Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a5beef2dc5fb97…

MALICIOUS

PDF

85.1 KB Created: 2021-03-14 17:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49bba1a942946f7f68bad44e976fc5f8 SHA-1: b3c15fc254d8f7b0a4c0e896e494cf22e35f27f3 SHA-256: e4a5beef2dc5fb978e290e025d7e7391c21b4ff5109e90bc5c344acae8ad715b
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, which is characteristic of SEO spam or phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious 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://seumenha.ru/wix?keyword=nell+mcandrew+tomb+raider PDF link annotation
    • https://cdn.sqhk.co/dekawako/jbxUQU4/forrest_gump_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/dusimefosix/ilhbibX/vanilla_cake_recipe_easy_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/lemisobe/jfgfGjc/coffee_weight_gain_or_loss.pdfIn PDF document text
    • https://cdn.sqhk.co/jijubexovoz/cmegdgg/bokupebufokufidokuxos.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/hd6aNOp/kufutebos.pdfIn PDF document text
    • https://jenifamizoj.weebly.com/uploads/1/3/5/3/135319667/xarebivev.pdfIn PDF document text
    • https://kaxamutibe.weebly.com/uploads/1/3/5/3/135348628/kupumefuvalum.pdfIn PDF document text
    • https://wegogitizunivom.weebly.com/uploads/1/3/4/3/134369171/3293277.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/ahfC45N/sabaxogogeratizak.pdfIn PDF document text
    • https://cdn.sqhk.co/zirizowesaw/1hdn07o/gladiator_glory_game_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pobopuwubox/igHSic1/tiposawusonevowuj.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/gjaAhCG/pac_learning_vc_dimension.pdfIn PDF document text
    • https://cdn.sqhk.co/bolomadu/dl6hbRl/sazukosaju.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/gj534gg/nvidia_shield_4k_hdr_review.pdfIn PDF document text
    • https://gojenegitoz.weebly.com/uploads/1/3/4/3/134387591/karip.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/ibifNgg/market_restaurant_long_beach.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_a914893b2f2c44d8889494593ec9d468.pdf?index=trueIn PDF document text
    • https://276658a2-c6b1-4a23-bc3b-56c82bce4278.filesusr.com/ugd/f9448a_966f2dba69f1457b874eecb0bca215bc.pdf?index=trueIn PDF document text
    • https://d6d3a1c5-32ce-46e9-ae92-c5b8d84d65d9.filesusr.com/ugd/a3b54b_c43564c6bda146d5bc60b8caaa6cf241.pdf?index=trueIn PDF document text
    • https://e5447efa-8854-4d04-834e-f0bbd7438c8b.filesusr.com/ugd/ac612b_32a05ce388af4d069b6b98e462da38ff.pdf?index=trueIn PDF document text
    • https://77ac2d45-d533-4b4b-a85c-01e81860bff9.filesusr.com/ugd/7f1ad7_b81ee5a5fcc148249897ff21065a5653.pdf?index=trueIn PDF document text
    • https://4c2674ec-1430-4cec-a455-d6a35d10586e.filesusr.com/ugd/38955b_0345a1f6cb4f45ecb07107f58bdef967.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB3 3032 bytes
SHA-256: 5d5ece1484e1da1cf1d8bf94b7197f70595c068ad41cbdcae1d6e8e936567149
font_01_sfnt_off0000f896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF896 5108 bytes
SHA-256: 6868e9e9d76eb11186aae5587319ef5f1f45a435993709ef78cd05e933c03b85
font_02_sfnt_off000109f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F0 10912 bytes
SHA-256: 402da266d1f59340deeb70817691918595c43298b87ad7703560048ad5fa8d06
font_03_sfnt_off00012f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F94 16132 bytes
SHA-256: 4f6d6443d667672870c38ce4e1d364e29e61a0df6fd2d8217a47270b9fff04c9

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