Malicious PDF — malware analysis report

Static analysis result for SHA-256 19fe5252c7dcc561…

MALICIOUS

PDF

35.1 KB Authoring application: Inkscape
MD5: b60d832050f3f2854fafbd962fc80d6a SHA-1: 5079d1adeb0626f5a0636121d14293ea21d2eec0 SHA-256: 19fe5252c7dcc56190a6aabab2f51898ff939b9d9043c5e1edeb111652680312
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as flagged by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection further support its malicious nature. No scripts were extracted from this sample.

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://www.pandorasplaypen.co.uk/uploads/1/3/0/4/130483660/lizimujebimi-xugun.pdf
    • http://www.sceneandmore.com/uploads/1/3/0/6/130605036/voriji.pdf
    • http://www.highrockcreative.com/uploads/1/3/0/8/130874504/42074.pdf
    • http://mysmilepaparazzi.com/uploads/1/3/0/7/130776828/juxonofulawe.pdf
    • http://www.myarkcenter.com/uploads/1/3/0/5/130551129/2241444.pdf
    • http://crazycraftcubby.com/uploads/1/3/0/4/130476060/2543712.pdf
    • http://mysmartlifestyle.ca/uploads/1/3/0/5/130545733/rebenedazamusi.pdf
    • http://sjsbeacon.com/uploads/1/3/0/3/130379266/2d87a69f30fb7.pdf
    • http://chriswongfitness.com/uploads/1/3/0/3/130379289/349654.pdf
    • http://remcofitness.com/uploads/1/3/0/5/130589090/tazuvebadokom.pdf
    • http://tacodelcampus.com/uploads/1/3/0/5/130544136/76ade.pdf
    • http://www.themethodmeditation.com/uploads/1/3/0/4/130489132/jisoru-mibogadigif.pdf
    • http://makeyourmark.shop/uploads/1/3/0/5/130541313/fatopatuwatoda-roperaje.pdf
    • http://www.myobbookkeeper.net.au/uploads/1/3/0/6/130639240/2b7d87b90.pdf
    • http://proposals.tcapaving.com/uploads/1/3/0/7/130776521/papatila.pdf
    • http://therapyforeverybody.com/uploads/1/3/0/4/130488920/c59af10757700.pdf
    • http://djsilentj.com/uploads/1/3/0/7/130775758/xopidovebuxubo.pdf
    • http://bcattic.com/uploads/1/3/0/7/130738854/0d12f71.pdf
    • http://a1821787xstreamtravel.xsideas.com/uploads/1/3/0/5/130544889/130544889.html#combine+multiple+pdfs+mac+preview

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d20.bin
cf4316fa3caef9733a491248549ad00e2f4e23b72e082394563cd6ce6d277582
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D20 7380 bytes