Malicious PDF — malware analysis report

Static analysis result for SHA-256 3249d628c3e1ba18…

MALICIOUS

PDF

35.6 KB Authoring application: GIMP
MD5: d23d625ce5eacbd3ab10c4c412aa1b59 SHA-1: ee7abd2898c7d8fc1ce16ed1b0dc1293adfa83cb SHA-256: 3249d628c3e1ba1830247928ff11894e15c079bd687622c6f529a49fbeeda98d
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' further supports a malicious intent, likely related to phishing or traffic redirection.

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://openwalnutcreek.org/uploads/1/3/0/2/130289649/verapafazu_wawanab_jatukajesosir_mavoji.pdf
    • http://topnamsausage.com/uploads/1/3/0/5/130544447/4554382.pdf
    • http://marianosilva.net/uploads/1/3/0/9/130969997/4059193.pdf
    • http://www.teamfaithnation.com/uploads/1/3/0/3/130323761/46fd8cb50e.pdf
    • http://annaandthecfmonster.com/uploads/1/3/0/7/130776331/suvum-gutuzizaleke.pdf
    • http://jymstringer.com/uploads/1/3/0/6/130620627/4b2176b7d28f.pdf
    • http://channelthestar.com/uploads/1/3/0/3/130324340/midame-malidepe.pdf
    • http://midwestboatmotor.com/uploads/1/3/0/9/130969608/marubijejezidun.pdf
    • http://www.srphotodesign.com/uploads/1/3/0/2/130289690/vopizivabixem.pdf
    • http://christinemadeline.com/uploads/1/3/0/5/130588796/zagukutu_radobesuv.pdf
    • http://14centsaminute.com/uploads/1/3/0/2/130289461/2939399.pdf
    • http://iknowschmidt.com/uploads/1/3/0/5/130588944/dubazezuwil.pdf
    • http://lotusessentials11.com/uploads/1/3/0/7/130775505/misonoruro.pdf
    • http://curatedchoice.co/uploads/1/3/0/5/130541077/midar_salagisagirimo_devaxopu.pdf
    • http://www.daintel.net/uploads/1/3/0/2/130287502/zivujew-vafewojoj-mitogilevuwu.pdf
    • http://rareplantspecies.com/uploads/1/3/0/4/130436096/3816614.pdf
    • http://matthewodempsey.com/uploads/1/3/0/6/130639530/7328147.pdf
    • http://movoaden.org/uploads/1/3/0/4/130488286/1160314.pdf
    • http://hrecny.org/uploads/1/3/0/2/130291485/xevimikujiru.pdf
    • http://marijuanalawvt.net/uploads/1/3/0/7/130775893/4655532.pdf
    • http://cldqe.bpmtc.com/uploads/1/3/0/2/130271045/130271045.html#aegon+iterm+plus+brochure

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c41.bin
59f8a2e2eb094cd392636233b91d8a5548b11f7932775e2b2e0423ce7bf28d52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C41 7684 bytes

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