Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a5aa8c52d00afe…

MALICIOUS

PDF

50.3 KB Authoring application: Poppler-utils
MD5: 63914a8e776d29bcbf60a06c827628d2 SHA-1: a242f3700f709803410011c0bec2ae3ceb3fbb04 SHA-256: 01a5aa8c52d00afe14d7ba4455d8257165d10dcbd8f796c399a2d7742412bb08
152 Risk Score

Malware Insights

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

The PDF contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. ClamAV also detected this file as Pdf.Phishing.TtraffRobotInstall-7605656-0, suggesting a phishing or malicious distribution intent. The embedded URLs are likely used to redirect users to malicious sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://www.jamessherwoodbooks.com/uploads/1/3/0/7/130739904/dovas.pdf
    • http://troyandray.com/uploads/1/3/0/6/130604556/zinikezajadiwofetaz.pdf
    • http://firstway.ca/uploads/1/3/0/7/130775907/pofakelal_nomamepopo_zolesejo.pdf
    • http://project-27.net/uploads/1/3/0/4/130489175/jumexokabep_ludazidaj_mefobotorinaj_xikalax.pdf
    • http://mlfickcourtlandkindergarten.com/uploads/1/3/0/6/130621441/9882913.pdf
    • http://empswy.com/uploads/1/3/0/6/130604415/483354.pdf
    • http://shipfree.club/uploads/1/3/0/3/130324351/jeninixazoki-podonozira-dibetuj-jufizezewi.pdf
    • http://aniaoliviapr.com/uploads/1/3/0/6/130604257/bizalozid-sixode.pdf
    • http://pigoal.com/uploads/1/3/0/7/130739928/8653fbd6.pdf
    • http://waterfrontexecutiverentals.com/uploads/1/3/0/8/130813420/vokuwupe.pdf
    • http://tuitionhotsauce.com/uploads/1/3/0/6/130605175/130605175.html#elchuri+ayurvedic+books+pdf+in+telugu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e66.bin
6902d1d97dbdfaae756943deeace64e939af450e427a871411455989fe93f696		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E66 8348 bytes

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