Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c4e4f1f298d7f7…

MALICIOUS

PDF

45.9 KB Authoring application: PDFedit
MD5: 8012975c5a7609879df5af3ca45dfa9b SHA-1: ecafbedbc52472964d40f3e25e7cc7bc915e598c SHA-256: e9c4e4f1f298d7f7df4ad8e378ff3d3f2f1fd9eec6674dab6869f46cf9cd4b30
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 URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample, so the primary attack vector appears to be the exploitation of user interaction with the embedded links.

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://hostmaster.townsendcars.co.uk/uploads/1/3/0/5/130551303/d61de51540ea.pdf
    • http://simplyessentiallife.com/uploads/1/3/0/7/130775284/1236557.pdf
    • http://nashmortgage.com/uploads/1/3/0/2/130271159/c60ee5.pdf
    • http://comdatacpsko.com/uploads/1/3/0/6/130621394/sizop_tagifivamikexo_winowutonav.pdf
    • http://njpinebarrens.net/uploads/1/3/0/5/130588517/nevikur.pdf
    • http://acupuncture4pets.ca/uploads/1/3/0/2/130270918/xezorerumu.pdf
    • http://nihaosky.com/uploads/1/3/0/6/130604305/104d8cc.pdf
    • http://mm93.net/uploads/1/3/0/3/130323423/b3586d.pdf
    • http://escaperoomcville.com/uploads/1/3/0/2/130288514/2550328.pdf
    • http://mta-sts.mx.dtgovsolutions.com/uploads/1/3/0/9/130969354/sezogujixerafobad.pdf
    • http://www.meheraanddamon.com/uploads/1/3/0/6/130603975/guxinus_bavado.pdf
    • http://jplonski.com/uploads/1/3/0/8/130814245/e98d3d93fb7e.pdf
    • http://pubmouth.com/uploads/1/3/0/3/130324270/dufimukegi-zexajat.pdf
    • http://eclipsewomenscenter.com/uploads/1/3/0/8/130814469/ximaverev_naturunivikiziw_gepiro.pdf
    • http://paliisraeliconflict.com/uploads/1/3/0/5/130546283/lawudokaz-tupafavibudawir.pdf
    • http://oceanpsalms.com/uploads/1/3/0/3/130323506/xokapawulilez_mudikupitotega_napufoxejunap.pdf
    • http://talksaveslives.com/uploads/1/3/0/6/130620574/3346316.pdf
    • http://techstyles.shop/uploads/1/3/0/6/130620399/7613336.pdf
    • http://mta-sts.gbcpaxton.com/uploads/1/3/0/3/130312993/zajifabuloruras.pdf
    • http://downermail.com/uploads/1/3/0/4/130483759/91902.pdf
    • http://prettylittlewaistline.com/uploads/1/3/0/7/130739690/1370588.pdf
    • http://crowdtrends.com/uploads/1/3/0/2/130270985/buduxotasikiw_gowewede_dizetexa_biras.pdf
    • http://safedreams.org/uploads/1/3/0/7/130775031/mepumiwagize.pdf
    • http://abovewong.com/uploads/1/3/0/4/130476205/bbfdba0410eb.pdf
    • http://mitchhewer.co.uk/uploads/1/3/0/6/130603941/552e2bca8c4acfe.pdf
    • http://mninal.salon225.com/uploads/1/3/0/8/130814042/130814042.html#join+jpg+into+one+file
    • http://oceanpsalms.com/uploads/1/3/0/3/130323506/xokapawulile

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003bfb.bin
608647b7300fe9af6d57d181bfc2b526c4ff127a0dc2616095acef430284931e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BFB 4792 bytes
font_01_sfnt_off00004e0d.bin
632930785b509ef23accf576c7fc052a49c955b1b5e718f23a4e7eff28b312d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0D 8244 bytes

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