Malicious PDF — malware analysis report

Static analysis result for SHA-256 48d9204791229234…

MALICIOUS

PDF

73.7 KB Created: 2021-06-05 13:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fd334cf0ba6159486101b37ff84051c SHA-1: 0627fbf62824bc2fa337d4b25d87a35ead3cbd9f SHA-256: 48d92047912292342e60fbb5ce35747951503a2cdf974681577176d7554a3f70
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution attempt. The presence of a 'download' lure and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly indicate malicious intent. The document body, though partially corrupted, references 'Miracle thunder crack version download', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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 https://synerhu.ru/uplcv?utm_term=miracle+thunder+crack+version+download
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/d223aa7f67767445ae95df6481659dc6/jisamozapezozolagog.pdf
    • http://chocoenglish.com/_UploadFile/Images/file/jevesilasalidibaku.pdf
    • http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608305ad00336---sivinifodasazudibu.pdf
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a90428a98ca---visubepejogobepakufawupe.pdf
    • https://www.tanyadantus.com/wp-content/plugins/super-forms/uploads/php/files/5a0cb5a389de01e1d8c416a3a4ae4183/xomonutosawabekixinalev.pdf
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad41b29ff7e---16607484339.pdf
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2a9886b60---40012986694.pdf
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/9v6nd8r37dec4e5s5a31pb448b/manazapenesizilemetiforel.pdf
    • http://dynamic1984.com/user_file/file/25491918136.pdf
    • http://alliance-ltd.com/userfiles/wefutufemasudisele.pdf
    • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/pebij.pdf
    • https://www.brightfieldbusinesshub.co.uk/wp-content/plugins/super-forms/uploads/php/files/hfnral9ta678a80en35r2qq9pu/9715933129.pdf
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec56c9df01---95452855496.pdf
    • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/88362139175.pdf
    • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/1355446a49b318b1f24d22ded4e335a6/64218064894.pdf
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/857af05608f15d4d53ddb2d1b069e773/19931108346.pdf
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/474ef6ecd1cdb7662db9203d2bc20a58/65658908691.pdf
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080eec1316db---19260645718.pdf
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/u5rs1ev7rrtrt06cheq9rb8uq3/wobeduxironarosugavu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000df57.bin
3740547b973fdf8d053ca7e32a73cc5543f92b2db2bd13fe9183d8c4cd514a33
pdf-font-stream PDF embedded font (sfnt) at offset 0xDF57 5248 bytes
font_01_sfnt_off0000f141.bin
def761bc18f1df864d6d02c595c878d3726693dcb4ec3a2def502fa72c0c2c1b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF141 11348 bytes