Malicious PDF — malware analysis report

Static analysis result for SHA-256 93eb219068f45e0e…

MALICIOUS

PDF

85.5 KB Created: 2021-06-29 14:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 31e0db2ae36164a90f71d8a205cfc4ed SHA-1: 6832efac64f8b61677fe7cd5f953fbc0bb5a90f4 SHA-256: 93eb219068f45e0e8fee2bfab7b38171aef85b49d924d6a40924038aae225f3c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It functions as a link farm, containing numerous URLs pointing to compromised websites and disposable hosting, likely to lure users into clicking malicious links. The presence of external URIs and link farms suggests an attempt to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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://nomylo.ru/uplcv?utm_term=median+meaning+in+english PDF link annotation
    • https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2dec7afb95---93337119118.pdfIn PDF document text
    • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/c6bcf69db05425fb82505fe98be04eb8/miwaj.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608224e3ad6d5---39046624329.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/a2a236bb832119d4a8cdd59044e69ba8/4396917827.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/6k9dkt983dl8n91c19m9l1tf4a/88148039093.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1607f69865e12b---50132686270.pdfIn PDF document text
    • http://bpsstudio.hu/uploads/wizowimufewufopifavuwiga.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609676a5770f2---dofajuzoxotodadez.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/79237975555f3395a1146ddf01cf3dbb/tavexurilela.pdfIn PDF document text
    • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/l4871ot28r6nt9jid6nivjifc8/renidilezuza.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/68d8hkc83pj0e3nou49jfouq9u/28909055929.pdfIn PDF document text
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/tthgs7gjhbhnm7ndetn45f1k9e/59398856984.pdfIn PDF document text
    • http://eros-arena-reutlingen.de/eros/userfiles/file/jometirozerimigegiku.pdfIn PDF document text
    • http://essiac.cz/UserFiles/file/timimusebabegi.pdfIn PDF document text
    • http://qca.ch/userfiles/file/siluxilikipalefikeg.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ab92f4de647---86035296089.pdfIn PDF document text
    • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee0f9c785a---43827483890.pdfIn PDF document text
    • https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/2857abb3a1e7e6460d0ae5816f5fdd34/59015568030.pdfIn PDF document text
    • http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160cd052632919---donimax.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160da49c8586b2---saxugubezozajes.pdfIn PDF document text
    • https://fruitssupplier.com/app/webroot/img/files/77795368883.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160891fe7207bd---motus.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/jorozupisoxefikerisudebe.pdfIn PDF document text
    • http://westtech1963.com/clients/d/d4/d4250bc21dcbbf02d7f9bc68df143add/File/gexitomufufesuruli.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eb09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB09 10368 bytes
SHA-256: 66d50979cf8826a94a622a83bf66cfbe6208d3ab064e60f329cec2e97c2a62aa
font_02_sfnt_off000101ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101ED 17692 bytes
SHA-256: 46fa95a5ca4345c9b88df13e960e3b7cdc6b7cc4ae9b027ffa31cbbefa7cb9e9
font_03_sfnt_off0001308c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1308C 16716 bytes
SHA-256: 9205512d3a0c19733d7422dba11b9d1c2e0222aa1d86e9f7fc1690da666f9451

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