Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbd20658b6195ea3…

MALICIOUS

PDF

81.4 KB Created: 2021-02-05 16:46:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: b1e81e508e1672cac8f45e15ccc862cf SHA-1: ecd3d3d0bcb83561abc992beff80fa391c6d5637 SHA-256: dbd20658b6195ea38ac1601f912520c9e3161cdcb1b548ab8d252d05bdd8608c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://leonvi.ru/wb?keyword=lol%20skin%20mod%20pro', suggesting a phishing or redirection attempt. The PDF structure and embedded URLs are consistent with common phishing lures designed to trick users into visiting malicious sites.

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://leonvi.ru/wb?keyword=lol%20skin%20mod%20pro PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473963/normal_5ff428db00406.pdfIn PDF document text
    • http://hookup157.online/bibawo_by_eddy_kenzo_mp4wos9r.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417206/normal_5fc6a08179f1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445735/normal_5fda8e3c191a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482230/normal_5fc6d5b4aa577.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489244/normal_5fc890302099c.pdfIn PDF document text
    • http://evilcheats.fun/flushed_away_google_drivez4u3a.pdfIn PDF document text
    • http://usersdeviceprotectionservice.site/yl_38_datasheetq4z05.pdfIn PDF document text
    • http://parhelifrl.space/saxazuselufobizoxup0cq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407100/normal_600676f6c346a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470982/normal_5ff65ce029b65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469827/normal_6018da39a8e84.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/16738372591.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/sql_formatter_sql.pdfIn PDF document text
    • http://bogibil.rf.gd/92478452939.pdfIn PDF document text
    • http://vepilezora.epizy.com/missguided_promo_code_ireland.pdfIn PDF document text
    • http://koxogulu.rf.gd/41700074812.pdfIn PDF document text
    • http://jolasesiv.epizy.com/tonixoxazuduvufebukeponis.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/gta_3_cheat_code_for_android_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/jazeruxifexinukitibivos.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB95 4900 bytes
SHA-256: 4e252de9787d797a26dfdebe67b2af70ce64a80584924889df65931544ce0c98
font_01_sfnt_off0000fc23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC23 1800 bytes
SHA-256: e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
font_02_sfnt_off000104b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B1 22596 bytes
SHA-256: 047742fd231ebaf1e093526adf32396d6f7177ce16ce127803f8a09b8853e191

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