Malicious PDF — malware analysis report

Static analysis result for SHA-256 85b93a4320bea8d0…

MALICIOUS

PDF

41.3 KB Authoring application: OpenOffice Draw
MD5: b88403aa54d1a98fa43fb73aa26bd5f1 SHA-1: b54c4d3c7f453a75df4ed1ba7ea473c0c5dc0ca8 SHA-256: 85b93a4320bea8d0e8d1ab8a4128c17294a60bd0846528a50ade53f1cfbe3d1f
102 Risk Score

Malware Insights

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

The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, despite being malformed, contains references to educational materials and multiple URLs that likely serve as download locations for malicious payloads. The presence of embedded URLs and the 'download button' heuristic further support a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://airinbudiman.com/uploads/1/3/0/5/130551144/kofavelanijimudi.pdf
    • http://mrboldt.com/uploads/1/3/0/7/130739463/5696266.pdf
    • http://natronacountyclassifiedprofessionalsassociation.org/uploads/1/3/0/5/130545382/0fcfda50b.pdf
    • http://mynorahaze.com/uploads/1/3/0/8/130814083/dowakumamanom.pdf
    • http://lipstickliberalnetwork.net/uploads/1/3/0/5/130539049/katotibunagadidezi.pdf
    • http://meshayla.com/uploads/1/3/0/7/130775961/130775961.html#solved+mcqs+of+accounting+and+finance+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010dc.bin
1127745f8e701c03b780f47bebbfbe792861a329df0148f52950ddb2b972beeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC 8340 bytes

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