Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8cb013b05196c4…

MALICIOUS

PDF

77.4 KB Created: 2022-04-01 03:51:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 7f301efd370aa85be245e20a912c7b6f SHA-1: fba7ae3704bf3341328fef4cd8e9c110e05cfc37 SHA-256: cb8cb013b05196c44f5bb03f5ab7f325af086153bfa4f36228f21d494cb19591
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://norin.co.za/YmrXLWy8?keyword=casio%20g%20shock%20watch%20straps%20nz PDF link annotation
    • https://jonolepazom.weebly.com/uploads/1/3/4/5/134520471/daa7aaed00179.pdfIn PDF document text
    • https://romovemesokawaj.weebly.com/uploads/1/3/4/4/134479736/gusir.pdfIn PDF document text
    • http://yuhuimachinery.com/d/files/677918417.pdfIn PDF document text
    • https://wavopotajulaja.weebly.com/uploads/1/3/4/6/134631105/1809436.pdfIn PDF document text
    • https://mivetemadika.weebly.com/uploads/1/3/4/4/134471856/45e1c7705.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/edbe5.pdfIn PDF document text
    • https://fodolirikixubug.weebly.com/uploads/1/3/5/2/135297927/5390471.pdfIn PDF document text
    • https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/mufenama.pdfIn PDF document text
    • https://buxufuniwa.weebly.com/uploads/1/3/4/7/134717035/kaponevuledabef-tozufevov.pdfIn PDF document text
    • https://zosojelukik.weebly.com/uploads/1/3/1/8/131871698/tikezonexemu-lewelojit-sobusi-peman.pdfIn PDF document text
    • https://tebefatudu.weebly.com/uploads/1/3/4/3/134329870/zesal.pdfIn PDF document text
    • https://werudugin.weebly.com/uploads/1/3/0/8/130873895/kurajafol.pdfIn PDF document text
    • https://tadasika.weebly.com/uploads/1/3/4/6/134653914/xuvivol.pdfIn PDF document text
    • https://tababara.weebly.com/uploads/1/3/0/7/130739165/1224954.pdfIn PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/pobirutit.pdfIn PDF document text
    • https://podesasi.weebly.com/uploads/1/3/1/4/131437149/6162eb62.pdfIn PDF document text
    • https://bejulukif.weebly.com/uploads/1/3/4/7/134746679/zusebamidubudow.pdfIn PDF document text
    • http://tsetv.kz/app/webroot/js/kcfinder/upload/files/4391318651.pdfIn PDF document text
    • https://wuxemarujixad.weebly.com/uploads/1/3/4/7/134709263/tepewi_kiwedufok_mukigofafosuno_xisowixelop.pdfIn PDF document text
    • https://sazebajamafogi.weebly.com/uploads/1/3/4/2/134265793/musokun-ruxubazub-latotanelot.pdfIn PDF document text
    • https://riderasal.weebly.com/uploads/1/3/0/7/130738784/03af3b.pdfIn PDF document text
    • https://sarerudaguf.weebly.com/uploads/1/3/4/3/134373173/galolavutud_zetavipabenitid_xuzanalijexi_pafofejobipa.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_off0000c7d2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c7d2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D2 10744 bytes
SHA-256: f171f91e5ad86c9e55e4dd7d0920284d2220166c105c6ce3ce0f07240e05b364
font_01_sfnt_off0000e0a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f8b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B7 17820 bytes
SHA-256: f4b4ea7ad11e3eb74672d999c07ea06de76c262f373ba5066f23c38e257340c5