Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa8800a2d517b52a…

MALICIOUS

PDF

38.9 KB Authoring application: Nitro PDF
MD5: e7db90f44b009a767802e8f7260027c6 SHA-1: 84e6ecbaa87e650d4384a14e799e7a9ec885c40d SHA-256: fa8800a2d517b52accebc2f4463b1f131444df86a94034d62eccb2b91ce70622
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This behavior is consistent with SEO spam or a phishing campaign designed to drive traffic to malicious content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://smoothjazzisrael.com/uploads/1/3/0/6/130604788/3697164.pdf
    • http://headandheartherapy.org/uploads/1/3/0/2/130291355/117e446860e.pdf
    • http://radicalmeadows.com/uploads/1/3/0/6/130604666/4375917.pdf
    • http://gopro-asia-idc.com/uploads/1/3/0/7/130738956/pulemezizixivu-fejujisa.pdf
    • http://rubymacfashion.com/uploads/1/3/0/4/130476624/5499613.pdf
    • http://www.heirspedromarialisadolores.com/uploads/1/3/0/7/130740461/nadure-bebavamejaj-mesin.pdf
    • http://asianart.studio/uploads/1/3/0/2/130270834/3558070.pdf
    • http://caninecompanionkollege.com/uploads/1/3/0/3/130379299/7591634.pdf
    • http://lavendula.org/uploads/1/3/0/6/130604198/gupaxafitoxe.pdf
    • http://townhousemarketinggroup.com/uploads/1/3/0/6/130639201/20fd1bddc50.pdf
    • http://howtogaragestorage.com/uploads/1/3/0/5/130539311/3533199.pdf
    • http://recruiting2care.com/uploads/1/3/0/6/130620427/gitetugiga-likenikodapam.pdf
    • http://rosasbusinessandcleaning.com/uploads/1/3/0/2/130271185/zipoxujujonep-tulegos-diwosadupuno-mefepogixuja.pdf
    • http://rvinspectionservices.info/uploads/1/3/0/4/130483603/mofiximak-savodobilej-guxitej-mapitimibosabem.pdf
    • http://jwallach.net/uploads/1/3/0/4/130435710/metovuxomi-rizejivelov-sudar.pdf
    • http://obituarydating.net/uploads/1/3/0/6/130621771/ferativi-fijaletabik-zopakumano-piguxuliwilu.pdf
    • http://carterskennel.com/uploads/1/3/0/3/130313463/tuduradimobemikekim.pdf
    • http://stormfilmsperu.com/uploads/1/3/0/8/130813784/7601587.pdf
    • http://equivesthq.com/uploads/1/3/0/6/130639603/596880.pdf
    • http://bayscoentertainment.com/uploads/1/3/0/8/130874606/5600773.pdf
    • http://traffics.site/uploads/1/3/0/7/130775201/7f4964cb.pdf
    • http://gracegalleryashburton.co.nz/uploads/1/3/0/5/130589044/1534030.pdf
    • http://iveyvoicestudio.com/uploads/1/3/0/6/130604321/dilajimep.pdf
    • http://mountainsportandfitness.com/uploads/1/3/0/2/130287493/17ce06bbeb.pdf
    • http://kids.ladse.org/uploads/1/3/0/7/130775386/130775386.html#compress+pdf+file+upto+100kb

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003290.bin
2afbcaa7a3d7c90ff437dee22d7dc007fd03432db86bf9407bc662149d40086c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3290 8524 bytes

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