Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed164e6e6c8732bc…

MALICIOUS

PDF

97.0 KB Created: 2021-06-26 06:52:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: 0b9d8668215b1243d705e77e8de71e54 SHA-1: 634b7c0910cf57b0fc33ef8aacc3878b72c02f8c SHA-256: ed164e6e6c8732bc7131f5adc764f5827c9ce01cce22d0910d799d38e7360ff5
156 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to websites hosted on compromised CMS platforms, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9881

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://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16093aa9725ee7---kujedimuvasap.pdf In PDF document text
    • http://adaviestransportltd.com/userfiles/file/bimilulatiwejisanofulazo.pdfIn PDF document text
    • https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/fo112rr87t6uscllapjmg51vtg/29319384066.pdfIn PDF document text
    • https://rubenoferro.com/userfiles/file/90394089513.pdfIn PDF document text
    • http://hevolta.com/upload/file/fanatazataju.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/d095b0d93317bfa88c160f4bf69566f3/nazuxonokuxibegepi.pdfIn PDF document text
    • http://skncn.com/u/files/4700335840.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/f933c919d25b267eefabbeb647bcce27/sotororafete.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/qpli0oumobbd20k9jl4fl1elpi/rekufawowiginatodupef.pdfIn PDF document text
    • http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/60948072766.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/2ece4f76c11a06747aa9fe4824788679/22063834065.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/0cf148a34f11ac829f0807fa2a29a274/tunagepizugikux.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a86d45b7f74---xabubeferi.pdfIn PDF document text
    • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/hj9eo02he16bkjclgsepu3oaa3/minod.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/bepixilome.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/9301cbeb889ea560995516e0b3a63fd6/99837564325.pdfIn PDF document text
    • http://industrialdevices.in/uploads/49235483505.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/4732351f59d6c2b2dfe001174573bbfd/lezezogivifore.pdfIn PDF document text
    • http://espacioschillout.es/images/admin/file/68932550419.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/008e074520b6e739ebb97c6ad7ceabd3/67762451945.pdfIn PDF document text
    • http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/o4t7spdov2ie4i0o7uuard2kg7/89153450505.pdfIn PDF document text
    • https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/95198fde3cff26205f6d790a6f305fc9/48001591490.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=if+i+gave+you+my+love+would+you+comfort+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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7EA 18432 bytes
SHA-256: 6e9d5b5b59a3454635af10233d408914650f09522db11b066d51a34689670b06
font_01_sfnt_off00012714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12714 16160 bytes
SHA-256: 27fa49ca30b1f57c6e4f8b99ad1f73ead7010ce1f191e20d716503af09158f46
font_02_sfnt_off00013c8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C8D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off000154a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154A4 10864 bytes
SHA-256: b2682c93959f44716416401b6d1251db6bbff2f76c5a266c4b0794ab248e3922
font_04_sfnt_off00016d95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16D95 1692 bytes
SHA-256: 6df00093d1a1fd8b8f95901b42ba2863538c90606311dd4adf1993a433792d13

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