Malicious PDF — malware analysis report

Static analysis result for SHA-256 329f0d067865ca87…

MALICIOUS

PDF

70.7 KB Created: 2021-06-09 21:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 018b0a89a8e55ee81aa2228f40ddad2a SHA-1: ca1d1895378d84d8c095f42154cb9092bc41d241 SHA-256: 329f0d067865ca8770e3f70d25ec289f23c49781da0323b825b17bdc4d295e73
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. One prominent URL, https://ketchas.ru/pbw?utm_term=jurassic+world+the+game+mod+apk, appears to be a lure for potentially unwanted software. No scripts were extracted, but the PDF structure itself facilitates the redirection to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://ketchas.ru/pbw?utm_term=jurassic+world+the+game+mod+apk PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451755/normal_5fc791551c29c.pdfIn PDF document text
    • https://xizadaxegux.weebly.com/uploads/1/3/4/5/134512129/mezajegilafozom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465144/normal_6029d99dc4615.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403406/normal_604fc66876b76.pdfIn PDF document text
    • https://zipesonavizi.weebly.com/uploads/1/3/6/0/136052153/levisokejabafikap.pdfIn PDF document text
    • https://jutemutugitut.weebly.com/uploads/1/3/4/6/134617260/a4fb582f13e7.pdfIn PDF document text
    • https://bujegeti.weebly.com/uploads/1/3/4/3/134355457/dizelo-susewuvikidi-mapofadidusefo-paxobenow.pdfIn PDF document text
    • https://tedamitaza.weebly.com/uploads/1/3/0/7/130740371/4278576.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456140/normal_6039cdb12af69.pdfIn PDF document text
    • https://jajesawi.weebly.com/uploads/1/3/0/8/130813829/1424193.pdfIn PDF document text
    • https://suranetu.weebly.com/uploads/1/3/4/4/134458043/lepipegajikik.pdfIn PDF document text
    • https://sifoginugiji.weebly.com/uploads/1/3/4/5/134588619/mozorezebodiwomoro.pdfIn PDF document text
    • https://tesowikosol.weebly.com/uploads/1/3/4/4/134443777/bevitisim.pdfIn PDF document text
    • https://fonevufaj.weebly.com/uploads/1/3/4/4/134444269/2502202.pdfIn PDF document text
    • https://rejowuboxobe.weebly.com/uploads/1/3/2/6/132680789/91bf66322.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_6068c65cd8704.pdfIn PDF document text
    • https://fewewoxeluvatu.weebly.com/uploads/1/3/4/3/134338934/d873c75b5.pdfIn PDF document text
    • https://xeruwuxopexok.weebly.com/uploads/1/3/4/4/134467304/5361657.pdfIn PDF document text
    • https://sidagavaru.weebly.com/uploads/1/3/2/8/132814791/4613561.pdfIn PDF document text
    • https://sekilulijafos.weebly.com/uploads/1/3/1/4/131438177/8e139390.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/fd3baec3-d0ea-480f-a79f-3b902adb0f39/445443729.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04220782-2f5f-4d51-931b-df449596525f/microsoft_project_2013_tutorial_free.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_off0000d61b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61B 5632 bytes
SHA-256: f9ce7ce868c887b93b7196119a22206105594a9a4878105172c92c1dc2eba486
font_01_sfnt_off0000e925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE925 10808 bytes
SHA-256: fe84d89faa6492aa7c29d448fb4bac031b35f593be6e3593c625eccafd992d07