Malicious PDF — malware analysis report

Static analysis result for SHA-256 d40a73eccdeea692…

MALICIOUS

PDF

41.3 KB Authoring application: SWFTools
MD5: 1b78114c14db70e67f5cfb0a935e2e66 SHA-1: 7ebd955ed50e0bda267de771415aadd3c9235fb6 SHA-256: d40a73eccdeea6929f9b8287c80d425d0652e3a12b6e2b36201205654b795c87
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious payloads. ClamAV identified this as 'Pdf.Phishing.TtraffRobotInstall-7605656-0', indicating a phishing or traffic redirection purpose. The ML classifier also strongly flagged this as malicious. No scripts were extracted, but the sheer volume of outbound links suggests a coordinated effort to redirect users to potentially harmful content.

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://landofosllc.net/uploads/1/3/0/7/130739806/wonugazedijodek-lukukofo.pdf
    • http://motodroid.com/uploads/1/3/0/7/130740561/jajadadokamuz.pdf
    • http://dr-ballouz.eu/uploads/1/3/0/7/130776585/zedisekuwofejes.pdf
    • http://thevillagrovehome.com/uploads/1/3/0/3/130323157/minikegeg-ginazemunox.pdf
    • http://simplyenhancingbeautylounge.com/uploads/1/3/0/6/130620233/ridagugifup.pdf
    • http://jonupsalsgarden.com/uploads/1/3/0/2/130273733/fetofujew.pdf
    • http://tonebabyrecords.com/uploads/1/3/0/8/130814173/4721031.pdf
    • http://cahindia.com/uploads/1/3/0/7/130776252/0b82f2df4cb.pdf
    • http://134thestrand.com/uploads/1/3/0/2/130272496/fojelubatufa_nisula.pdf
    • http://decgallery.com/uploads/1/3/0/4/130436399/4ce4c5876714b9.pdf
    • http://gardensalonpasadena.com/uploads/1/3/0/5/130539034/wagizemuzajup.pdf
    • http://charlottesvilleostomysupport.com/uploads/1/3/0/2/130289581/3c8501.pdf
    • http://mycthomson.com/uploads/1/3/0/2/130272084/buxobaxipome.pdf
    • http://taniashaw.net/uploads/1/3/0/2/130271030/7b060f7574f6f.pdf
    • http://veinlesslegs.com/uploads/1/3/0/9/130969982/998125.pdf
    • http://www.dyecash.com/uploads/1/3/0/3/130313454/524314.pdf
    • http://darkmediaguy.com/uploads/1/3/0/2/130272330/surinudu.pdf
    • http://dayoldcupcake.com/uploads/1/3/0/8/130873990/tosugugivilix-xunutiridutavez-wutuwa-jixivubev.pdf
    • http://adc-horses.com/uploads/1/3/0/4/130435943/maparuma.pdf
    • http://helloworld-media.com/uploads/1/3/0/7/130740561/34dde416b0.pdf
    • http://avatardma.com/uploads/1/3/0/5/130588542/tazurexo.pdf
    • http://shardexplorers.com/uploads/1/3/0/5/130551925/130551925.html#present+perfect+continuous+vs+present+perfect+esercizi
    • http://jonupsalsgarden.com/uploads/1/3/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001f61.bin
f31c439e28d0137206b91a151f21343900f846ed9ff070250fbe82eb1cc7da1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1F61 16204 bytes
font_01_sfnt_off0000343c.bin
83d89f79375f7f339e88070a8779324ce221c94923bff415e388e162fbc46cfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x343C 2604 bytes
font_02_sfnt_off00003fec.bin
ebebd728f065e14d10df2c63b9e5bca2329075a9276429a0bffadd823314b6d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x3FEC 7928 bytes