Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ac42055ff33a3f…

MALICIOUS

PDF

30.4 KB Authoring application: Serif PagePlus
MD5: b252a8c50461d9022557e936a945210e SHA-1: 83a3f3102e56ba1f6aefcf80f543d8915b7ee2ab SHA-256: e2ac42055ff33a3f1d7361101b0813d598e34960352b6e46c843e1cc1a2bfc5a
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the heuristic 'PDF_SEO_LINK_FARM' and the numerous unknown reputation URLs suggest a content-luring or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jordanlosesweight.com/uploads/1/3/0/6/130621075/sozazikusize.pdf
    • http://1touch.org/uploads/1/3/0/6/130621115/tivokekizeb_zijexi.pdf
    • http://solicitacoes.online/uploads/2020/01/27/5550980.pdf
    • http://obrothersdetailing.com/uploads/1/3/0/6/130639500/xuguluzugu_dikepuso_givegivumodizo.pdf
    • http://christianmeditationrookies.com/uploads/1/3/0/6/130604411/nosumejapiti.pdf
    • https://xepulaxiwisi.weebly.com/uploads/1/3/0/4/130475982/6362696.pdf
    • http://muziekkapel.be/uploads/1/3/0/2/130272432/7b09fa01a8764.pdf
    • http://redmaplecelpipedu.com/uploads/1/3/0/2/130271067/ginurugabetu.pdf
    • http://scootersafari.co.nz/uploads/1/3/0/4/130477882/2245607.pdf
    • https://ravexiberoder.weebly.com/uploads/1/3/0/5/130550772/ed4c00209ea20f.pdf
    • http://reboundat.com/uploads/1/3/0/6/130605332/130605332.html#irregularly+formed+bluish+discoloration+around+the+umbilicus

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001261.bin
d354791c806931e9f3bdb0e4d3d10a68d3e7c57a578ca45d2eb85d4624db1729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1261 7320 bytes

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