Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee195df4da732767…

MALICIOUS

PDF

41.0 KB Authoring application: OpenOffice.org
MD5: e45b409c85dbeb1e1c11bf2e99c035d7 SHA-1: 487d4c47e7290bcdf4ea0dec5ba55d4638787107 SHA-256: ee195df4da732767a4f4e0f404f89eb9668bb119d913f0e681b786e69ead3466
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or redirection mechanism designed to lead users to potentially malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. No scripts were extracted from this sample.

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://stunningsphynxkitten.com/uploads/1/3/0/8/130814586/0bf03877d5.pdf
    • http://rocky.berryoptical.com/uploads/1/3/0/2/130271094/jadiwutotowefu.pdf
    • http://thegrilllab.com/uploads/1/3/0/8/130874286/gager.pdf
    • http://sundancedebtpartners.com/uploads/1/3/0/7/130740591/dexobuvobuv.pdf
    • http://retrocrawl.net/uploads/1/3/0/7/130740146/puropadevukuz_lexofufek.pdf
    • http://www.hireuswriters.com/uploads/1/3/0/5/130590558/3513414.pdf
    • http://smbhire.com/uploads/1/3/0/8/130814492/36a74ed6db98f.pdf
    • http://thewellnessinstitute.dadgifts.us/uploads/1/3/0/7/130739349/tetarogujobuvo-keladu.pdf
    • http://runlikepro.com/uploads/1/3/0/7/130740053/9463162.pdf
    • http://accuplus-parkour.com/uploads/1/3/0/4/130436159/d0b8567caa.pdf
    • http://www.seattlescores.org/uploads/1/3/0/9/130969243/3564337.pdf
    • http://chrisburnettvoiceactor.net/uploads/1/3/0/2/130289589/xomunaruvuta_zotezivopibag.pdf
    • http://host201.carmichaelnl.com/uploads/1/3/0/4/130436285/130436285.html#journal+el+watan+algerie+aujourd%27hui
    • http://smbhire.com/upload

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea2.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA2 16036 bytes
font_01_sfnt_off0000462e.bin
4ece3ab0ae96ebd76aa0daeb33e46afb16d0a7fd50ef4480eaa00c10da2c4f5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x462E 9660 bytes

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