Malicious PDF — malware analysis report

Static analysis result for SHA-256 94166a10d1ca328d…

MALICIOUS

PDF

83.3 KB Created: 2022-04-05 20:44:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 49a7fd4674316305275e1d5eeba1f344 SHA-1: eac834246427fb9e30ec15b0483acf4105cb783b SHA-256: 94166a10d1ca328d46467baeb311b158b6eb6a5a28f6e8a22bab8c49aff4d985
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external links, many pointing to disposable hosting services. This indicates a likely attempt to direct users to malicious websites, potentially for phishing or to download further payloads. The ClamAV detection and ML classifier strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yubit.co.za/YmrXLWy8?keyword=how%20to%20switch%20on%20dish%20tv%20set%20top%20box PDF link annotation
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/5785802.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/162107f493d36a---logavivovebifanimiduvukid.pdfIn PDF document text
    • https://wogakidip.weebly.com/uploads/1/3/5/3/135384189/detilugufolo_lederi_madodemir.pdfIn PDF document text
    • https://luxovifawus.weebly.com/uploads/1/3/4/3/134341193/tepoz_sexefunetajifuw.pdfIn PDF document text
    • http://gns3.swiz.eu/files/editor/20119871708.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/bazugosesetixozefidabewi.pdfIn PDF document text
    • https://dakuzewaki.weebly.com/uploads/1/3/6/0/136089440/82153084499af6.pdfIn PDF document text
    • https://dukazegisow.weebly.com/uploads/1/3/0/7/130740117/2059673.pdfIn PDF document text
    • https://meritogaxubov.weebly.com/uploads/1/3/4/7/134767100/dixugabavekoxi.pdfIn PDF document text
    • https://saconsultancy.com/userfiles/file/ritasuwegesebinulofo.pdfIn PDF document text
    • https://hatarozatok.martonvasar.hu/ckeditor/kcfinder/upload/files/98889912977.pdfIn PDF document text
    • https://lukawonudos.weebly.com/uploads/1/3/5/3/135320707/e71a61a.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/71296807376.pdfIn PDF document text
    • https://jutijodofolumel.weebly.com/uploads/1/3/4/0/134012985/dimixi.pdfIn PDF document text
    • https://zunitaxipef.weebly.com/uploads/1/3/1/3/131398356/bodunab_rodakefa.pdfIn PDF document text
    • https://zefisuket.weebly.com/uploads/1/3/4/8/134868467/9959505.pdfIn PDF document text
    • http://sncelamel-dz.com/app/webroot/assets/js/kcfinder/upload/files/fobirukufufoxijon.pdfIn PDF document text
    • https://www.misuhuko.com/assets/kcfinder/upload/files/wozuponiki.pdfIn PDF document text
    • https://pecas.friparque.pt/userfiles/file/naxopenexigitobis.pdfIn PDF document text
    • http://zussobrance.sk/grafika/dokumenty/vanopuji.pdfIn PDF document text
    • https://www.eos.org.eg/ckfinder/userfiles/files/tewadumebumujepan.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_off0000e0b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B5 10688 bytes
SHA-256: bc852f17bf34d82ef734b1197d1537196f0e7f0ef329b1dbf69deee20a7cde58
font_01_sfnt_off0000f8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11106 17464 bytes
SHA-256: 1e3cf8ce6bbf47f85acefa7c53f3d58a52b19a9b86fc1e2e004e012811ed32c3