Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a30a53d4983322…

MALICIOUS

PDF

69.3 KB Created: 2021-09-26 12:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 0b9e8abe056116aa866d5743656efded SHA-1: 1e4a48b94d34a15fc1789eeae79fb60bf39bb10f SHA-256: 32a30a53d4983322def97675d69f4d4ff7f3889fb5b71d68fcdcc2790da3d491
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware delivery. The presence of multiple external URIs and link farm heuristics supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://smidgel.ru/uplcv?utm_term=hacked+among+us+iphone PDF link annotation
    • http://logicamail.it/draft/media/posivede.pdfIn PDF document text
    • https://www.kuwaitpolyurethane.com/ckfinder/userfiles/files/fuwus.pdfIn PDF document text
    • https://nbretail.com.vn/ckfinder/userfiles/files/xowoxiva.pdfIn PDF document text
    • http://movitecnic.com/ressource/site-image/files/95130595380.pdfIn PDF document text
    • http://www.verneteco.com/ckfinder/userfiles/files/32606187801.pdfIn PDF document text
    • http://af.ssla.ru/images/fornews/files/63492516408.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/srj5slkjpn37ihej7movehscb5/8280690466.pdfIn PDF document text
    • http://www.veslovani-vsb.cz/soubory/file/bemixe.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/7702923be269922bbe94e62b4e2514b7/2851073600.pdfIn PDF document text
    • https://munis-roquesalbes.cat/demo/vilalba/imatges/file/57230564247.pdfIn PDF document text
    • https://istanbulbalbir.com/upload/ckfinder/files/mafiganafobegigeduveboz.pdfIn PDF document text
    • http://sampoernastrategic.com/uploads/image/files/42766463308.pdfIn PDF document text
    • http://morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a5f503b19---dujekazoripigejeleta.pdfIn PDF document text
    • http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/55062250253.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/f8ba1f075a270d8bbed38da0f391487c/37433290501.pdfIn PDF document text
    • https://zzhqhi.com/d/files/28401847471.pdfIn PDF document text
    • http://belv.ru/userfiles/file/96238385163.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/fd443ae73b2901926950855d9b5b2061/50308471116.pdfIn PDF document text
    • http://akvatoria.by/UserFiles/files/duwiligebuzomabotu.pdfIn PDF document text
    • http://statsale.com/data/upload/ck/files/tigeb.pdfIn PDF document text
    • http://dajia1.com/upfiles/editor/files/60316393531.pdfIn PDF document text
    • https://sukhayurveda.in/userfiles/file/xuxabusejuxopem.pdfIn PDF document text
    • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/94051847707.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_off0000b12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB12C 10900 bytes
SHA-256: d667bd6eef130ecf254b46da69b4a595f59d29b35f280dd791324215b8c675c2
font_01_sfnt_off0000c9ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EC 14904 bytes
SHA-256: 2b34d1d2d1fc456162e25aa8701a71be903d24097570433151c2655333f1e6c9
font_02_sfnt_off0000ef50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF50 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.