Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e57cec651da82e…

MALICIOUS

PDF

69.5 KB Created: 2020-12-08 14:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 80d419e0f2d3d4fc6993802cd02e4a68 SHA-1: 4308c997a6f39e98a5c8a94089d81971b3d65fec SHA-256: 65e57cec651da82eaa45a2e14331381e40e61772210286d21d28af5d86432b76
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 0.9997

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://trafffi.ru/strik?utm_term=gwinnett+county+homestead+exemption PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376375/normal_5f9eff03b5974.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f8977bfe7851.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446759/normal_5fa08abc00c63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_5fad11a720070.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476140/normal_5fa937266b7ea.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e844cd1e280355d45049/t/5fc12aaafa04221c7149bbfb/1606494890420/taruxipakiruvibupogaxatub.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/adobe_photoshop_cc_2017_crack_only.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdc47a13a450babee0d2c/t/5fc56278f8cdb769c697ee3d/1606771321041/30718899241.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/wowimuwevapopumuneba.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/34526902629.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/dagopeg.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/369954269.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/vexilar_flx_28_open_water_transducer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fdb4ea7-9883-40e3-81cc-159758be2aa9/1544211141.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_off0000d2f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F0 5480 bytes
SHA-256: c74411bfafadd1398371eb4c12d934b4ea5eaa1e4fc47978f7df3615fd7b48ce
font_01_sfnt_off0000e591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE591 10476 bytes
SHA-256: c2dd0b3b16f4e4d46abab0ef74ad260bdcaafea0e056638bdb2c1ab565dcfcaa