Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eddaab1085cf606…

MALICIOUS

PDF

94.3 KB Created: 2021-04-23 08:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 23e6823f752d7a224e5b59b9dc8cfc93 SHA-1: 18c452b1710facc110ae1b65c8a3bc0040d6dfb5 SHA-256: 0eddaab1085cf60623753becf28d52e6fc203f1f930a6658cfe46ee5a762cc89
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL. The ML classifier and ClamAV detection strongly indicate maliciousness, classifying it as a phishing or trojan PDF. The document body, though heavily obfuscated, contains text related to 'Ruger p95 accessory rail', likely a lure to encourage interaction with the embedded URL.

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://pelibifir.ru/strik?utm_term=ruger+p95+accessory+rail
    • https://cdn-cms.f-static.net/uploads/4369663/normal_6035a18c47130.pdf
    • https://romugazasemagop.weebly.com/uploads/1/3/4/8/134897733/xiwesu.pdf
    • https://cdn.sqhk.co/letarezetap/2fjdugc/candomble_religion.pdf
    • https://cdn.sqhk.co/vipikunowi/eQURgda/zilaja.pdf
    • https://xoregofejaba.weebly.com/uploads/1/3/4/6/134651656/579b1.pdf
    • https://wubedalenab.weebly.com/uploads/1/3/1/3/131383767/xekuwifibo.pdf
    • https://static.s123-cdn-static.com/uploads/4489730/normal_5ff9107dc8319.pdf
    • http://mafejaruvoje.sportsontheweb.net/todos_los_libros_apocrifos.pdf
    • http://kulirefibew.22web.org/spatial_analysis_book.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xabulupemoze.rf.gd/togipafe.pdf
    • https://s3.amazonaws.com/mujevubutukoxu/zomolelomagezoleditoxegu.pdf
    • http://jedekikubo.epizy.com/trevor_hastie_introduction_to_statistical_learning.pdf
    • http://sakogabutal.onlinewebshop.net/bupolu.pdf
    • http://kafotafuvodalix.onlinewebshop.net/toro_ccr_2000_model_38180_parts.pdf
    • https://s3.amazonaws.com/tigovatolis/16863433981.pdf
    • https://s3.amazonaws.com/lebejos/hague_water_softener_warranty.pdf
    • http://xojakejib.epizy.com/commercial_property_investment_guide.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_off00013270.bin
e45b24e2a2ada803bbc10ed0f26e3824d0f2cd812da5c4e3bbea3653d33b7375		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13270 5492 bytes
font_01_sfnt_off00014544.bin
52f8ba34bb34299ccafd2ce8daba62ee926dcef85894a8622837661a22efd6af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14544 11984 bytes

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