Malicious PDF — malware analysis report

Static analysis result for SHA-256 f50e7860232f8da2…

MALICIOUS

PDF

48.8 KB Authoring application: Nitro PDF
MD5: 89456c372b7f46d6a48ae17778dacf1c SHA-1: 8c800831f8636b6cb1f0d00ada8ca6efb64daad2 SHA-256: f50e7860232f8da218548ff90edd26a3321b3347e2d12a06d257bf1d8bbede46
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF documents, indicating a link farm or redirection scheme. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic-driving intent. The heuristic 'PDF_SEO_LINK_FARM' confirms the presence of numerous external links, with 'jimmyplease.com' being the dominant host. No scripts were extracted from this sample.

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://jimmyplease.com/uploads/1/3/0/5/130545098/bufikemodadewa_nuzexevamoxured_tefolujej.pdf
    • http://mta-sts.mx.cbisociety.org/uploads/1/3/0/3/130313150/lanoliw_xifevudapal.pdf
    • http://srilankangems.com/uploads/1/3/0/4/130435877/b9cb85c.pdf
    • http://vudumedia.net/uploads/1/3/0/6/130639153/tuwebe-kotilu.pdf
    • http://chartspanemployer.com/uploads/1/3/0/3/130313192/waxijoja.pdf
    • http://edspeakers.com/uploads/1/3/0/6/130605204/dazozogad-leravozevoxamud-vuvobuxuzusup-korobixujinuti.pdf
    • http://rosepunch.com/uploads/1/3/0/6/130620614/guninoxik.pdf
    • http://moderncountrydoctor.ca/uploads/1/3/0/7/130739336/sodafuvatobogovujod.pdf
    • http://ninanolan.net/uploads/1/3/0/6/130605403/8672793.pdf
    • http://www.mrskendallsclass.com/uploads/1/3/0/6/130604688/3893f07.pdf
    • http://easyclicktoearn.com/uploads/1/3/0/4/130488311/6f806df8ca.pdf
    • http://decentralizedcoin.org/uploads/1/3/0/2/130288639/2346534.pdf
    • http://itssimplycrystal.com/uploads/1/3/0/7/130739081/roterokesuvugog.pdf
    • http://adamrichardsteachingportfolio.com/uploads/1/3/0/4/130436080/nazusadu_vebilimizaloso.pdf
    • http://paleofeest.com/uploads/1/3/0/2/130288798/fezovijaropujel_lotapiluw_faripijo.pdf
    • http://www.parkweststaffing.com/uploads/1/3/0/5/130588437/f58437a2f6c96.pdf
    • http://ibnem.slpny.com/uploads/1/3/0/6/130604078/130604078.html#affairscloud+september+18+2018

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aaf.bin
32b54217619f9438721b423dc2f4f4da0f78781b0811ea49af2be6b0310ecf56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAF 16164 bytes
font_01_sfnt_off00006283.bin
2b10f6f7c96c1995a8c8c23a013ed4c9f2ace37dbcb9f99377c81740029a9623		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6283 8252 bytes

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