Malicious PDF — malware analysis report

Static analysis result for SHA-256 febe6ec5fb648f54…

MALICIOUS

PDF

40.8 KB Authoring application: Pdftk
MD5: 69c931dd5c6bcd07ad527e32600015e1 SHA-1: e0b51661c1ea6ee06fa6492ba285093cd9cfc693 SHA-256: febe6ec5fb648f54172ca80576f56538cd50ff29f0d5bb5916b3e3d9290ab8ab
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links pointing to external PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection further supports its malicious nature, classifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'.

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://craigweflen.com/uploads/1/3/0/6/130620927/sofibamikofokida.pdf
    • http://www.braidmama.com/uploads/1/3/0/6/130621523/6798f8476c550.pdf
    • http://pulsarconsultingmanaging.com/uploads/1/3/0/5/130551558/mefumiv-sawegamibupema-bawusabexutid-rapavovut.pdf
    • http://jaiku.net/uploads/1/3/0/6/130639228/nobadobele_betonalafidaju.pdf
    • http://moretoexplore.co/uploads/1/3/0/6/130604904/perozubaj-dulalas.pdf
    • http://cloud-six.com/uploads/1/3/0/5/130540208/be714c97e.pdf
    • http://oldtowndoggiewash.com/uploads/1/3/0/6/130603847/dinugijoruw.pdf
    • http://lakeviewbuchanan.com/uploads/1/3/0/7/130740235/7937161.pdf
    • http://mollybernard.com/uploads/1/3/0/3/130379356/rotasasimusut.pdf
    • http://nbscgospelfest.org/uploads/1/3/0/5/130541327/wawuruza.pdf
    • http://cartercarpio.com/uploads/1/3/0/8/130814235/8cb272.pdf
    • http://justleafwell.com/uploads/1/3/0/5/130590673/2099980.pdf
    • http://redlinexcavating.com/uploads/1/3/0/7/130740265/galogabupo_jupipe.pdf
    • http://qggp4l.bdgct.com/uploads/1/3/0/6/130639242/130639242.html#blue+anodized+titanium

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000474e.bin
e615149ae3d166199f7f5d863dcea1af9fff2110252e805492e8838f62269096		 pdf-font-stream PDF embedded font (sfnt) at offset 0x474E 7892 bytes

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