Malicious PDF — malware analysis report

Static analysis result for SHA-256 c822503db0ab763e…

MALICIOUS

PDF

58.6 KB Created: 2021-03-31 18:07:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bd4f120d8c1789acc9f200ec099a05c SHA-1: e52ecdc303940911ea352d04e6eb651d7f84d89a SHA-256: c822503db0ab763ea488de7b74b9109b674e0978bb623785e289f18c4bb2ceb7
94 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI are indicative of a social engineering attack, likely a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9529

Heuristics 3

  • 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
  • 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://bologen.ru/award?keyword=complex+numbers+pdf+class+11+commerce
    • http://dorututulawes.iblogger.org/36591014218.pdf
    • http://razagewodun.iblogger.org/puvarumedoxoz.pdf
    • https://cdn-cms.f-static.net/uploads/4453142/normal_60599f928eeac.pdf
    • https://cdn-cms.f-static.net/uploads/4384159/normal_60333e15804b1.pdf
    • https://static.s123-cdn-static.com/uploads/4408997/normal_5ff92d712e9fe.pdf
    • http://ganuzariture.22web.org/jeffrey_archer_heads_you_win.pdf
    • http://gazizelasama.getenjoyment.net/61741258241.pdf
    • http://tuwasukam.getenjoyment.net/dilifalefiw.pdf
    • https://static.s123-cdn-static.com/uploads/4368489/normal_5fc5fa8ce30e9.pdf
    • https://cdn-cms.f-static.net/uploads/4384828/normal_604218ef14ae1.pdf
    • https://cdn-cms.f-static.net/uploads/4368225/normal_604f2de6a42e5.pdf
    • https://cdn-cms.f-static.net/uploads/4489848/normal_602ae78400da4.pdf
    • http://migasoloraluxuj.scienceontheweb.net/latetifi.pdf
    • http://lenuvivureropi.scienceontheweb.net/49363105944.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_ee8bdefaedb149c8a780a4835510ac1e.pdf?index=true
    • http://gewofudi.rf.gd/unanswered_prayers_lyrics_and_chords.pdf
    • https://ce5d016b-e5fb-4004-af8f-35f61b829e22.filesusr.com/ugd/d7d7f8_89def0ff42cd4aaeab46e004d8b03c97.pdf?index=true
    • http://vuzelupuz.rf.gd/38357635209.pdf
    • https://42190e62-4dca-482d-a077-ae7b222d7779.filesusr.com/ugd/b91392_e221449e60af44e3b27f37cab7013554.pdf?index=true
    • https://011f98f8-b45f-4578-a2fd-466b530f7845.filesusr.com/ugd/74e905_5253974e26034f529ffc2d21e5432412.pdf?index=true
    • http://fejixusal.epizy.com/94378134858.pdf
    • http://wareguw.atwebpages.com/sedavizarumefubij.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc69.bin
5829936ecab357652d46460455b07a27a73082f1544140cd4ec0ec6dd1c8519b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC69 5464 bytes

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