602f0b2c3c23b.pdfIn PDF document text
    • https://dedotomonifagax.weebly.com/uploads/1/3/1/6/131606429/5712010.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/51266035028.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471475/normal_60225459b97b1.pdfIn PDF document text
    • https://jixatazibasuv.weebly.com/uploads/1/3/4/4/134402985/e1bf0dba4512ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492272/normal_5fcb098e9af44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484815/normal_605455fbbfef5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472495/normal_6052a73b12668.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/veterans_administration_citrix_access_gateway.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450415/normal_5ff667d0015cb.pdfIn PDF document text
    • http://nuwetiveguvo.mypressonline.com/nelarodi.pdfIn PDF document text
    • http://gebikomuxe.getenjoyment.net/73905778720.pdfIn PDF document text
    • https://xafasujogi.weebly.com/uploads/1/3/4/3/134374351/nifumidinurujel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://9de673a2-3b8e-40eb-bbf5-c0ad8e71a3da.filesusr.com/ugd/bd5c68_9a5b910e10e94726ac0b21433beb3d8b.pdf?index=trueIn PDF document text
    • https://6fc76513-a17a-4053-940d-bef108f5ea85.filesusr.com/ugd/3a5ef0_8c3c6ebb2ed64316a33085738c35b252.pdf?index=trueIn PDF document text
    • https://f3dcd8e3-6656-4b47-a81e-a993d3c4f2a1.filesusr.com/ugd/aa9ef2_4dd7518f31234ecea7104ab386529716.pdf?index=trueIn PDF document text
    • https://ca39a19f-16f9-469f-ab0b-65ec0463b8d0.filesusr.com/ugd/cc9b97_4c17d8d2fe61463eaf6c26b460ec2cdd.pdf?index=trueIn PDF document text
    • http://revudipepofaten.myartsonline.com/can_a_paper_shredder_overheat.pdfIn PDF document text
    • http://xawiwevivuzox.onlinewebshop.net/diriweju.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f488.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF488 5364 bytes
SHA-256: f2841e5d8347a13120cd87a54ed84e9afdbf41f96e159bff8110197b892ca39a
font_01_sfnt_off000106b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B1 10804 bytes
SHA-256: 5121e1087edace54cef3adc6529d03c80c0a7786f9fb5fd72bf312a4fadfb51a
font_02_sfnt_off00012b71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B71 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34