Malicious PDF — malware analysis report

Static analysis result for SHA-256 6015ec293a047d95…

MALICIOUS

PDF

90.9 KB Created: 2021-06-27 09:26:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: bfb9116e4d0fe41ce4fadea1c72db2cd SHA-1: c560656fd5e170ee82f5aa44f7d32dcc646920bb SHA-256: 6015ec293a047d95900a31e4bf1fa718eb49d591f2b67ce971671066003d5213
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the structure and URL patterns suggest a malicious intent to lure users to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9765

Heuristics 6

  • 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 http://stellamaris.cz/userfiles/vuvewevirumisufapo.pdf In PDF document text
    • https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/6cd2cc7b9771e23a5cf82c0a1a6361bf/xugisorulaxomag.pdfIn PDF document text
    • https://urbanlivin.lu/userfiles/files/54645654137.pdfIn PDF document text
    • https://pametnidom.hr/pametne_kuce/userfiles/file/bizobalalegitiji.pdfIn PDF document text
    • https://loctra.net/userfiles/file/sedirofeduxeli.pdfIn PDF document text
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2735f36d0---mukisawaz.pdfIn PDF document text
    • http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160772434aab1b---33945490763.pdfIn PDF document text
    • https://afayl.com/userfiles/file/10666457759.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160c7acfa3fad9---mazodowukibosojif.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de20512757---nabegepuj.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1f828e52a8---25553618881.pdfIn PDF document text
    • http://www.deep2001.com/images/library/File/furoferijaj.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7f0011f4c---34538061446.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c76e911311a---buvewirix.pdfIn PDF document text
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/v06u7hgi75re2e17ue63kd3gc7/pozezifafekuv.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5006cc7fd---17768516002.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3773a6c08---86712240568.pdfIn PDF document text
    • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/623602b08e62089d210a847ff7dbbe8d/digutuzeti.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbe3f968ae---74999549909.pdfIn PDF document text
    • http://dorp.pl/userfiles/files/miwaritixinaxapotazefilu.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160967263eb5bc---muwifoxe.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/230c94569b0be541a3ec2bb80c7eb8bc/15860034121.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b7aa70942e1---mawodusuvisigevosodotofi.pdfIn PDF document text
    • https://spheresignal.com/app/webroot/userfiles/files/31530433196.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/5db95234c2068f62396c044d894a9460/24415670177.pdfIn PDF document text
    • https://kaptenhoki.com/contents//files/bagevototupeb.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=avatar+the+last+airbender+cartoon+full+movie+free+download+in+tamilPDF 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_off0000e2d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D3 11112 bytes
SHA-256: a09ab489649ae90c838b57ccbf9c0100c83b6c6023c6dee67a49838731b6dd2b
font_01_sfnt_off0000fc9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC9E 18636 bytes
SHA-256: fe6d260bfbbcc8c38c85879ea5e5223825db92fdabd91d2022c02b44b32f289f
font_02_sfnt_off00012d02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D02 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00014513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14513 16220 bytes
SHA-256: 0491461efea0d38e00d742997c562b9409ed1dc9639e8611f706cfa0f0983ac9

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