Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2aa95ab3cb1fbb…

MALICIOUS

PDF

32.9 KB Authoring application: Scribus
MD5: 9889acc1975908fe5da5cf8e5c54949d SHA-1: 0cfecf6b199d3a03cdc6f755ca08d090b227f58e SHA-256: 2e2aa95ab3cb1fbb54d195589459fc9584e4c69b04131bd72ff24f661d8b61b4
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, indicating a link farm or redirection scheme. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly suggest a phishing or malware distribution campaign. The ML classifier also flagged this file with high confidence. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact lure.

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://www.lynscakes.net/uploads/1/3/0/7/130775501/lefuxapabaxif.pdf
    • http://tenzafansite.com/uploads/1/3/0/7/130740521/ninikosaweni-mukisuxutukufom-diranonime.pdf
    • http://genesisroofingco.com/uploads/1/3/0/4/130476642/tirigenagu-jatagokesuj.pdf
    • http://www.myglamorouskitchen.com/uploads/1/3/0/6/130620297/1258315.pdf
    • http://www.ashleys.store/uploads/1/3/0/4/130489572/jelegalajigirarabilo.pdf
    • http://labviewstudent.net/uploads/1/3/0/2/130289775/40e10595a036c.pdf
    • http://www.bsimplymindful.org/uploads/1/3/0/6/130604527/kulekisavosokuwemiw.pdf
    • http://lrglarcinrealtygroupinc.com/uploads/1/3/0/9/130969075/kilofatijavejabepuso.pdf
    • http://omeri.com/uploads/1/3/0/6/130622024/584579628a6c9.pdf
    • http://metropolitaneprep.com/uploads/1/3/0/6/130605422/xazuleterevogok.pdf
    • http://www.freshtreedelivery.com/uploads/1/3/0/7/130776749/6267901.pdf
    • http://shop.jopond.com/uploads/1/3/0/4/130488584/130488584.html#lirik+lagu+coldplay+yellow+dan+kunci+gitar

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000027e5.bin
c60c72c4389f0e9f161334a1d94efc080f12e38b95d474576c8f217d49da6b1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E5 8368 bytes

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