Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dccd72acfb2f4aa…

MALICIOUS

PDF

85.9 KB Created: 2021-08-12 05:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: ca0cebab64d3f063dc46a16671fda285 SHA-1: e2701be96d6f226466a9afd51189fce9b8736b66 SHA-256: 2dccd72acfb2f4aa4a1dfe816a635419773a88c041b8f9773f5b9303de7cf5aa
176 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of a callback lure heuristic suggests a potential phishing or tech-support scam pretext to encourage user interaction with these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/2319360faef2066fe99e67bc8d385199/bovugujojo.pdf In PDF document text
    • http://phantasos.org/userfiles/file/vuwuwazefazadavera.pdfIn PDF document text
    • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/nsh5pi7nd15n4ue2ifm3vk9i35/rajegakiz.pdfIn PDF document text
    • http://upsshop.ru/ckfinder/userfiles/files/78432699969.pdfIn PDF document text
    • https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/9c3ad4269de4a87c4ddfdbcfade72a23/zubiwazejolinebi.pdfIn PDF document text
    • https://kheops-so.fr/ckfinder/userfiles/files/57784490715.pdfIn PDF document text
    • https://cdmsig2.com/ckfinder/userfiles/files/79791331079.pdfIn PDF document text
    • http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e4f994fa5---2727318133.pdfIn PDF document text
    • https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/bc80b307ebec3802deac6eb439962a6d/vifijovilor.pdfIn PDF document text
    • http://adacu.org/userfiles/file/20210802151153.pdfIn PDF document text
    • https://educationindiajournal.org/ckfinder/userfiles/files/77147870316.pdfIn PDF document text
    • https://procogs.com/FCKeditor/file/xagilesipikukoviwomiper.pdfIn PDF document text
    • http://tycoonmedical.com/userfiles/file/sazenutugiziridiramoturi.pdfIn PDF document text
    • https://ce-mi.pl/uploads/userfiles/files/70712913645.pdfIn PDF document text
    • https://giant-nano.com/app/webroot/userfiles/files/64047215381.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/e51d6c575491fe22c2c5eba73fff0146/lovonebususa.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/nbmeik6q1q3ntnbbn7n15ac0ri/gujozunomuva.pdfIn PDF document text
    • https://paron-rebondir.com/uploads/files/86007273745.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/rurupuzuvojufim.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f624616842---rowokogupolipalizubavenu.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/7e2fccd227ddba37a42dba85a5ab5505/voboje.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=how+many+employees+does+lowes+have+worldwidePDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC34 17056 bytes
SHA-256: 6815ae7f7cf20b6a5c40e15dcec5547dd9ef18722bb3c2f371d1a019920ca1e7
font_01_sfnt_off000118d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000130eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130EB 10816 bytes
SHA-256: f4fa96b4af10d90c964692ddaa2db5d7ee907a72be17c6bb7326bd27cb8a907c

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