Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdf52111953b2a35…

MALICIOUS

PDF

283.8 KB Created: 2021-07-14 04:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7c4a07c25017c38f4ede466a332fa043 SHA-1: faf82336568b79eaabb4cdb26c863e2a78b1339e SHA-256: bdf52111953b2a35fdef01058c5033c9e27a5a7ff911bc09514155b3a5ad7f53
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of an advance-fee scam. The PDF contains multiple links to external resources, many of which point to compromised WordPress sites, suggesting an attempt to host or distribute malicious content. While no scripts were explicitly extracted, the PDF structure and the nature of the links indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9759

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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 https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/44a6043ea98eb8d1bc3a334e65176d2c/278615856.pdf
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/bcf51365108a071c646e850ea58b3f50/fitunobuwigifu.pdf
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16090eb9b848f0---94586541772.pdf
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160cd00015a85d---38550810340.pdf
    • https://topupdana.com/contents//files/72660457335.pdf
    • https://aspaeng.com/files/image/files/xisapivogodatixawejobo.pdf
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/cf6dad327f32f9c9059d56c853be53da/12238620125.pdf
    • http://targdenunti.ro/userfiles/file/56230415538.pdf
    • http://augustaelectricalwork.com/editorData/file/tudavisurimuka.pdf
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/02c4b3a65ebc69a05170eb3bda2b8e3b/nezakepa.pdf
    • http://bloomx.com/sites/all/sites/bloomx.com/files/dirimad.pdf
    • http://montaze.org/democms/userfiles/file/79297476673.pdf
    • https://baoholaodong24.com/userfiles/file/80684892962.pdf
    • https://atpl.aero/ckfinder/userfiles/files/58955352021.pdf
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c4ef7b7145546afb3db83eacf7a2cc83/xozovotilizozumon.pdf
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/b75327611abcbdaea440f857769db358/zegirajirasiwuz.pdf
    • http://ekolojikweb.net/upld/userfiles/file/rudiwuzawabafedejeparepo.pdf
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/fd0d4014289338c2a4798993fb07b582/75295817956.pdf
    • https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/897758733fe0456d685ef6d867b306de/roxuden.pdf
    • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160cb8fdcadb06---26460627439.pdf
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/da6abb90c26147a0c82e996a5ec12e7b/42875649123.pdf
    • http://archpiudue.com/userfiles/files/1762426571.pdf
    • http://midiabyz.com/wp-content/plugins/super-forms/uploads/php/files/4bbb392a10916256d5557cd299959487/90104218213.pdf
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095eee8705f7---danijuvugosepaka.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=history+term+paper
    • 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_off000401c9.bin
331100ec030fb272ca097f8dfda45dab7ae39a480afb2502a3e50a561290908d
pdf-font-stream PDF embedded font (sfnt) at offset 0x401C9 18008 bytes
font_01_sfnt_off0004317d.bin
f2323261c80b4115798c06159d1a36a805dd5822768bcc6572fa4c8cadfbac90
pdf-font-stream PDF embedded font (sfnt) at offset 0x4317D 10368 bytes
font_02_sfnt_off00044906.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x44906 16792 bytes