Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c78287990007ee…

MALICIOUS

PDF

78.5 KB Created: 2022-03-31 18:46:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: f2c655db6e1ecd8b55948fbef1965f05 SHA-1: 3e924ffe6ebd4339f89683777d0c858c9febd02e SHA-256: a9c78287990007ee66e4ef00598087a3f4ef413f455f9b4f7d9b328d05f0ed52
186 Risk Score

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://sunuf.co.za/YmrXLWy8?keyword=texas%20instruments%20ti%2089%20titanium PDF link annotation
    • http://ariogalospspc.lt/userfiles/file/4724820042.pdfIn PDF document text
    • http://longarmquiltingacadamy.com/fckeditor/userfiles/file/37500560254.pdfIn PDF document text
    • https://murenazomof.weebly.com/uploads/1/3/4/0/134012525/lowejifulebofinib.pdfIn PDF document text
    • http://cargologicru.com/sadm_files/77510520318.pdfIn PDF document text
    • http://hyundai-baoloc.com/luutru/files/joxasodad.pdfIn PDF document text
    • https://xidusogosogi.weebly.com/uploads/1/3/4/3/134313600/miralefetovipadoj.pdfIn PDF document text
    • https://fodumalape.weebly.com/uploads/1/3/2/6/132695584/288585.pdfIn PDF document text
    • https://dexexufadojobiw.weebly.com/uploads/1/3/4/1/134109071/445a766.pdfIn PDF document text
    • https://laxepesijuniz.weebly.com/uploads/1/3/1/3/131383562/a8e79607be.pdfIn PDF document text
    • https://bigirafu.weebly.com/uploads/1/3/4/4/134494330/ribeni.pdfIn PDF document text
    • http://i-tos.com/userData/board/file/bitozavadodoxupisibakeb.pdfIn PDF document text
    • https://venevivoxeda.weebly.com/uploads/1/3/1/8/131857756/1e406cc0a57a.pdfIn PDF document text
    • https://expomediainc.com/upload/file/barovilijuxutiwazu.pdfIn PDF document text
    • https://fofuxexofinob.weebly.com/uploads/1/3/4/7/134717506/6633649.pdfIn PDF document text
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/2424c6a04a3337ce164a3cdcab0ebfb2/nurapuzajalegamejededas.pdfIn PDF document text
    • http://matrix-work.com/uploads/files/2267293826.pdfIn PDF document text
    • https://livuwijonirib.weebly.com/uploads/1/3/4/7/134732661/be752da.pdfIn PDF document text
    • https://gekiwudev.weebly.com/uploads/1/3/4/7/134769606/petutuza.pdfIn PDF document text
    • https://gabudusufixojur.weebly.com/uploads/1/3/5/3/135339303/2142538.pdfIn PDF document text
    • https://vikta-fish.ru/upload/files/kuwunadasixota.pdfIn PDF document text
    • http://info56.ru/userfiles/file/99412272750.pdfIn PDF document text
    • https://wunapeno.weebly.com/uploads/1/3/4/6/134621426/db579a927784095.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_off0000c965.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c965.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC965 10644 bytes
SHA-256: a7d5e79cd2cb2841740bdb73d5aff6447bfbce3e27188c8cea48e094c39ac1cc
font_01_sfnt_off0000e1d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f9e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E7 19372 bytes
SHA-256: 82056e9649e7d6a708a20b56a54952606a26872a2ff555de1ceb30a9dceda13b