Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fd788ee6b1ef202…

MALICIOUS

PDF

73.7 KB Authoring application: Scribus
MD5: 611fe7cf70a32facc106b6ad4c02439d SHA-1: e14de678c69c3aca2aa31d2112bd761ede3fd762 SHA-256: 0fd788ee6b1ef202e421090f9d15c6a7fe4ed4d4c20e1754e7c448f10c9f80aa
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or a distribution mechanism for further content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or SEO abuse. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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://sabco.org/uploads/1/3/0/5/130589180/89979.pdf
    • http://orientacionsocialfemenina.org/uploads/1/3/0/5/130590682/debdebd13a22.pdf
    • http://kaleshwar-groups.net/uploads/1/3/0/6/130620537/xejume.pdf
    • http://srcwwtp.com/uploads/1/3/0/7/130775934/5493615.pdf
    • http://asisuppliermarketing.com/uploads/1/3/0/8/130813652/bivelebok.pdf
    • http://guardioesdeluz.com/uploads/1/3/0/2/130289189/gapefuwiji.pdf
    • http://oddamericancompany.com/uploads/1/3/0/5/130551981/3909152.pdf
    • http://maritime-economics.com/uploads/1/3/0/4/130436242/6824047.pdf
    • http://noteworthyatms.net/uploads/1/3/0/2/130272395/ad8335382f19.pdf
    • http://kateforcouncil.org/uploads/1/3/0/6/130604397/lirak.pdf
    • http://stageflow.net/uploads/1/3/0/6/130620981/wazomali.pdf
    • http://onnellisuuskoulu.net/uploads/1/3/0/5/130590550/6844148.pdf
    • http://annemariabello.com/uploads/1/3/0/6/130639648/a02c0.pdf
    • http://approachableworld.com/uploads/1/3/0/7/130776230/vizanonametobad.pdf
    • http://northwestuu.com/uploads/1/3/0/7/130740260/130740260.html#les+quatres+accords+tolt%C3%A8ques+r%C3%A9sum%C3%A9
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002614.bin
56d68e90521af056d4853264a51294445b253e3ea1c32727dd719043103bcddc
pdf-font-stream PDF embedded font (sfnt) at offset 0x2614 10404 bytes
font_01_sfnt_off0000db13.bin
1d1fa5121415f8f5353993473374918b9d2a38f433752094af4cce5d3be72c8c
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB13 16312 bytes