Malicious PDF — malware analysis report

Static analysis result for SHA-256 176037e686eec938…

MALICIOUS

PDF

52.7 KB Authoring application: LibreOffice Draw
MD5: 5ce23cadf467005f5c64ec186f01f8fc SHA-1: c4b2af6e7bf936366d649dc9fbad59b83ce81ae5 SHA-256: 176037e686eec938e543f4be29a162ee2c5f63e87b158ed8459653306f04fb92
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as flagged by the PDF_SEO_LINK_FARM heuristic and ClamAV detection. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://www.usbornebooksandmorewithdonna.com/uploads/1/3/0/3/130323762/8484346.pdf
    • http://belgiumdiamondlab.com/uploads/1/3/0/6/130605118/a1ce6ce26f0.pdf
    • http://jolenesphotography.com/uploads/1/3/0/5/130551890/ralewogum.pdf
    • http://www.kickswimschool.com/uploads/1/3/0/2/130289327/9069125.pdf
    • http://mychamberofsecretss.com/uploads/1/3/0/6/130640182/4825581.pdf
    • http://3amcollage.com/uploads/1/3/0/5/130588803/2311642.pdf
    • http://tramontanafv.com/uploads/1/3/0/2/130271229/6235344.pdf
    • http://amandasamanthabrookessecrets.com/uploads/1/3/0/5/130550667/wemuwiv.pdf
    • http://rayrobbinsagency.com/uploads/1/3/0/3/130324390/mugamozidex_wajatu_gaxozosa.pdf
    • http://www.pipsprettypaws.me/uploads/1/3/0/7/130738696/7a4646124.pdf
    • http://www.finixmarketing.com/uploads/1/3/0/3/130313405/sosuw.pdf
    • http://texasfinesse.com/uploads/1/3/0/7/130739142/950432.pdf
    • http://nelsonmassage.com/uploads/1/3/0/5/130539936/6135394.pdf
    • http://nakedtrackdays.net/uploads/1/3/0/3/130313454/wogen.pdf
    • http://operationcleanoutia.com/uploads/1/3/0/7/130775309/5f476eb504411.pdf
    • http://dianehunterart.com/uploads/1/3/0/3/130324351/eb57ee9616d.pdf
    • http://koasports.com.au/uploads/1/3/0/5/130588195/mikafuperer.pdf
    • http://rnenergy.com/uploads/1/3/0/2/130273846/3bbf704.pdf
    • http://labeach.com/uploads/1/3/0/6/130621702/ranovogaxeduje_norekur_teluzom.pdf
    • http://scottgieser.com/uploads/1/3/0/6/130622061/fenakix.pdf
    • http://thepolarroute.com/uploads/1/3/0/5/130589095/76cea1d9.pdf
    • http://scribbletech.net/uploads/1/3/0/6/130639062/batiromu-warugul-naladivi.pdf
    • http://www.deirdrebergeron.com/uploads/1/3/0/5/130588477/925523db32c28.pdf
    • http://cfzer.slpny.com/uploads/1/3/0/4/130483680/130483680.html#singular+solution+of+differential+equation+example+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049f2.bin
b080e6aa9682ff87567a230b404ab00780bafcfd3ba11e3f536b788ca6e08ef5
pdf-font-stream PDF embedded font (sfnt) at offset 0x49F2 16060 bytes
font_01_sfnt_off00005e32.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E32 2600 bytes
font_02_sfnt_off00006a60.bin
976f836de4692bc10fe96e45356727bf62b0d198a5e65cf19d9ae62866baee9d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A60 8548 bytes