Malicious PDF — malware analysis report

Static analysis result for SHA-256 96995db028088713…

MALICIOUS

PDF

75.9 KB Created: 2021-03-16 17:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a596cfa5858adef568f95273801765e SHA-1: cbf911870badfbbbd71848692ab09f1d3623f828 SHA-256: 96995db028088713865a420ac596f0ec27c20ef27568866f6a4e59cbd4506b3d
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic indicate an attempt to direct users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://vilenefex.ru/wix?keyword=delonghi+dragon+manual PDF link annotation
    • https://cdn.sqhk.co/zodavujera/jyZSpYN/ludo_king_game_hack.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/windows_10_feature_update_1903_size.pdfIn PDF document text
    • https://cdn.sqhk.co/pekobenew/hdYjfhh/sewapanikif.pdfIn PDF document text
    • https://cdn.sqhk.co/sonorizeluwi/bhiUVeK/99299048912.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/fSXaihX/27856280181.pdfIn PDF document text
    • https://cdn.sqhk.co/pubusudes/ECphflD/othello_official_board_game_for_free_online.pdfIn PDF document text
    • https://cdn.sqhk.co/kelanadu/jWcxfic/crew_nation_application.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/fikefafirekifotimikav.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/jGjevib/87625024414.pdfIn PDF document text
    • https://cdn.sqhk.co/rumobotituda/gieW80K/53206438051.pdfIn PDF document text
    • https://cdn.sqhk.co/renonidofel/6AZhhgc/66075199540.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/lbjaHwc/pexikesodebe.pdfIn PDF document text
    • http://www.typoland.com/http://www.typoland.com/designers/Lukasz_Dziedzic/CopyrightIn PDF document text
    • http://www.typoland.com/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9e1b5e4e-b4ab-405b-8fdf-b3b6d7b19c28.filesusr.com/ugd/94ea38_ae6b89b8cac7469d8b2a32279ae048a5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/130d4d29-bace-4f61-b4d9-981014d3732e/vopajalusudarajufafigepik.pdfIn PDF document text
    • https://2178e3ec-2e0a-46e0-af35-d8a6fdfeb21a.filesusr.com/ugd/c411cf_b99761167ac54ba191a0bd37f538de7e.pdf?index=trueIn PDF document text
    • https://a0d2adcf-75bd-42a9-a42a-c23e1c6e9e1a.filesusr.com/ugd/85c99c_9f523964a5e6448a8907c24f747ca180.pdf?index=trueIn PDF document text
    • https://662517ce-f374-4037-aebd-99b1dbe00103.filesusr.com/ugd/0c4177_1ff487290b3f4f868be9923f0f2aa536.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd1c3607-6dc6-4d2d-b483-9d9adcdf0833/91678926331.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebb8e93e-2126-474e-9ab3-c164acebf1df/76412018262.pdfIn PDF document text
    • https://7404da97-7fcf-4d5f-9d5f-3f8644e6773a.filesusr.com/ugd/35f767_df3f30540ac04ea09df91abb26a25414.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e904ff2-e45c-458d-8677-54f4ce98f8d4/english_grammar_books_in_urdu_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01cdc8f0-ef2c-41a3-9442-c5e72fc5e9cb/soxifupabeligitetiduz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1261eb5d-b24c-4f69-aa7a-6d382324d1f6/2019_lexus_es_300h_ultra_luxury_review.pdfIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD297 6168 bytes
SHA-256: de6aacb5a55f55b98bf3ae384f96a51051c900e5a59c241f5198d539ce1a3af5
font_01_sfnt_off0000e237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE237 5060 bytes
SHA-256: 7363ae45a2d63e611caf0a37378620be92c963a433269d2173e8676a90366162
font_02_sfnt_off0000f33e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33E 15868 bytes
SHA-256: 6715137774d7215d1d155bfe3ca36cb7a9014c66681335e0851bfec352b956e3