Malicious PDF — malware analysis report

Static analysis result for SHA-256 de42c4b5d8bbaaaa…

MALICIOUS

PDF

113.4 KB Created: 2022-03-30 13:34:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-03
MD5: 99f1e1afe845c6b9684c3de2deda113f SHA-1: 737fedb346f688e62b90f47f307a1038db964136 SHA-256: de42c4b5d8bbaaaa97596ebe6141541f10f09a3b5e67ab6fc5bad169d407b3b9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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://mawoluji.weebly.com/uploads/1/3/4/2/134265904/8044005.pdf In PDF document text
    • https://nabodavovi.weebly.com/uploads/1/3/1/4/131406515/1983146.pdfIn PDF document text
    • https://zoperugojoboriv.weebly.com/uploads/1/3/1/3/131379643/bepekoxopusiresi.pdfIn PDF document text
    • http://zahradnisluzby.eu/foto/image/files/togogijibatifewag.pdfIn PDF document text
    • http://nguyenthaotech.com/upload/files/42968794840.pdfIn PDF document text
    • https://jubunukaf.weebly.com/uploads/1/3/1/4/131483214/16f7270520f.pdfIn PDF document text
    • https://fixiruwu.weebly.com/uploads/1/3/6/0/136082318/14b360a97da81.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/bajirevuwabokiwagozugadur.pdfIn PDF document text
    • http://underbutter.cz/download/foto/40271108751.pdfIn PDF document text
    • https://aradovan.com/userfiles/file/22914206925.pdfIn PDF document text
    • https://tekoboxini.weebly.com/uploads/1/3/0/8/130814877/891481.pdfIn PDF document text
    • https://meverelalopabij.weebly.com/uploads/1/3/4/1/134108836/ramuwuleveji_sofulatap.pdfIn PDF document text
    • https://zejanedigerexig.weebly.com/uploads/1/3/4/7/134757062/ferepufepovajalasalu.pdfIn PDF document text
    • http://tribeninepal.com/dbros/public/ckeditor/kcfinder/upload/files/76762546692.pdfIn PDF document text
    • https://zosumomaxin.weebly.com/uploads/1/3/4/0/134040430/753765.pdfIn PDF document text
    • http://nhuaduongnhapkhauaz.info/upload/files/72547566082.pdfIn PDF document text
    • http://nandishoverseas.com/UserFiles/File/powodudoxaxegimojiwebolez.pdfIn PDF document text
    • http://bangtaisay.com/uploads/userfiles/file/52499047637.pdfIn PDF document text
    • https://tomorrowhubs.com/upload/users/files/duborita.pdfIn PDF document text
    • https://noxogilokamaga.weebly.com/uploads/1/4/1/2/141259145/a74fd9.pdfIn PDF document text
    • https://lomekizawulom.weebly.com/uploads/1/3/4/7/134704223/xajaxiwukon.pdfIn PDF document text
    • http://sablinproperties.com.bd/public/admin/assets/ckeditor/kcfinder/upload/files/78368372803.pdfIn PDF document text
    • https://fupegaketivira.weebly.com/uploads/1/3/4/8/134887529/2100197.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=np%208132%204%20errorPDF link annotation
    • 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_off0000dbce.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dbce.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBCE 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000f272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF272 10184 bytes
SHA-256: c1560ed52f243e4822bb423b39f94a8ce807e7cdc9aead8c014e2dc4386d0b33
font_02_sfnt_off0001097e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1097E 19720 bytes
SHA-256: 355bb49febfbd368828946b455de9be730a08101c3ab7950870babe1eace2485
font_03_sfnt_off00013b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B59 44904 bytes
SHA-256: 34cfbe9a46d9df86929c49036deaea77a015ac307d9a6ef97ab938d8f40ea248