Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b7fc1507391b31…

MALICIOUS

PDF

98.2 KB Created: 2022-04-01 15:59:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 481afd7afe3c6aad87daf9f2905a26b6 SHA-1: d698d6d4092d6bdcaafecb7495d828e5b3392110 SHA-256: 88b7fc1507391b316bb0f261424c34ff1c4f6f527ec8d95bc3bee7e8013a7950
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9834

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://zogomidovuga.weebly.com/uploads/1/3/1/6/131636914/9556678.pdf In PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/pisafibujamoxix_xenijofo_lalalomebo_wopuno.pdfIn PDF document text
    • https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620148d178087---kizonafewizimabe.pdfIn PDF document text
    • https://galafibokuwi.weebly.com/uploads/1/3/4/8/134868726/602160.pdfIn PDF document text
    • https://geserani.weebly.com/uploads/1/3/4/3/134347405/dbf4c515cd.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/19f059b5ac6eebf24874cf226308d7f2/14963914417.pdfIn PDF document text
    • https://karapinler.com/calisma2/files/uploads/pimizegarabazi.pdfIn PDF document text
    • https://parokaonline.hu/upload/files/xubivobomabigezotudixisi.pdfIn PDF document text
    • https://ydyb.com/filespath/files/20220308050450.pdfIn PDF document text
    • https://gejidodedawo.weebly.com/uploads/1/3/4/0/134018108/puzubaw.pdfIn PDF document text
    • https://vebosujile.weebly.com/uploads/1/4/1/2/141219945/pilenitoma.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620eb499f1904---xewexinavevuzuzobugalaxul.pdfIn PDF document text
    • https://melonugijiroduk.weebly.com/uploads/1/3/5/3/135325977/4552733.pdfIn PDF document text
    • https://xebolusuzibukun.weebly.com/uploads/1/3/4/5/134506512/b0c6888.pdfIn PDF document text
    • http://veganogle.es/uploads/ckfinder/files/bakipubov.pdfIn PDF document text
    • https://jgranit.pl/userfiles/file/kamuzu.pdfIn PDF document text
    • http://mindatpeace.us/uploads/files/kurojebotudobopadarule.pdfIn PDF document text
    • https://www.sterlingsez.com/ckfinder/userfiles/files/26715263027.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/22292722972.pdfIn PDF document text
    • http://wxeina.com/userfiles/files/nukufodiv.pdfIn PDF document text
    • http://inoxbienhoa.com/upload/files/wigosilokunasab.pdfIn PDF document text
    • https://heyratacademy.ir/file/tajubufakoguvilo.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/gajepafugugan.pdfIn PDF document text
    • https://gofolepoxi.weebly.com/uploads/1/3/4/8/134882907/bituvuwizifudivujide.pdfIn PDF document text
    • http://spasm-sympo.org/uploads/ck/admin/files/jajakesefudixewovamabux.pdfIn PDF document text
    • https://tetikofigutuda.weebly.com/uploads/1/3/4/4/134445118/fuzesiduxiwepe_nexilavadutus_dudekejijanawem.pdfIn PDF document text
    • https://tozijaletaxe.weebly.com/uploads/1/3/4/3/134312516/c04bc3d57.pdfIn PDF document text
    • https://pobexapuze.weebly.com/uploads/1/3/0/7/130740180/2267684.pdfIn PDF document text
    • https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/d03fb4d85c194ad2bb5e33b7973e1a67/wuzuteratolixegesi.pdfIn PDF document text
    • https://sokudepan.weebly.com/uploads/1/3/1/8/131871622/bisujera-mivit-vilifudejiwax.pdfIn PDF document text
    • https://burlingame.com/wysiwygfiles/file/76181831722.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/jesupomoxuva.pdfIn PDF document text
    • http://pfmconsulting.org/survey/userfiles/files/67872295272.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/11770394791.pdfIn PDF document text
    • http://alwaysshine.com/fileimage/file/55187444617.pdfIn PDF document text
    • https://tirigimufaregi.weebly.com/uploads/1/3/4/4/134464067/mogokomidakav-befunekuzu-penubaberik.pdfIn PDF document text
    • https://novinfasteners.com/userfiles/file/kelos.pdfIn PDF document text
    • https://famalekirujapa.weebly.com/uploads/1/3/1/4/131453917/mejogatoni_wozikemivakefiv.pdfIn PDF document text
    • https://ruwiwiteviporiz.weebly.com/uploads/1/3/4/7/134767377/foletorevixugexu.pdfIn PDF document text
    • https://musibagufes.weebly.com/uploads/1/3/4/5/134587398/gilomufinek_viwojimevepi.pdfIn PDF document text
    • https://wotilawijuv.weebly.com/uploads/1/3/4/8/134852567/taxiwemafetap.pdfIn PDF document text
    • https://revuzigo.weebly.com/uploads/1/3/4/3/134352577/livajawolosi_nonanag.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=realidades+2+3b-7PDF 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_off00011b23.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B23 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13335 17996 bytes
SHA-256: 50e2ed7d80f25d645b8b9af9d0b7c887fb24a58d499843ca5b50aa7a5edbf6f8
font_02_sfnt_off0001623f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1623F 10380 bytes
SHA-256: ffb3baa2e335b3d9cbcbe108ae5647f3461aba0b4fc34609c372e7bd044dd7fb