Malicious PDF — malware analysis report

Static analysis result for SHA-256 f45831ea69942f65…

MALICIOUS

PDF

44.8 KB Authoring application: OpenOffice.org
MD5: 69b4b689c03a6ee7bbd550d9a089d503 SHA-1: 3f1f239b0d15d6977fd5fbcf1e47bfe3ddcf0dca SHA-256: f45831ea69942f65c6add14d45bff0d47117729ea14290ea9ed816395ddbe3fe
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or redirection strategy. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The document body is heavily obfuscated and does not provide clear textual lures.

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://kylielyall.com/uploads/1/3/0/5/130541688/moburodufoliborasija.pdf
    • http://scandinavian-relocationgroup.com/uploads/1/3/0/7/130738948/5994090.pdf
    • http://events.carolinafactoryoutlet.com/uploads/1/3/0/8/130874610/mejojobaw_kuliranageduj.pdf
    • http://retiredmind.net/uploads/1/3/0/6/130620803/6adbf.pdf
    • http://pitchtreemetalworks.com/uploads/1/3/0/5/130589114/kunugumamixubul.pdf
    • http://prawer.de/uploads/1/3/0/5/130543467/9e65d869.pdf
    • http://voraginedeescritores.com/uploads/1/3/0/4/130483402/7685407.pdf
    • http://barkwayboys.com/uploads/1/3/0/6/130621084/2843238.pdf
    • http://mail.aloenottingham.com/uploads/1/3/0/6/130604666/sinalebubaj-buwogezuz-wubimebudijapi.pdf
    • http://tammyframptonrealty.ca/uploads/1/3/0/6/130621965/1a7af3e5034de59.pdf
    • http://nariknektalov.com/uploads/1/3/0/4/130476572/2929f7779ae5c61.pdf
    • http://copefund.org/uploads/1/3/0/6/130603988/gebajefogixi.pdf
    • http://jessechurchhorseshoeing.com/uploads/1/3/0/6/130605244/badurukunelejifi.pdf
    • http://xocobean.com/uploads/1/3/0/2/130270863/130270863.html#fx+forward+contract+definition

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005396.bin
8828ae59292c1c2c5eccace91700b2115a2ea7e7298dba97a57bdcb169197396		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5396 9004 bytes

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