Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e47b89bdd975ac…

MALICIOUS

PDF

80.2 KB Created: 2021-03-27 22:55:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ff52a4a03272b789f18630a83e2e8193 SHA-1: 6eaf1c7b702d01812876ba98b555e0d710414fa9 SHA-256: 30e47b89bdd975ac99ddf372cc5411bd4ef4f84186ec4aec3d4e7f2a338c8d18
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure, potentially leading to further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://druttle.ru/wix?keyword=%25D7%2594%25D7%2596%25D7%2590%25D7%2591+%25D7%259E%25D7%2595%25D7%2595%25D7%259C+%25D7%25A1%25D7%2598%25D7%25A8%25D7%2599%25D7%2598+%25D7%259C%25D7%25A6%25D7%25A4%25D7%2599%25D7%2599%25D7%2594+%25D7%2599%25D7%25A9%25D7%2599%25D7%25A8%25D7%2594+%25D7%25A2%25D7%259D+%25D7%25AA%25D7%25A8%25D7%2592%25D7%2595%25D7%259D PDF link annotation
    • http://successinyourlif.website/how_to_cook_corned_beef_on_slow_cookera8z1f.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeform.com/45747549472i51o2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490534/normal_601d634acab02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414500/normal_6023913aad440.pdfIn PDF document text
    • http://nuverlites.online/love_story_music_list_hollywoodx2rb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530910/normal_605a3fd23ef5b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413846/normal_6010e1c1c954c.pdfIn PDF document text
    • http://solapp.xyz/nofuvexewufilimibajekemakjvvs5.pdfIn PDF document text
    • http://gesufumepemu.22web.org/accounting_questions_and_answers_interview.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://filexumif.epizy.com/84341080710.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85445970-ba23-4827-8484-7e4d17a30226/how_many_calories_in_a_10_inch_margherita_pizza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc9ce23e-fffc-4c7a-8a8c-6e18717b465c/garmin_vivofit_jr_2_battery_issues.pdfIn PDF document text
    • https://01477de9-116b-42a6-a62c-54244336611e.filesusr.com/ugd/dea9e9_c209d943104a4e9fb99425ad659a33c1.pdf?index=trueIn PDF document text
    • http://wuxipuretox.rf.gd/potomor.pdfIn PDF document text
    • https://09972071-4174-499b-90b1-de3619f59f53.filesusr.com/ugd/d1c05f_609d06eda7d44635b47216fd70634e6c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/760f2f88-65e9-4078-b896-6ec565a71b07/55192036643.pdfIn PDF document text
    • https://c0b8f06b-4e98-4d3d-89ef-2f08caba629a.filesusr.com/ugd/0c8cc8_192fa44c89364511bcd1688940eb0d8c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/328dd97c-6a8b-4064-b6f5-39df5b02f91d/milwaukee_safety_glasses_home_depot.pdfIn PDF document text
    • https://53002a68-e35f-4167-ac88-1ab9777d7e72.filesusr.com/ugd/f5bc2a_d8665a6dc4f940fabdf97b94cc514c1e.pdf?index=trueIn PDF document text
    • http://sulosuduvemog.epizy.com/96613984379.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_8ed3e180a0bd429cb01c5d3e7d7e84a3.pdf?index=trueIn PDF document text
    • https://4121a797-204a-431c-92a8-8e24072fb342.filesusr.com/ugd/b972d5_152613b56cf94b1b8c7a85421741c0a8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/934e921c-8acb-40bc-8e46-14caf860800e/john_deere_145_automatic_parts_manual.pdfIn PDF document text
    • http://wagimaparojova.epizy.com/free_template_indesign_portfolio.pdfIn PDF document text
    • https://5c09c65f-4728-49e3-9562-8692e696fc4f.filesusr.com/ugd/32acb1_cdb181bd36074fa593008800c9202134.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB0 5684 bytes
SHA-256: 04b163a567dff30b6023e857c6c5d6b19f8042e1e54333bae56a3d6c4d960a08
font_01_sfnt_off0000f27f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF27F 12188 bytes
SHA-256: fad7109a48d4109be2b7051da2eb01e68899e79cc9c4afbdb61754b9cb25adf1
font_02_sfnt_off00011c74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C74 16388 bytes
SHA-256: 8add6ee5ad60777b15a25f95455b06064f41a3a165a44ea5b357a470782dadff

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