Malicious PDF — malware analysis report

Static analysis result for SHA-256 9506aaccc4727805…

MALICIOUS

PDF

55.1 KB Authoring application: Pdftk
MD5: 77d543eaf09bb3d25a96e10a46815e84 SHA-1: 6c11fc52a9ff53c756f3a9a578cec0ceb8b715d4 SHA-256: 9506aaccc4727805df3a847cf91daaef99c68c267e28ad8111f9aab966fc8bae
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm designed to distribute malicious content. ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The document body appears to be corrupted or irrelevant, but the presence of numerous external links is the primary indicator of malicious activity.

Heuristics 4

  • 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
  • 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
  • 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://networkinginhighheels.com/uploads/1/3/0/5/130543333/f18dc8cc6f24ab.pdf
    • http://norwichmonument.com/uploads/1/3/0/4/130476628/1468616.pdf
    • http://brite-technology.net/uploads/1/3/0/6/130639386/486641.pdf
    • http://sisstar289.com/uploads/1/3/0/6/130621516/zusodomowipiwowox.pdf
    • http://fr-technology.host/uploads/1/3/0/3/130323568/wujekabu-kazem-zikego.pdf
    • http://myriadpharmacy.com/uploads/1/3/0/6/130620618/1170136.pdf
    • http://blubloggs.com/uploads/1/3/0/2/130291908/9032626.pdf
    • http://northidahostrainedhorses.com/uploads/1/3/0/2/130287456/lamufi.pdf
    • http://uintahonlinek8.com/uploads/1/3/0/5/130588584/13f5fa52533.pdf
    • http://dataanalystsusergroup.co.uk/uploads/1/3/0/6/130604166/xupaxug.pdf
    • http://messiniako-catering.com/uploads/1/3/0/7/130739593/c084d.pdf
    • http://ronsokolbooks.com/uploads/1/3/0/2/130270913/lekivojuf.pdf
    • http://carpetcleancary.com/uploads/1/3/0/5/130588872/130588872.html#buku+bidayatul+mujtahid+terjemahan

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001371.bin
48558c6edeb2a7789e9988dd29d8215c9f8bddadd5bf86b97383153f3cde6f4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1371 9092 bytes
font_01_sfnt_off000088ad.bin
eab3df8512d4a19e161be27f6bbba1e04e726124bba57c05d990dd86c8e48e1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88AD 19072 bytes

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