Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e5119575d7c6b85…

MALICIOUS

PDF

81.3 KB Created: 2021-03-18 15:36:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68409aa402415c39d983cd804c8ce94b SHA-1: 45f11266c693918f27834a49601c2153d05385a0 SHA-256: 6e5119575d7c6b85eb91c65a2dad180e58dddf1c91e2e11b9108becd800c1327
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing or malware delivery page. The document body, though heavily obfuscated, appears to be a malformed attempt to mimic search result content, further supporting a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/strik?utm_term=why+are+my+clothes+not+air+drying
    • https://jadomuvifaxa.weebly.com/uploads/1/3/5/9/135960305/nomezagorap.pdf
    • http://fomigiv.mypressonline.com/29181842215.pdf
    • https://cdn-cms.f-static.net/uploads/4421776/normal_601de875e8095.pdf
    • https://cdn-cms.f-static.net/uploads/4403960/normal_601677f11b64f.pdf
    • https://tazesudi.weebly.com/uploads/1/3/0/9/130969012/4727435.pdf
    • http://mapugukabazewu.scienceontheweb.net/80132230181.pdf
    • http://befotuke.mywebcommunity.org/student_information_sheet_google_form.pdf
    • https://cdn-cms.f-static.net/uploads/4379722/normal_5fd1e02ddcbd6.pdf
    • https://static.s123-cdn-static.com/uploads/4483365/normal_5fcef9bb44c96.pdf
    • https://static.s123-cdn-static.com/uploads/4366327/normal_5fdfb3e8665bd.pdf
    • https://cdn-cms.f-static.net/uploads/4381551/normal_5fd1f3151ec5c.pdf
    • https://cdn-cms.f-static.net/uploads/4469365/normal_60520f0bd1b76.pdf
    • https://rukururage.weebly.com/uploads/1/3/0/9/130968917/gipofatevixofu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pugomonapoxuxe/kikanobumerolek.pdf
    • https://s3.amazonaws.com/sajatofubote/types_of_amnesia.pdf
    • https://s3.amazonaws.com/dorulusof/satigezaluvopalusaji.pdf
    • https://uploads.strikinglycdn.com/files/5c62b4f8-258c-482d-bcb5-f4f73b067e03/que_es_un_asociado_en_enfermeria.pdf
    • http://mizetum.onlinewebshop.net/24890948327.pdf
    • https://s3.amazonaws.com/vibuvomomuv/gifulemesogegatifir.pdf
    • https://uploads.strikinglycdn.com/files/d74c84a9-4a0a-4a2a-8f95-4beed91dfa5e/34198579599.pdf
    • https://s3.amazonaws.com/jokotaziweluge/power_air_fryer_elite_gla-716_parts.pdf
    • https://uploads.strikinglycdn.com/files/abe3c154-80f4-4eb0-9736-fc898345976c/guvakorevitipijamir.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_off00010007.bin
de4edf38243c7e0a0a5ab44cfe532c1e3825b24c8ef52d40bfc8397f05436c5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10007 5468 bytes
font_01_sfnt_off00011288.bin
2836b12033fdaa0895fc35b26123ad92311cd0a1666956e5aa6f940b9d719445		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11288 11052 bytes

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