Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ffcc879a6d88068…

MALICIOUS

PDF

38.3 KB Authoring application: Soda PDF
MD5: f43721b6614a8eda668f44f6d428b856 SHA-1: d46bccd47efd9585ea23df22fcd7e30fc7d1a50a SHA-256: 4ffcc879a6d88068591c0edcc38ae376893b82ac1459fcb3f895cbb1d12a620c
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files across various domains, indicating a link farm or distribution network. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly suggest malicious intent, likely related to phishing or traffic redirection. The document body, though heavily obfuscated, contains references to these URLs, reinforcing the attack pattern.

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://wellosophy.com/uploads/1/3/0/4/130483167/b6f2a8db5b.pdf
    • http://geneticdetection.com/uploads/1/3/0/5/130542902/ac896.pdf
    • http://alexandermgmtnyc.com/uploads/1/3/0/5/130589037/xapaxumerugomu_wobesaroj_kadije_dexekulawi.pdf
    • http://statyatell.weebly.com/uploads/1/3/0/2/130289756/77bd53.pdf
    • http://canllonga.es/uploads/1/3/0/4/130435766/linirawozapetes-somali-gaxivowuv-wofuwujojif.pdf
    • http://thatguyrayfx.com/uploads/1/3/0/3/130379379/9390356.pdf
    • http://mintofarm.ca/uploads/1/3/0/6/130604594/gexujekedukab.pdf
    • http://primeamazon.net/uploads/1/3/0/6/130621657/segorajemati.pdf
    • http://alanier2.com/uploads/1/3/0/5/130550961/bavubigot.pdf
    • http://solitlife.net/uploads/1/3/0/3/130313671/6398749.pdf
    • http://bodyworkbybarb.com/uploads/1/3/0/7/130776826/68dbc76a53c14.pdf
    • http://upwholesaleflooring.com/uploads/1/3/0/2/130272385/1940422.pdf
    • http://carpetcleancary.com/uploads/1/3/0/6/130604014/130604014.html#asean+political+security+community+blueprint+2009

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014e8.bin
cdcc4d2039686e725ccedd5a8ac429d450961b8be55d247e5287cfcddfd2d29f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E8 7528 bytes

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