Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e62cd2d62aeee57…

MALICIOUS

PDF

82.1 KB Created: 2021-09-15 09:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 5dab847e9da7cb2ba844f9455ad0f106 SHA-1: f416498ca162d3cced5162b4e9df6f078b6cebf6 SHA-256: 8e62cd2d62aeee5753047a449787be4c634163610e6e4fc6f9af5ea4658c3662
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is a PDF identified as malicious by ML classifiers and ClamAV. It contains numerous external links, many hosted on compromised or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download' button lure further supports a phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pixomot.ru/uplcv?utm_term=com+sec+android+app+controlpanel+apk PDF link annotation
    • https://mgc.to/sites/web/upload/files/73252483885.pdfIn PDF document text
    • https://binhvi.com/upload/files/20111697029.pdfIn PDF document text
    • https://www.medicalbi.com/ckfinder/userfiles/files/fapafodo.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/userfiles/file/97216128069.pdfIn PDF document text
    • https://fishboat.hr/files/83233994530.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613f0caae5877---207760402.pdfIn PDF document text
    • http://tokyoto.pl/UserFiles/file/pizowonopazapidonejujegi.pdfIn PDF document text
    • http://midel.me/userfiles/file/21152364182.pdfIn PDF document text
    • http://x-site.by/upload/editor/files/jalafapurimudulenisa.pdfIn PDF document text
    • http://silver.jo/ckfinder/blanc/files/mowidugajovederevot.pdfIn PDF document text
    • https://alharithiforcameras.com/ckfinder/userfiles/files/jalesemuvadepar.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/gigejowamawe.pdfIn PDF document text
    • http://heathrowairporttaxi.website/userfiles/file/zapozuzofuruma.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebd636cf26---gezimexebexozimaxezunesi.pdfIn PDF document text
    • http://amongelite.com/ci/userfiles/files/mekud.pdfIn PDF document text
    • http://dxczx.com/ckfinder/userfiles/files/20210909_030917.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/69895145829.pdfIn PDF document text
    • http://sattosushi.com/uploads/files/46846131588.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/84fb07fab2645edffc93db0ea267a4a3/rifaf.pdfIn PDF document text
    • http://cmuniontravel.com/userfiles/file/ruraletigalu.pdfIn PDF document text
    • https://lighthousemacau.com/html_upload/file/bazosirajenesezetupumu.pdfIn PDF document text
    • http://hycxchina.com/filespath/files/20210905024523.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/file/jejodap.pdfIn PDF document text
    • http://ozdermusavirlik.net/userfiles/file/rofik.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C6 10796 bytes
SHA-256: 88afd22764cae85dfd5121ef18940257535d639f2f888129203d6b4d186a9b28
font_01_sfnt_off0000f29f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29F 18312 bytes
SHA-256: ee057d87c7716b7e57aac7a147452bb88739d2ead44bbdf487dd0ed343b9b274
font_02_sfnt_off0001229d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1229D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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