Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e93c99d0ec62f2…

MALICIOUS

PDF

88.5 KB Created: 2021-07-20 11:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: f1a06ff10769f49d6bd14318d15ed7fc SHA-1: ecd38345e7febb4434a77330fed5c8078a6aa375 SHA-256: 00e93c99d0ec62f263f2467e228b639a650e0ad415434ebb238b3a772242f33b
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It functions as a link farm, with numerous URLs pointing to compromised CMS upload directories, suggesting an attempt to lure users to malicious content or phishing sites. The presence of multiple links on disposable hosting further supports this malicious pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://thesnowmanicecream.com/ckfinder/userfiles/files/30281389563.pdf In PDF document text
    • https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/phrb4pf1nnlm791jih2eojc3qm/tudam.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/807c4c3a5f94752cd6eb5329093d705a/79293062028.pdfIn PDF document text
    • http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/osi2ha4b3nluhrq1gmj5o15ca5/jiwofo.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/9570024afc111f22a9eb31db216faf0a/vufozabuxin.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/botosuniv.pdfIn PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8d91897b43---duforakunikama.pdfIn PDF document text
    • https://epos.nu/ckfinder/userfiles/files/98579803752.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/354d2de89456fe95abaf38fbb4bc4cb7/54340827132.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0a561b6a0---polav.pdfIn PDF document text
    • https://ajansnigde.com/resimler/files/zoxasekofigepa.pdfIn PDF document text
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607495839ec8b---44007052174.pdfIn PDF document text
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7f4006f26---33768123326.pdfIn PDF document text
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d83cf2e85---fovulakigomizoturuxabu.pdfIn PDF document text
    • http://richiefamilyreunion.com/clients/7/7d/7d03816b951c94fc7c065ced7c7ccdcd/File/pugumanidezup.pdfIn PDF document text
    • https://www.micron21.com/application/third_party/ckfinder/userfiles/files/nipuletomorawe.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/fb18bbe128bfb16dbc437764c8917f69/nelipexudewirojafizefuguv.pdfIn PDF document text
    • https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ba063d50f30---37122286165.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/si7qaj8q8lnrapkrqm8mt29h75/5721194727.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbee5b85b0---80454337704.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/24976689732.pdfIn PDF document text
    • http://africa-emergence2019.com/userfiles/file/64152054602.pdfIn PDF document text
    • https://nusantarabet4d1.com/contents//files/dokupuwomuwusikavujodul.pdfIn PDF document text
    • https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/539dcb58119cb6c221deb379cc42f3fe/44244158134.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=low+income+apartments+near+mePDF 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_off0000f9cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9CB 10532 bytes
SHA-256: 331e715b3b651f8b63cb5c1746c39eaa258ea1f8b292367e6ccbfc83f17ed11d
font_01_sfnt_off000111d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111D4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000129e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129E6 16492 bytes
SHA-256: 287ab489e50c545ed03d05826dfce137d4fc1c19d5687a2d46b931bcecc7ea14

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