Malicious PDF — malware analysis report

Static analysis result for SHA-256 514ed0deed193828…

MALICIOUS

PDF

81.7 KB Created: 2021-04-24 07:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e88c3a029bd7827ccc35d550cfc7ea81 SHA-1: 236d01f8ec514c1ae64414f4b3f2103be1c89bb4 SHA-256: 514ed0deed193828b0e392c61b9f8355f8cb67dd32ac34424f4d55ffc950f5be
96 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. While no scripts were explicitly extracted, the nature of PDF malware often involves embedded JavaScript for malicious actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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/strik?utm_term=weight+training+gym+routine+female
    • https://judexesadizit.weebly.com/uploads/1/3/0/7/130738912/kixiv-sewasifefefaro-ziditijonubizu.pdf
    • http://getyourcredit.info/nanud56fa1.pdf
    • http://edalovert.xyz/95077197200fxjnq.pdf
    • http://xizugef.medianewsonline.com/neumonia_tratamiento_farmacologico.pdf
    • https://cdn-cms.f-static.net/uploads/4380384/normal_5fd34b9d6c8ce.pdf
    • https://jujowaganul.weebly.com/uploads/1/3/0/8/130874338/dajumogeniruwob-ribob.pdf
    • http://vebuwovivulab.mygamesonline.org/marchantia_emarginata.pdf
    • https://cdn-cms.f-static.net/uploads/4384647/normal_6045e649b81aa.pdf
    • https://static.s123-cdn-static.com/uploads/4425533/normal_5ff2791a4f115.pdf
    • http://zotoxilob.getenjoyment.net/bovuwatata.pdf
    • http://tryraisins.club/puderogibodisoluy67a2.pdf
    • https://zuzivosojix.weebly.com/uploads/1/3/0/7/130775151/ritokexajejutumewo.pdf
    • https://cdn-cms.f-static.net/uploads/4447251/normal_6035f6993a7f6.pdf
    • http://supariwepexafat.mywebcommunity.org/aurelio_tello.pdf
    • http://kolagozisil.mywebcommunity.org/69910327388.pdf
    • https://wujuzuvetawi.weebly.com/uploads/1/3/1/3/131379059/2970208.pdf
    • https://cdn-cms.f-static.net/uploads/4418764/normal_5fdc00ea01ab6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://refusunono.onlinewebshop.net/69737180541.pdf
    • https://s3.amazonaws.com/xutomoxu/java_7._181.pdf
    • http://subogerilazelo.atwebpages.com/30753594333.pdf
    • https://s3.amazonaws.com/levumoduf/free_email_signature_template_photoshop.pdf
    • https://s3.amazonaws.com/kegubinefuda/apogee_and_perigee_in_satellite_communication.pdf
    • https://s3.amazonaws.com/nijosinizo/pokefawumanano.pdf
    • https://s3.amazonaws.com/jewizopukuni/grammar_exercises_for_class_10_with_answers.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_off0000f73a.bin
097713375e7258c8b2493ab0dc62744d84be2831de06c7013f4ab8bf6854eb07		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF73A 5000 bytes
font_01_sfnt_off00010823.bin
08e2cb12a66d173b2506985582c9a1e8f9367c886037c8b32092f23c1afac73b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10823 10224 bytes
font_02_sfnt_off00012b27.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B27 4324 bytes

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