Malicious PDF — malware analysis report

Static analysis result for SHA-256 fddd72fa813a6638…

MALICIOUS

PDF

73.3 KB Created: 2021-03-22 05:45:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9daedb91415ec7f5c1425eba79169fac SHA-1: 585078fcfee7b36232bcc0c62f00a2651ffe4704 SHA-256: fddd72fa813a663874375ed320a9338bd012de593a9997db4f0a4e5fbb5bb242
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/award?keyword=erico+cadweld+molds+pdf PDF link annotation
    • http://kuvobutigok.iblogger.org/molecular_mechanism_of_synaptic_transmission.pdfIn PDF document text
    • http://oneitshop.pro/fafubidanuxevujozeagnca.pdfIn PDF document text
    • http://fesebenawasoz.iblogger.org/41906861732.pdfIn PDF document text
    • http://navalny.design/bizejewunugimilovcvzq5.pdfIn PDF document text
    • http://indital.space/pozekot4pow.pdfIn PDF document text
    • http://salonhq.xyz/18789213431ipvrx.pdfIn PDF document text
    • http://francobusiness.com/mass_driver_attitudinal_retraining_course42hev.pdfIn PDF document text
    • http://golulim.iblogger.org/11706421715.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tenezozujilajiw.rf.gd/47415518135.pdfIn PDF document text
    • http://jenetaponolinev.rf.gd/diliduderiniwa.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/30452927119.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/73471167091.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/cavani_jacket_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zatasipezeg/6840832437.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/xerogek.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/paladin_spell_list_5e_wikidot.pdfIn PDF document text
    • http://xumuturil.epizy.com/how_to_embed_code_on_wix.pdfIn PDF document text
    • http://jakokukomi.epizy.com/19099321359.pdfIn PDF document text
    • http://dasabenanej.epizy.com/wapufigalifuzividi.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_off0000e19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE19E 5352 bytes
SHA-256: a14301494acd5e9b9f6755ca67c4a254ba9a8a5203b8bd5f26b8652d69f829d6
font_01_sfnt_off0000f3d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D2 10720 bytes
SHA-256: 8f0ec8d3af138383558dfe5b26f24b6a66d924cfe5027f2da53806edc9bf08ff

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