Malicious PDF — malware analysis report

Static analysis result for SHA-256 6289f1b968582917…

MALICIOUS

PDF

36.5 KB Authoring application: SWFTools
MD5: e07777c6adbc57d1b36f0a86ee50bdd1 SHA-1: 8aa8068f2f442304f1106bac6520392c6f33cdd7 SHA-256: 6289f1b9685829174d779e192d5063de5c54095406ea0ccc8adb803976d1c307
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection and ML classifier also indicate maliciousness, specifically flagging it as 'Pdf.Phishing.TtraffRobotInstall'. The embedded URLs likely serve to redirect users to malicious sites or to distribute further payloads, potentially related to phishing or SEO spam.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://myelitestaffinggroup.com/uploads/1/3/0/4/130435850/1096497.pdf
    • http://armsandmindsrenovations.com/uploads/1/3/0/5/130541221/visibisemazak-xixolavanewekig-bumete.pdf
    • http://brecht.holyrood-drama.com/uploads/1/3/0/6/130604538/sekuladepev.pdf
    • http://ndavistech.weebly.com/uploads/1/3/0/5/130588845/1031448.pdf
    • http://hotorgrot.net/uploads/1/3/0/4/130489410/5137606.pdf
    • http://tedxquotes.com/uploads/1/3/0/4/130477890/satetije.pdf
    • http://alteredproductionsinstitute.org/uploads/1/3/0/5/130590457/walabesavabugi-vexin-tutilureb-sasaxazobekegix.pdf
    • http://stakemywallet.com/uploads/1/3/0/7/130738693/1453032.pdf
    • http://madefromair.info/uploads/1/3/0/5/130588256/dc9b327802c6.pdf
    • http://stkyrelchoir.com/uploads/1/3/0/3/130313786/5659101.pdf
    • http://ayanakyounglawllc.com/uploads/1/3/0/7/130740232/130740232.html#listening+activities+for+adults+british+council

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126e.bin
359f3d427a1447e60c20b97d5d9b05730ace9a3f1d9ab681b5b83ddf34f9ae50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126E 7568 bytes

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