Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af13da026b2fd82…

MALICIOUS

PDF

188.3 KB Created: 2022-02-26 00:00:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 6a160d1246d990f6a94aed307d475078 SHA-1: fe2647ed39598d3f4ee006724e9576935bbc50dc SHA-256: 4af13da026b2fd8226468b645b8e9ba110ee2a1a96bee2aba09662bdc997fae4
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7406

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
  • 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://cafij.co.za/XSRYdR1H?utm_term=laravel+bootstrap+form+generator PDF link annotation
    • https://amursvoidom.ru/media/files/somosole.pdfIn PDF document text
    • http://krzeptowski.pl/file/butewawujixerasoki.pdfIn PDF document text
    • http://abwingsmd.com/uploads/files/mikijupomopubibelel.pdfIn PDF document text
    • http://www.gesas.it/media/mailinglist/file/14573019454.pdfIn PDF document text
    • http://hasomedia.com/userfiles/file/6598236967.pdfIn PDF document text
    • http://haki.tincorner.com/uploads/files/30542619350.pdfIn PDF document text
    • https://cafesca.org/ckfinder/userfiles/files/banavijimemurevaxe.pdfIn PDF document text
    • http://www.ascondir.com.br/Gerenciador/kcfinder/upload/files/42415511375.pdfIn PDF document text
    • http://makassitools.com/userfiles/file///72748620083.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/nuxavidalirametepixexe.pdfIn PDF document text
    • http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1611fd0308e090---56492885866.pdfIn PDF document text
    • http://kindergartenhelden.at/upload/file/wajosawipuxujopuxo.pdfIn PDF document text
    • http://e-hematologica.pl/users/file/77155722655.pdfIn PDF document text
    • http://satyavnetworks.com/fck_upload_images/file/85602821786.pdfIn PDF document text
    • http://alvirne88.com/clients/71477/File/lixadimufadabafegemikizu.pdfIn PDF document text
    • http://china-shengbang.com/upload_fck/file/2021-12-10/20211210022020417620.pdfIn PDF document text
    • https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/b9183677b3d605c6accc73c25bf70822/fivatemepedijizi.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2021-10-12/20211012101631589642.pdfIn PDF document text
    • https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/f93b27b7d0af6b5b79119f3beb9e7fef/12270063518.pdfIn PDF document text
    • https://electroagro.es/pub/files/fipopowafen.pdfIn PDF document text
    • https://ceccarmaramures.ro/userfiles/file/15890525095.pdfIn PDF document text
    • https://warungmimpishio.com/contents/files/wavuminalaveniv.pdfIn PDF document text
    • https://texigo.tw/upfile/files/2021/08/09/25842917689.pdfIn PDF document text
    • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/53422516017.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/nureresazitatamir.pdfIn PDF document text
    • http://equipociclistaugeraga.com/ciclistas/userfiles/file/zitizepovusakodowamuxi.pdfIn PDF document text
    • https://lajhajjar.com/userfiles/file/42428758740.pdfIn PDF document text
    • http://diegogenna.it/userfiles/files/8461956510.pdfIn PDF document text
    • http://phonphangschool.com/upload/files/mozafobiwarolev.pdfIn PDF document text
    • https://polandpools.com/contents/files/42625790892.pdfIn PDF document text
    • http://iviltra.lt/images/files/lijapa.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00027ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27FF6 18876 bytes
SHA-256: 9638cf938ec635028c9bfe1909b6cda388a48d0ad0a5f54e21f9e42f64290f13
font_01_sfnt_off0002b233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B233 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002c953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C953 10772 bytes
SHA-256: 1bf2ff72c7df29adcefb0fd8d2ebaa29c1a318f6ebfd3508695ebe74a97e5bfa