Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae8eb292dfd5454…

MALICIOUS

PDF

271.0 KB Created: 2021-08-14 03:55:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 700c456d7638b05658fe4c66bd946ad7 SHA-1: 18edd09dd61cd6e8f7483341fe26b8007632123a SHA-256: 2ae8eb292dfd5454f7309e4f2a94e62cf04ae63a6119330296b6a0aa36f8316c
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple links to compromised WordPress sites, suggesting it is used to redirect users to malicious content or download further payloads. The presence of external URIs and IP literal links points towards an attempt to exploit users by directing them to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9692

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • 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://ebonit.light.bg/includes/libs/ckfinder/userfiles/files/75331557906.pdf In PDF document text
    • https://taipeitccia.org/CKEdit/upload/files/73486070983.pdfIn PDF document text
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/361e8ee26260b600998eb0f4c38b5132/pupaxodewebajokipazibon.pdfIn PDF document text
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/49bdd0f2059dcd58636310680af1bb71/toneber.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16087e5485472f---xonubam.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/dba194ae753eb6d5d77a79ddeadd2123/kovigofanojamot.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/25674572913.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/86656898336.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b2894270d77---pozikibidoxilikexoxiw.pdfIn PDF document text
    • http://sotel-perm.ru/site/file/nazudotopok.pdfIn PDF document text
    • https://clubslotalmatriche.com/calcas/file/97064830749.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160e39a8a71b1e---belot.pdfIn PDF document text
    • https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/ln7t72fo2tkac71rpq8rboe1tp/31050708344.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/mv3dtgo89hvmtfbn6e9grb6ii0/lojoruvawip.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/6ca75f15f5c1f254bcc1830630cbd2ca/winawafomi.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/44bb43263da8e1014c175a9d9730838b/vonazekonojoz.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/04567c7002417074c7a9d16a2166cfac/toxejokinewu.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f4ba5e473e---73962347419.pdfIn PDF document text
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/1ea2b12af2921ec0cea2c65233a27359/60541879657.pdfIn PDF document text
    • https://ecowaytechnologies.com/ckfinder/userfiles/files/12259866122.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/ead1ce7e4e921277dec147677b5f12ff/74679674355.pdfIn PDF document text
    • http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a24c6caf935---xafomakaladipuwowusefaki.pdfIn PDF document text
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/7181dadbe2023a084ef2942ce8869135/gimawaxudidovoxasep.pdfIn PDF document text
    • http://pusancard.com/userData/board/file/zokebidajadonameraxudaj.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1608803cd23eb1---vagibelurofirir.pdfPDF link annotation
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=comportamiento+organizacional+stephen+p.+robbins+y+timothy+a.+judgePDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003ac02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AC02 11604 bytes
SHA-256: 190f420ff14570906ba51be15d6d2b40a5fc574041e00f4df08b6414f66c6884
font_01_sfnt_off0003c6f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C6F4 16192 bytes
SHA-256: 43508976b4283b25ad2b3b3b8c2b54a91d4d3378c316f781a93b574cc0286a9a
font_02_sfnt_off0003dcb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DCB4 20572 bytes
SHA-256: c0fd6b375cb172996b1c096bf3f6c1f0085138327e00cf218fb31f52f0419643
font_03_sfnt_off00041228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41228 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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