Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e82e695d7133990…

MALICIOUS

PDF

103.1 KB Created: 2021-06-25 20:11:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d1a6072a47b6ea7ef2715075373fbea7 SHA-1: 211b0826a14027d5cff357b94fa96d2b95086163 SHA-256: 0e82e695d713399022df821d7d465fbea2689642c7e75674a45545fffc8e429d
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a phishing lure. The critical heuristic 'SE_SECRET_RECOVERY_LURE' indicates the document attempts to trick users into revealing recovery secrets or private keys. The numerous embedded URLs, many pointing to compromised CMS upload storage, suggest a link farm designed to host or redirect to malicious content, likely a phishing page or further malware. No scripts were extracted, but the overall pattern points to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.
  • 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://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c9774573edd---mimedalodiranifajosa.pdf In PDF document text
    • http://shinies.ru/img/lib/file/kixekoju.pdfIn PDF document text
    • http://tuanlongland.com/upload/files/zeketosofujirevubuni.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/134887834fbafe95a15435797cbf09e9/xiligegixovos.pdfIn PDF document text
    • http://cupta.org/userfiles/files/20210527085551.pdfIn PDF document text
    • https://angkagenap.com/contents//files/61555144685.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ef0c318f0007d961e03ceb67922f71f2/58224975403.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/5c2d5ef76f7cee6af8b0011781148eb5/kusukikoripi.pdfIn PDF document text
    • http://alexhofford.com/temp/files/file/7445820269.pdfIn PDF document text
    • https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/a5177cad8643236f704e34311f4b4620/28082558642.pdfIn PDF document text
    • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/la7n85hq9kdsora6qh530jjnul/rusoxagewez.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca93d9493e---tineloxilavalazedo.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/rubagepemad.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160d061f89cc16---wajulosuwesor.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a5cb3c29725---52516477076.pdfIn PDF document text
    • https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/a19c19035f021bad37145bea4ef6fff1/77671407153.pdfIn PDF document text
    • http://everettsbarbque.com/clients/b/b0/b0b566c85bab127526a414587b81487f/File/fusesafew.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/vidime.pdfIn PDF document text
    • http://azizavacanze.com/userfiles/files/reralir.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+do+digital+signature+on+pdf+filePDF 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_off00012c7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C7B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00014492.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14492 10852 bytes
SHA-256: b48165a18c3fa4ba5235f13faa3808c200aa36aed09b86cdfd93687bd3b2ae0b
font_02_sfnt_off00015d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D8C 18744 bytes
SHA-256: d1efa7b9b3dbf5dc3aa7eafdc0864b0ce4d8ea8c6854d4bde10e10e63a238ef6

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