Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d3ef5f32d664f18…

MALICIOUS

PDF

42.3 KB Authoring application: ImageMagick
MD5: a188e706286e859d50ce4817d71bd5fe SHA-1: 407e04239000d7b41aacb63f3b0a5829c00a8f2b SHA-256: 8d3ef5f32d664f183030eed4a7900e2b8460fd6a572938c1149951f57c9ea2a9
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, disguised as TOEFL practice tests. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution via these links. 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://mpunlimited.com/uploads/1/3/0/4/130489222/mudebojur_rabivoxef_vasedajafelusob_rigupuda.pdf
    • http://texasinjurycenter.net/uploads/1/3/0/8/130873708/7865615.pdf
    • http://nickjanelandscape.com/uploads/1/3/0/4/130488382/delimiligosefuzutora.pdf
    • http://masstechlaw.net/uploads/1/3/0/7/130739190/ceb4b5abc1bf.pdf
    • http://jordansummers.net/uploads/1/3/0/6/130620869/xevobomagako.pdf
    • http://newleaf-dayspa.com/uploads/1/3/0/5/130541600/gagivoka_gobamowu.pdf
    • http://mycusina.com/uploads/1/3/0/6/130621307/318bcc4b4616.pdf
    • http://schoolviews.com/uploads/1/3/0/6/130620823/muvemefujesima.pdf
    • http://mydhfastmandat.com/uploads/1/3/0/2/130288768/4186565.pdf
    • http://trentriverdesigns.com/uploads/1/3/0/7/130776478/130776478.html#toefl+practice+test+pdf+reading

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000124e.bin
66db17424dc6d6c570fc95084ec4e2fea94d9e0cb6f991a583796da16a33abdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x124E 8472 bytes

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