Malicious PDF — malware analysis report

Static analysis result for SHA-256 94eabee2cd4ee4fd…

MALICIOUS

PDF

81.5 KB Created: 2021-09-06 18:17:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 5e1adf6f8b17145898c1bc48c5bf9004 SHA-1: 667c0557f4ec1b924f7e4f882749b0ab42ae2534 SHA-256: 94eabee2cd4ee4fd52aa7cb4477771eabc03fac8d9d007e0942bbc5de7414307
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF that exhibits characteristics of a link farm, with numerous URLs pointing to disposable or compromised domains, suggesting an attempt to distribute malicious content. The 'SE_INVOICE_LURE' heuristic indicates the document's content is designed to trick users into clicking these links, likely by posing as an invoice or payment request. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 http://55pluscommunityspecialist.com/userfiles/files/lajonugud.pdf In PDF document text
    • http://alt-1c.ru/userfiles/file/futewori.pdfIn PDF document text
    • http://reclameindex.nl/images/uploads/jopigikezare.pdfIn PDF document text
    • http://marymo.ru/uploads/files/vojubexukokivibotopikela.pdfIn PDF document text
    • http://dentherapia.hu/files/file/99311264469.pdfIn PDF document text
    • https://cepatdaftargroup2.com/contents//files/92669713525.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2f8db61024---kewamujovawafekari.pdfIn PDF document text
    • http://falconfam.com/ckfinder/userfiles/files/61653782693.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/suluufavbviq8ovqs465ievoj4/fugeg.pdfIn PDF document text
    • http://wsm.hk/images/uploadfiles/file/xibagasenomunasigutikukel.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b93a48b41b5---nupixin.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/tufusakoku.pdfIn PDF document text
    • https://sasalidayanisma.org/uploads/file/91510706180.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609bebfeaf85d---vasim.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16093f5cc5fd9b---dazisujesuvidagixuruwi.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e1eeab8bc---dolebisirimajuzuwi.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/27a5c4dab3a976fe90e986ab6adedd9f/nenudexifasufibisumus.pdfIn PDF document text
    • https://kaplaitalia.it/userfiles/files/96944470791.pdfIn PDF document text
    • http://skonasystems.com/userfiles/file/kavefokif.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec89f98759---rubixapot.pdfIn PDF document text
    • http://tostonet.cl/ckfinder/userfiles/files/kekotedevaletilo.pdfIn PDF document text
    • http://thienlongadv.com/upload/files/fuzow.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=thymeleaf+to+pdfPDF 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 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_off0000d4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FD 20060 bytes
SHA-256: 68d5b6c6a33eeb1c736ab8053805ec1c21c86b38294b7f626a5a26f3f6cd1699
font_01_sfnt_off000109a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A7 10376 bytes
SHA-256: 0ab91052cdceb8585568faefda658f4386d139a88144f17647cfd76b53f8775c
font_02_sfnt_off00012125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12125 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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