Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c4831b93c6aa846…

MALICIOUS

PDF

36.7 KB Authoring application: Inkscape
MD5: cf6877c35a9c0642733dedceac607372 SHA-1: c49d771c875238d88c9db0d0383df2c4e97a5bc6 SHA-256: 7c4831b93c6aa84693b07eeea9fa4b9af2cec37906fd1b974e1cbfac723d0fa5
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 documents hosted on various domains. This behavior is indicative of a link farm or a phishing campaign designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.

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://drkerriesmedley.com/uploads/1/3/0/7/130776619/e0250a129f3.pdf
    • http://raulfortes.com/uploads/1/3/0/3/130379718/rinedoki_dumifelomegakod_nutemip.pdf
    • http://woodridgefarm.net/uploads/1/3/0/7/130740573/00c46726.pdf
    • http://thewesspotcateringservices.org/uploads/1/3/0/6/130620168/fagunonukuw.pdf
    • http://ozimek.net/uploads/1/3/0/7/130775275/2946886.pdf
    • http://snmfineart.com/uploads/1/3/0/5/130551567/juxabixagebanoj.pdf
    • http://northernvalleysportinggoods.com/uploads/1/3/0/7/130775361/4600134.pdf
    • http://aprendizajeactivobrumiel.com/uploads/1/3/0/5/130540897/8171961.pdf
    • http://simplyenhancingbeautylounge.com/uploads/1/3/0/8/130813896/67a1260.pdf
    • http://mingalarfoods.com/uploads/1/3/0/6/130622023/ecd3ba.pdf
    • http://casahabana56.com/uploads/1/3/0/7/130775911/e51ef20c2591e7f.pdf
    • http://danrebsoriano.net/uploads/1/3/0/3/130323624/2320892.pdf
    • http://youbrewchicago.com/uploads/1/3/0/7/130775772/130775772.html#kdigo+anemia+hemodialysis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000380c.bin
bc16a35207c109221047b18b9a50319f47b18164d13c2a4baec172aed66a7032		 pdf-font-stream PDF embedded font (sfnt) at offset 0x380C 7788 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.