Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb3cee625f57b11d…

MALICIOUS

PDF

79.3 KB Created: 2021-03-10 23:33:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e834cd254ffcfb9292ca3737dce0279 SHA-1: 68cb1e7fc59b3654c48994a51aa881017e1447a2 SHA-256: eb3cee625f57b11d93bd7e5526db6117774109caa1779f3c4c46aeec0aa07b9d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a malicious site or download further malware. The document body, though heavily obfuscated, contains text related to 'counter strike 1.6 weapons', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/123?utm_term=counter+strike+1.+6+weapons
    • https://cdn-cms.f-static.net/uploads/4485810/normal_602e76f97a7fe.pdf
    • http://gopusoduj.mygamesonline.org/76902201941.pdf
    • http://vurovolapoza.mygamesonline.org/cobra_29_lx_max_manual.pdf
    • https://xuzizalebu.weebly.com/uploads/1/3/4/7/134772475/2809ac2.pdf
    • https://cdn.sqhk.co/murajefovel/Sjahhaa/63564922506.pdf
    • https://cdn.sqhk.co/jenireni/MVtiijg/darkness_survival_recipes.pdf
    • https://satewode.weebly.com/uploads/1/3/1/4/131407014/a29d2eb109.pdf
    • http://fumatiw.mypressonline.com/10881761296.pdf
    • https://static.s123-cdn-static.com/uploads/4456671/normal_600100ed15401.pdf
    • https://static.s123-cdn-static.com/uploads/4461219/normal_600100db50746.pdf
    • http://sopesukenapad.scienceontheweb.net/how_to_set_answering_machine_on_panasonic_dect_6.0_plus.pdf
    • http://ninuxalezopo.getenjoyment.net/82572336929.pdf
    • https://fadegedisumobe.weebly.com/uploads/1/3/5/9/135992854/tugovupibero.pdf
    • https://wimekigulaz.weebly.com/uploads/1/3/1/1/131163744/fikimebidotet_likazotil_modawotufuwin_pinave.pdf
    • https://static.s123-cdn-static.com/uploads/4365642/normal_5fcf4a03531c1.pdf
    • http://vizazovabula.mywebcommunity.org/los_tres_jovenes_hebreos_iece.pdf
    • https://cdn.sqhk.co/juduxijumijo/hzhia6c/52782162780.pdf
    • https://static.s123-cdn-static.com/uploads/4416490/normal_5fc7b72432029.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://973697ad-ffa4-4f9d-85cd-0c9d1ea039ee.filesusr.com/ugd/5f5755_b90805202191487f86b6f6651874b2e0.pdf?index=true
    • http://xologikaju.atwebpages.com/knowledge_of_self_nation_of_islam.pdf
    • https://f26e6bca-ce10-4524-9610-ed5ef7c8d48b.filesusr.com/ugd/ac8c68_4f77a141677a428ea98dce8da0126645.pdf?index=true
    • http://lutepotazor.onlinewebshop.net/12051054600.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f027.bin
86d98a49576a842ff9e3f10e52304b47b0a2528c058b0e7150aba2785805fc78		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF027 5080 bytes
font_01_sfnt_off00010195.bin
a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10195 1800 bytes
font_02_sfnt_off00010a22.bin
f265c5aef66e21162fd75238957d71307bae57a8e5749ef4eb2b35eab188423a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A22 10544 bytes

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