Malicious PDF — malware analysis report

Static analysis result for SHA-256 a78e259594880403…

MALICIOUS

PDF

38.6 KB Authoring application: Poppler-utils
MD5: 3593fd05382906d75765aa6eead1d7a0 SHA-1: e10ca73bbcf3bcfb1f77dbad57688042f88f2ae4 SHA-256: a78e259594880403f437cc5783827b75c1bf156cb8ec4bce4749a6b71ab96734
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The file is a PDF document that contains embedded URLs pointing to other PDF files. The document body text, though partially obfuscated, suggests a lure related to job interviews. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://hospitalequipment4u.com/uploads/1/3/0/4/130478163/5499054.pdf
    • http://redteam3.net/uploads/1/3/0/6/130622023/27e71a4aa288b.pdf
    • http://sethgangwer.com/uploads/1/3/0/5/130543771/jerinojew.pdf
    • http://onlineventures101.com/uploads/1/3/0/2/130291485/bigoworesalepal-jikigenigij.pdf
    • http://pelledolce-scottsdale.com/uploads/1/3/0/5/130545173/penajux-kidila-situlis-jigagebalewa.pdf
    • http://nuobeijinghotel-chinese.devsite-1.com/uploads/1/3/0/6/130621455/130621455.html#english+conversation+job+interview+pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000010c2.bin
9a4e1bde0433e07427b28399c0a49f10b3d8c498c63ee95fe38eaaa4bbeeadb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2 8340 bytes
font_01_sfnt_off00005ba9.bin
1b0b9ccafa3a8d4187e86757028d03de598065db96186c0e11ce259314def278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA9 2684 bytes

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