Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ac07852e6ce25c…

MALICIOUS

PDF

75.0 KB Created: 2022-04-07 14:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 6fa03df1aa9ad95ed4f5bf0e32b56d32 SHA-1: 5152b8adfc3fb7a34441b88114f49b5fb8fcee3c SHA-256: 18ac07852e6ce25ca137556caf67dea4dd1aec6f2bdd4e11cf2418f6fc23f3ca
186 Risk Score

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://wirut.co.za/YmrXLWy8?keyword=mechanical%20engineer%20salary%20in%20us PDF link annotation
    • https://tumenunomowet.weebly.com/uploads/1/3/0/7/130775025/11b28ada.pdfIn PDF document text
    • https://wavopotajulaja.weebly.com/uploads/1/3/4/6/134631105/jobanumu.pdfIn PDF document text
    • https://sagiwotagemo.weebly.com/uploads/1/3/1/8/131871993/8785663.pdfIn PDF document text
    • https://xakekulipekez.weebly.com/uploads/1/3/4/3/134350488/8562898.pdfIn PDF document text
    • https://keveronusixenub.weebly.com/uploads/1/3/4/8/134852782/5dcf23139a305.pdfIn PDF document text
    • https://kelezejiratup.weebly.com/uploads/1/4/1/2/141253207/8703122.pdfIn PDF document text
    • https://senabexe.weebly.com/uploads/1/3/4/2/134265557/fufogewegelorixove.pdfIn PDF document text
    • https://nogapixefakul.weebly.com/uploads/1/3/4/5/134590999/firuv-puvazegepozax-xoketamunudafa.pdfIn PDF document text
    • http://xn--djr00fsyfv0o5qgy9u.com/filespath/files/20220330162637.pdfIn PDF document text
    • http://barrybusiness-crm.com/ressource/devis-photo/files/6697779127.pdfIn PDF document text
    • http://studiomanzella.com/userfiles/files/kefimavaf.pdfIn PDF document text
    • https://gabudusufixojur.weebly.com/uploads/1/3/5/3/135339303/eb7954bcd8a7.pdfIn PDF document text
    • http://rent2day.ca/ci2/userfiles/files/bexedoratubavoveri.pdfIn PDF document text
    • https://fikadodovawewa.weebly.com/uploads/1/3/4/3/134320255/1426041.pdfIn PDF document text
    • https://varigero.weebly.com/uploads/1/3/4/4/134443598/rimuxizizig-sivuzofuxub-guxujoga.pdfIn PDF document text
    • https://nobibiraxofos.weebly.com/uploads/1/3/4/9/134904538/3973323.pdfIn PDF document text
    • https://zaloposigino.weebly.com/uploads/1/3/0/7/130739621/puritanikajuz.pdfIn PDF document text
    • https://lirisuvobuku.weebly.com/uploads/1/3/5/3/135399047/vuxokifejasa.pdfIn PDF document text
    • https://kuvekimat.weebly.com/uploads/1/3/6/0/136052924/7364362.pdfIn PDF document text
    • https://zexejofamimow.weebly.com/uploads/1/3/1/4/131438337/gezanezena.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c255.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c255.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC255 10496 bytes
SHA-256: 090676d2e1d5542601eabfc62951af017ea277bd9b3b8cb644b00badb865c23a
font_01_sfnt_off0000da17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA17 16908 bytes
SHA-256: 9433a5e96158f641eecfd075603ab46fd8cdcf20aad9219c3fba4ed7ce46781a
font_02_sfnt_off0001064e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1