Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2d18af2f733deb…

MALICIOUS

PDF

99.7 KB Created: 2021-07-31 19:35:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0c8ec30a3f958cfe7cf3cedc2bd5a319 SHA-1: 74a1e5e435456ce692d6c2c504bf386917701803 SHA-256: 2d2d18af2f733deb262a75e7bb26ed11550331b52bfd6a687d0aaf45437b2723
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains embedded JavaScript and a link farm pointing to multiple compromised websites, suggesting it's part of a phishing campaign. The embedded JavaScript likely attempts to exploit vulnerabilities or redirect the user to malicious content. The link farm aims to increase the chances of a user clicking on a malicious link, leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.
  • 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://wegofa.com/userfiles/file/jakigub.pdf
    • http://currycornersugarland.com/admin/images/file/231170090.pdf
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b44574f301---80608969594.pdf
    • http://mulroyenvironmental.ie/userfiles/file/9770859802.pdf
    • https://digitaldaya.com/imagenes/file/71569104199.pdf
    • http://irinaburmistrova.ru/files/xaritotufegepelubixifefir.pdf
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b699b6dd2e---78204610871.pdf
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/cc178d0a050c53e81cea28e3b38fafa8/15553356829.pdf
    • http://arohitourandtravels.com/userfiles/file/rolojeninalegivofoforum.pdf
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160776eb8e84c5---sivosugafenivusizar.pdf
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c87de881c30---58093670328.pdf
    • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f85da33294---nigaraleturopedegu.pdf
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c65ebfa0f60---fapipagilezavupuwosusonu.pdf
    • https://aquafilling.com/userfiles/file/pewibitefoxozupevu.pdf
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/97ae52c4c8f6c64f3b35a16035d73235/lejatanozixujovodajoje.pdf
    • https://perfecthospital.net/FCKeditor/file/59536456669.pdf
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/trfaeb2jrjvo6tsah00uvqrr7n/37076423834.pdf
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/d2ab11bd48546881a87d82854c2c4931/xokemizi.pdf
    • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/69679958493.pdf
    • http://digitalpolicycouncil.com/imagenes/file/bofenojixag.pdf
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1130cf3cc7---zosekodojomi.pdf
    • http://cyklo-sport-servis.cz/UserFiles/File/rinarufevewev.pdf
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/e260eca7b2f41badb0e0842f802a6249/matuwuratozubiwid.pdf
    • http://steps4cancer.org/clients/a/a7/a78c374070a178914b502abaf3db82b8/File/14480494098.pdf
    • https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160877700c431e---darobuzuvugixuragifisu.pdf
    • http://angarakshaksecurity.com/userfiles/file/48336474505.pdf
    • http://lapawan15.com/shop/fck_file/file/72283699945.pdf
    • https://tndvn.com/js/ckfinder/userfiles/files/814277779.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=fractionation+seduction+lines
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012349.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12349 16792 bytes
font_01_sfnt_off00013b5b.bin
8187c80005a8fb8655d45c3ef5ead94aca5d1da4f6020c4fc5a6b7c96ede2023		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13B5B 17588 bytes
font_02_sfnt_off000168fc.bin
52e1986c1bb558a8daf62450656a274334e2df3eab2d7eb64e54a1a5e61a75ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x168FC 10440 bytes

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