Malicious PDF — malware analysis report

Static analysis result for SHA-256 480ecb514700dde4…

MALICIOUS

PDF

86.1 KB Created: 2021-03-15 02:16:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 16051bfd2d178c2ffbbf73d9b506db2d SHA-1: 55a88abc11daa61542bb1ec401ac826d09076e20 SHA-256: 480ecb514700dde4913c7f5d5bbc8f5229bc9451ca272d5db7c45aaa4fc49aa5
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'ponafet.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'school catchment area nsw', aiming to trick users into clicking the malicious link. No scripts were extracted, but the presence of external URIs and the overall malicious classification strongly suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/wix?keyword=school+catchment+area+nsw
    • http://ingmijn.com/simplifying_expressions_with_indices_worksheet8bte0.pdf
    • https://cdn.sqhk.co/xotalawad/dhiifUN/60709835852.pdf
    • http://mamajan.space/vuvazxahp1.pdf
    • https://cdn-cms.f-static.net/uploads/4448540/normal_603b705d31a33.pdf
    • https://cdn-cms.f-static.net/uploads/4405193/normal_5fd678490090c.pdf
    • http://citruss.space/the_door_in_the_wall_hg_wells_character_analysistqj28.pdf
    • https://cdn.sqhk.co/jivonaxadu/hjxiivc/ncg_lapeer_cinemas_movie_theater.pdf
    • http://edayafar.xyz/how_to_find_installer_code_dsc1j2a7.pdf
    • http://abistrans.ru/green_eggs_and_ham_season_2_release_date_canadab8iek.pdf
    • https://cdn-cms.f-static.net/uploads/4367301/normal_601d624c242b8.pdf
    • http://dapabikokewe.iblogger.org/singer_sewing_skills_reference_book.pdf
    • https://cdn-cms.f-static.net/uploads/4498324/normal_604386f6d0988.pdf
    • http://alifan.store/olanda_alkmaar_mercato_del_formaggioojbdb.pdf
    • http://vir-tus.com/polasevu1x349.pdf
    • https://cdn.sqhk.co/tumosirewuw/dpiaxih/rejebivividufizejef.pdf
    • http://pay-order.info/40780803797yoymp.pdf
    • https://cdn-cms.f-static.net/uploads/4485570/normal_5fd3210ee3792.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mixivilewajule.epizy.com/beped.pdf
    • https://uploads.strikinglycdn.com/files/bab232a3-c70a-4911-8ee9-401305ba25d3/evcon_air_conditioner_price.pdf
    • http://werekixaw.epizy.com/bed_wars_mod_apk_1._5._10.pdf
    • https://uploads.strikinglycdn.com/files/04c2417c-15c7-47cb-84d5-071960a94095/tuvataxasogawetamifuju.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011264.bin
ab1c1ca9c75b4c339bd44b6629570343c74a6d2ac2952ddebe4e7879af01b7f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x11264 5236 bytes
font_01_sfnt_off00012415.bin
b21cdbf547400734521a103d0e0cc52df0f34489d04b17382de205ed84e1efc2
pdf-font-stream PDF embedded font (sfnt) at offset 0x12415 11388 bytes