Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fef748378b3d109…

MALICIOUS

PDF

74.5 KB Created: 2021-01-30 15:02:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: d0d81e59b47c1e425112742e9f5537b2 SHA-1: 63e05a219e74dd255f70c9f3bd91657798ca7cfd SHA-256: 0fef748378b3d10954aaf088dc4f95ee8ad3e62b5fb696b3074da83637ed4732
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains metadata related to PDF generation, but the primary malicious activity appears to be the redirection to external, potentially harmful, websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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 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://jacksth.ru/aws?utm_term=example+of+executive+summary+report+for+projects PDF link annotation
    • https://fekebejoluxoji.weebly.com/uploads/1/3/4/3/134309121/da5af7b103.pdfIn PDF document text
    • http://greatholl.com/56066825335ejrvy.pdfIn PDF document text
    • http://momentshop.space/free_christmas_events_near_me_todayomuhs.pdfIn PDF document text
    • http://biggymstoe.com/ice_machine_for_knee_replacementxku8c.pdfIn PDF document text
    • http://extraterrestrials.space/715218583413vneo.pdfIn PDF document text
    • https://vefutafefu.weebly.com/uploads/1/3/4/8/134882527/vigigotobafa.pdfIn PDF document text
    • https://kujivorel.weebly.com/uploads/1/3/0/7/130776875/3eeaaaf832d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417997/normal_5fc858dd4c100.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/zuwabadudan.pdfIn PDF document text
    • https://levevozupub.weebly.com/uploads/1/3/1/4/131407214/a30a7.pdfIn PDF document text
    • http://agent-spv.space/tarogevomizukedipxkduc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372086/normal_600021ce91474.pdfIn PDF document text
    • http://pupofikavize.iblogger.org/xodivifeminedojililed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445731/normal_5fe41cf0d7b50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422637/normal_5fe642d10e236.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kudowo/gemesapudivemanogituva.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/chrome_app_for_android_mobile.pdfIn PDF document text
    • http://fetapewifug.epizy.com/72257191439.pdfIn PDF document text
    • http://nulesuli.epizy.com/electronic_circuit_components_and_their_functions.pdfIn PDF document text
    • http://roxutudutupit.epizy.com/charlie_s_angels_2019_soundtrack_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/jack_sparrow_lonely_island_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/boroughmuir_high_school_uniform.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e56b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56B 5424 bytes
SHA-256: 9fd95d6f80804a3725474d0f8e576238cd1f73e81cddca8e66c6f23ef668fd1c
font_01_sfnt_off0000f7e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E4 10624 bytes
SHA-256: 0dbafcd6a383d6afbe254ba260231c8a64f3c6adb532cb99c4651afdc261fa7c

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