Malicious PDF — malware analysis report

Static analysis result for SHA-256 e192fdc42973eef3…

MALICIOUS

PDF

65.1 KB Created: 2021-03-23 00:45:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dddda27052c90509ecf3eef32eee85f8 SHA-1: 4d0b105d9acdfdfcce6220fc138222c565bff8c7 SHA-256: e192fdc42973eef360b27cb4526713ed5f6750fec46325423917694c94f96941
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'zajinet.ru' suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/wix?keyword=anatomy+for+the+artist+sarah+simblet
    • https://cdn.sqhk.co/pawapoma/djisKhc/30699891298.pdf
    • https://motoburibekisi.weebly.com/uploads/1/3/4/6/134623685/c910d.pdf
    • https://madoguwulivusi.weebly.com/uploads/1/3/0/7/130775056/ronewigukapesa-xizef-suxujiki-giwufaka.pdf
    • https://cdn-cms.f-static.net/uploads/4462352/normal_601212e08a611.pdf
    • https://cdn-cms.f-static.net/uploads/4465924/normal_603cbac878c55.pdf
    • https://xidumalebuwun.weebly.com/uploads/1/3/4/8/134894794/koliguzomonamo-tavuped.pdf
    • https://jadusulad.weebly.com/uploads/1/3/4/7/134764450/wiwanevenekiv.pdf
    • https://cdn-cms.f-static.net/uploads/4466657/normal_60558cbcc5a59.pdf
    • http://inostrana.com/mta_bus_routes_queens_new_yorkdzc4g.pdf
    • https://cdn.sqhk.co/kofisosiz/gjqicgc/vegetable_chopper_amazon_canada.pdf
    • https://jekufagiz.weebly.com/uploads/1/3/0/7/130739150/dozevo.pdf
    • http://italywow.pro/sole_f80_treadmill_for_saledyoq9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nonabafat/belkin_n450_db_factory_reset.pdf
    • http://kapudezab.rf.gd/subetitijunaxesunibukoleg.pdf
    • https://s3.amazonaws.com/gazivemon/report_stolen_passport_card.pdf
    • https://s3.amazonaws.com/patilawasu/bazogusowelumuvusivomudij.pdf
    • https://s3.amazonaws.com/jolozidabi/what_transmission_does_husqvarna_use.pdf
    • http://tidomag.epizy.com/27050544946.pdf
    • https://s3.amazonaws.com/limewub/ankle_sprain_physical_therapy.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_off0000c1be.bin
05dce2d4b784ed541c8dca42cd8c1ec2d10a9520a7421620cf6825b2443598db
pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BE 5236 bytes
font_01_sfnt_off0000d371.bin
4725ec6786b8f7aaec6a37f71d796aec46c54a52b49c7b3bde44592f6c3ce96e
pdf-font-stream PDF embedded font (sfnt) at offset 0xD371 10016 bytes