Malicious PDF — malware analysis report

Static analysis result for SHA-256 59687f8b69b077cf…

MALICIOUS

PDF

69.9 KB Created: 2021-03-20 01:59:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: f495462be35e9853baa3fe33564e8b6a SHA-1: 2ae60d4523c2a43ac3d5fb2f2810eda3325b45f4 SHA-256: 59687f8b69b077cf1ccc923214395c6b0198cd4839f91e88870bf2b649af90b7
126 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, with one specifically pointing to a URL that appears to be part of a phishing or malware distribution scheme. The PDF structure and embedded links suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/award?keyword=cuisine+alg%25C3%25A9rienne+fatima+zohra+bouayed+pdf PDF link annotation
    • http://lamaded.mywebcommunity.org/10359885404.pdfIn PDF document text
    • https://cdn.sqhk.co/nemalerute/e3hdjgy/noxigawikoroperujume.pdfIn PDF document text
    • https://cdn.sqhk.co/vebudirepo/r5VhjHi/99294132934.pdfIn PDF document text
    • https://cdn.sqhk.co/wazilisiko/igficgf/kufomewufawoxunawilobu.pdfIn PDF document text
    • https://cdn.sqhk.co/disumuneriva/frhfwUX/ring_a_bell_origin.pdfIn PDF document text
    • http://kujunat.medianewsonline.com/aaple_sarkar_form_download.pdfIn PDF document text
    • http://waranijovuv.sportsontheweb.net/zubonixasowonu.pdfIn PDF document text
    • http://diluzadumavotux.getenjoyment.net/vudewuzepimosijido.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/PQcgdqH/goat_simulator_goatz_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/bibikodazit/gPL0Xge/97736050621.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/fjcILhb/ball_holder_for_garage_wall.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lexekuduwowig.atwebpages.com/how_much_is_a_trampoline_in_south_africa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8861515-14d4-447d-85e5-799879f36986/is_there_a_difference_between_discipline_and_punishment.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/10848032378.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/7555090552.pdfIn PDF document text
    • https://s3.amazonaws.com/nagev/jafiliratusetokibifanuv.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/dupene.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/zurajazarek.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/pdf_file_crop_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/97293556044.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c69c940-5798-4e9f-845f-9cc4dfe19b49/r_for_data_science_solutions.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_off0000cf46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF46 5792 bytes
SHA-256: e1ee50a0431403d3d8b489b84236b2109fa1b239b04595be7fda6b43cb341354
font_01_sfnt_off0000e297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE297 11720 bytes
SHA-256: 711b2d14e234164f84386e5744852d1173e3dd06d6c2fe21991711154e5a5404

Open this report in the interactive analyzer, or submit your own file for analysis.