Malicious PDF — malware analysis report

Static analysis result for SHA-256 653de1a4bf4a55de…

MALICIOUS

PDF

69.4 KB Created: 2021-05-28 00:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 80e606248ecb8ea9d9f686f9a34880f7 SHA-1: 5e90b83e3d05d15a073501521829c26d7f61f388 SHA-256: 653de1a4bf4a55ded34e335b2effa9075e24c2ca78bb31f6581f3e0ef90b751f
186 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many pointing to disposable hosting services, indicating a link farm designed for SEO manipulation or to distribute further malicious content. While no scripts were explicitly extracted, the presence of numerous external links suggests an attempt to redirect the user to malicious sites.

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://bevabuje.weebly.com/uploads/1/3/4/8/134897483/moxizefubali-taluwaxoj-sapekufoxa.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4461767/normal_603b6afa07e8b.pdfIn PDF document text
    • https://gafujewat.weebly.com/uploads/1/3/4/6/134687801/gipegedarajel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480155/normal_606346348db24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447631/normal_5fcb68d639c11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490266/normal_5ff595e3c4283.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_6013346110684.pdfIn PDF document text
    • https://jilorewiruladof.weebly.com/uploads/1/3/4/5/134595325/jasape_xototulolive.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386091/normal_60329aed49215.pdfIn PDF document text
    • https://jitosagar.weebly.com/uploads/1/3/4/3/134318128/fokarinuvagotarul.pdfIn PDF document text
    • https://kivobuduzuv.weebly.com/uploads/1/3/0/7/130739084/nidepofagip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408879/normal_5ff9ac505c4e0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481403/normal_5fefe04b88359.pdfIn PDF document text
    • https://telutifezidawu.weebly.com/uploads/1/3/4/6/134624569/midevupalevi_xuzeliwatesigew.pdfIn PDF document text
    • https://kulaxebide.weebly.com/uploads/1/3/2/3/132302774/174b3b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/o_fyKxYoRT8/wb?keyword=minn%20kota%20powerdrive%20v2%2080%20i-pilot%20linkPDF link annotation
    • https://uploads.strikinglycdn.com/files/de5c9be3-446f-4964-abb0-80124a471221/hp_z420_motherboard_18_pin_layout.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89015a21-4980-4aa4-8337-90909f47a373/55108145905.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bce99f6f-4a8c-4197-a0eb-01c0e7bd62d3/95059498911.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e474f09-5f20-46df-95e3-1ddfd89a9fac/15776597549.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_off0000d2d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D2 5496 bytes
SHA-256: cbbc5a6ea1c34ba423b5cab3a9be37759af306bb55b0979d5e07a9dd0f5a806d
font_01_sfnt_off0000e5be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BE 10032 bytes
SHA-256: f67ad8234b6a9b3e1c330ef56b9cfec598a62a1bfe01fcca356d3b214374dcdb