Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbad6656a6b58a18…

MALICIOUS

PDF

36.7 KB Authoring application: LibreOffice Draw
MD5: 916f1c89ec63d095ee5ddd374b1e26f4 SHA-1: af67658621889d1676d3367a9184c9cbf0fa4730 SHA-256: fbad6656a6b58a187371b9e38ef1948d010b8740428e3913389cd02e342a7470
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, characteristic of a link farm used to distribute phishing content or redirect to malware. The dominant host for these links is houstonsteinway.net.

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://houstonsteinway.net/uploads/1/3/0/3/130379411/zepafatomibenir.pdf
    • http://seacareconsult.com/uploads/1/3/0/5/130543276/mekafarubetomij.pdf
    • http://www.inspiroihu.com/uploads/1/3/0/5/130589146/0bceb2e86.pdf
    • http://abbotcars.com/uploads/1/3/0/4/130477234/dalarivavizuvadamuzu.pdf
    • http://gonemidnight.com/uploads/1/3/0/7/130775265/rulobizudivevov.pdf
    • http://highdene.com/uploads/1/3/0/7/130776446/nazarefufivib.pdf
    • http://centercitycatering.com/uploads/1/3/0/3/130379113/2387959.pdf
    • http://michellejfernandez.com/uploads/1/3/0/6/130620384/kaxiridavowowateb.pdf
    • http://lucernecountryclubrvpark.com/uploads/1/3/0/4/130476309/8308773.pdf
    • http://tulipsandroses.photography/uploads/1/3/0/8/130814469/2215769.pdf
    • http://aearthsport.com/uploads/1/3/0/7/130740258/b576e5b.pdf
    • http://hostmaster.asahionline.com/uploads/1/3/0/2/130274199/8776009.pdf
    • http://rezpub.com/uploads/1/3/0/6/130604126/nivarola.pdf
    • http://autodiscover.deltafuntime.com/uploads/1/3/0/2/130271038/7450079.pdf
    • http://coge.me/uploads/1/3/0/4/130488503/6815537.pdf
    • http://nomadiu.com/uploads/1/3/0/6/130620327/cf50af96bca030.pdf
    • http://myamandarogers.com/uploads/1/3/0/6/130639164/624237.pdf
    • http://www.jgpittenterprises.org/uploads/1/3/0/2/130287881/vezafizev.pdf
    • http://cvayn.bpmtc.com/uploads/1/3/0/2/130289430/130289430.html#inferring+character+traits+worksheets+for+grade+1
    • http://myamandaroge

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000274c.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x274C 2652 bytes
font_01_sfnt_off000032e4.bin
ad87c802acdd0a2991eb2927b5af815286fdaf3070e518af1309fd2226b71f56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32E4 7440 bytes

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