Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c544a147037a6f2…

MALICIOUS

PDF

32.9 KB Authoring application: Adobe PDF Library 9.0
MD5: 99c4693e5d3e9d329e56fc6e474ef943 SHA-1: 726800871443b243c21694e41bc574f0ad80fb06 SHA-256: 0c544a147037a6f228355ff92f02f1fb920a297c34c6c4fcce4bd8b4978a6d73
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of compromise, likely leading to phishing or malware distribution.

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://chrismfwise.com/uploads/1/3/0/3/130313458/5140824.pdf
    • http://laurabirdsallglass.com/uploads/1/3/0/6/130605312/sagudujimumexex.pdf
    • http://mpatoska.com/uploads/1/3/0/7/130739200/38574b7.pdf
    • http://diegoherreradesign.com/uploads/1/3/0/7/130740055/2f1387e8.pdf
    • http://alexbrightphotography.com/uploads/1/3/0/7/130739324/nibusijedajonepaja.pdf
    • http://surfsideplayhouse.org/uploads/1/3/0/7/130739544/mufemogol_pejasez.pdf
    • http://ilaugh.club/uploads/1/3/0/6/130604333/6261303.pdf
    • http://modernsteps.net/uploads/1/3/0/6/130639107/gutuxamenapisap.pdf
    • http://danvillepd.org/uploads/1/3/0/6/130640019/706244.pdf
    • http://mx.lezhookup.com/uploads/1/3/0/7/130739889/dujetipitotewejene.pdf
    • http://simplymarvelouslife.com/uploads/1/3/0/4/130490602/dilamoli.pdf
    • http://wangshangzhenrenqipai.br3h.com/uploads/1/3/0/6/130621900/130621900.html#animal+colouring+pages+cartoon

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ae4.bin
884e46f2a8425da82c9061f73e5fadc19bcb7bbffc294c97fb91ad7d4fb1558a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE4 7512 bytes

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