Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3bf7c49a1c09a39…

MALICIOUS

PDF

39.9 KB Authoring application: Inkscape
MD5: 5e6344557b40e80161eb12896ef17a0e SHA-1: ffb0dbc2119a8f43892804a52afaebfcedd1bdde SHA-256: b3bf7c49a1c09a3970325e1c629a2fa3483a011f14b48f70e7dca9ea1b69ccb9
120 Risk Score

Malware Insights

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

The PDF contains a large farm of external links, as detected by the PDF_SEO_LINK_FARM heuristic. The embedded URLs point to numerous PDF files hosted on various domains, suggesting a coordinated effort to redirect users. The ClamAV detection further confirms the malicious nature of the file, classifying it as Pdf.Phishing.TtraffRobotInstall. The document body contains garbled text, indicating it is not intended for human consumption but rather as a container for the malicious 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://primechairmen.com/uploads/1/3/0/5/130539092/bedonaxodijakom-wexosotexese-jogidelonipib.pdf
    • http://mingpaousa.com/uploads/1/3/0/5/130589430/sefipukabebagi.pdf
    • http://betterenergyproducts.com/uploads/1/3/0/6/130621276/kapufamineneb-majigo-sewiwoje.pdf
    • http://nkathleen.com/uploads/1/3/0/2/130270823/1398700.pdf
    • http://neurologiccare.com/uploads/1/3/0/5/130589416/mesatebodo.pdf
    • http://michaelgierl.com/uploads/1/3/0/7/130775056/7756422.pdf
    • http://stonecreekglobal.net/uploads/1/3/0/5/130544448/vupatesatil_dijurupi_pabipa_ganutab.pdf
    • http://treeservicechulavista.com/uploads/1/3/0/4/130476873/6825178.pdf
    • http://effectiveinfotech.com/uploads/1/3/0/4/130436188/5998742.pdf
    • http://www.scuti-advisory.com/uploads/1/3/0/6/130640069/1d4ebe022a4872.pdf
    • http://ostakaa.com/uploads/1/3/0/9/130969206/zotevotudeb.pdf
    • http://4us2wire.com/uploads/1/3/0/4/130488172/096db861.pdf
    • http://12250parkway.com/uploads/1/3/0/3/130313316/kisumone.pdf
    • http://chihchulin.com/uploads/1/3/0/6/130620509/843629.pdf
    • http://guitarhugs.com/uploads/1/3/0/5/130588579/zujejeriwusimubi.pdf
    • http://spencertunickbooks.com/uploads/1/3/0/6/130605175/xekipez.pdf
    • http://diabolickal.com/uploads/1/3/0/7/130776142/terulul.pdf
    • http://camp.greenbush.org/uploads/1/3/0/7/130776239/bubasinigobu.pdf
    • http://enola-theword.com/uploads/1/3/0/2/130272862/bupugofotuwobuzar.pdf
    • http://largetips.com/uploads/1/3/0/2/130289421/42239.pdf
    • http://middletonandnewbigginparishcouncil.org/uploads/1/3/0/6/130640066/4603030.pdf
    • http://ryansjewelryshop.com/uploads/1/3/0/4/130479210/564675.pdf
    • http://blacklocustpastures.com/uploads/1/3/0/3/130379243/130379243.html#adding+and+subtracting+integers+worksheet+math+aids
    • http://camp.greenbush.o

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003a3b.bin
49cf4e3bee2316f70aac855901ff030426f9e05b67e152a8f818d1b7b53bcd4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3A3B 8036 bytes

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