Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea76875c7febd524…

MALICIOUS

PDF

38.2 KB Authoring application: LibreOffice Draw
MD5: ecaf20140f3b46a072fc5fff6c5fe0a5 SHA-1: 9526c177ef508768821a0389bae2ba0da66ec870 SHA-256: ea76875c7febd52440bd5fd2ddb3801a34bd915e07cc825195403b00e543d657
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a link farm and a ClamAV detection for phishing. The ML classifier also assigned a high probability of maliciousness. The embedded URLs suggest a phishing or malware distribution campaign, likely aiming to redirect users to malicious sites. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://novaya-gatchina.ru/uploads/2020/01/29/maburimibomagez.pdf
    • http://but.0706shpps05.fun/uploads/2020/01/28/8496330.pdf
    • http://mri-auto.com/uploads/1/3/0/3/130323693/mosiluxosoxo_zowogewex.pdf
    • http://thesupporthelp247.com/uploads/1/3/0/5/130589178/968446.pdf
    • http://capitalball.com/uploads/1/3/0/3/130313148/e67416087be.pdf
    • http://gov.ancientstudio.online/uploads/2020/01/29/086642ee8d23bf.pdf
    • http://piwagexu.baikalist.com/uploads/2020/01/29/minabetiti.pdf
    • http://newearth.design/uploads/1/3/0/6/130604546/tefositibin_vobafovojitini.pdf
    • http://mrspawlicki.weebly.com/uploads/1/3/0/5/130589145/tozoninijusep-noxamaver.pdf
    • http://oplata24info.online/uploads/2020/01/28/0967a6e16f.pdf
    • http://fynnad.store/uploads/1/3/0/2/130272421/tobamabazenu-mabeki-vudapokiv.pdf
    • http://snobz.co/uploads/1/3/0/5/130539554/domamitefoteno-bobeba-lijulus.pdf
    • http://smithsolarlab.com/uploads/1/3/0/2/130272648/6479997.pdf
    • http://metallicblackrecords.com/uploads/1/3/0/3/130313111/fadiwe.pdf
    • http://palmbeachhouserepair.com/uploads/1/3/0/6/130639665/karavusikuj.pdf
    • http://vega-music-group.com/uploads/1/3/0/3/130379237/3588432.pdf
    • http://neobedbugtaskforce.com/uploads/1/3/0/4/130436033/semudusosis.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/5/130550712/130550712.html#pennystocking+framework+part+deux+do

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001556.bin
a203032cea0f406a725a0825e95b2fd8135a2ca7dd9d309420a67720bee58b16
pdf-font-stream PDF embedded font (sfnt) at offset 0x1556 9012 bytes