Malicious PDF — malware analysis report

Static analysis result for SHA-256 546a55b23f351cd6…

MALICIOUS

PDF

78.7 KB Authoring application: ImageMagick
MD5: e32eb106fd0582534286656961749015 SHA-1: ca7a779e9d32d8229337dfd4aea923597d6c9f98 SHA-256: 546a55b23f351cd692c5f47fcfbc1bbc048b3fd0ef4a57382086402bc19bc38c
152 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 by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML_NYX_PDF_MALICIOUS and ClamAV detections confirm its malicious nature, with ClamAV specifically identifying it as Pdf.Phishing.TtraffRobotInstall. The embedded URLs suggest a phishing or malware distribution campaign, aiming to redirect users to potentially harmful content hosted on domains like xowamolen.kropanev.online.

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://xowamolen.kropanev.online/uploads/2020/01/27/1780544.pdf
    • https://sipesorogasem.weebly.com/uploads/1/3/0/2/130291975/dovakebifir.pdf
    • http://bud.migraskope.net/uploads/2020/01/27/fekonepubif.pdf
    • http://dutix.jasonbarun.com/uploads/2020/01/27/tuwijupariganugo.pdf
    • https://dezulatekamow.weebly.com/uploads/1/3/0/4/130435929/reragunepuzubo-vobuzixode-roxejazisazez-wafer.pdf
    • http://vexowo.trendishop.info/uploads/2020/01/28/soxuwo.pdf
    • http://ekstra123.ru/uploads/2020/01/28/tizitofelijarudad.pdf
    • http://fieldhockeygoalkeeping101.com/uploads/1/3/0/6/130603922/abf560.pdf
    • http://wareted.ib-airbank.mobi/uploads/2020/01/28/1808415.pdf
    • http://msmaley.com/uploads/1/3/0/2/130288334/dd503908743463.pdf
    • http://afawifc.org/uploads/1/3/0/5/130588621/sobizarusugudu-kixovuwag.pdf
    • http://amycashproperties.com/uploads/1/3/0/6/130620207/130620207.html#%D9%83%D8%AA%D8%A7%D8%A8+%D8%A7%D9%84%D8%AA%D9%82%D8%B1%D9%8A%D8%B1+%D8%A7%D9%84%D8%A5%D8%A8%D8%AA%D8%AF%D8%A7%D8%A6%D9%8A

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000d0b1.bin
f2dccaca5bd8c2d62501b42e66d7d3d5882443cf4090b76478ce58c64001dd39		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD0B1 33040 bytes
font_00_sfnt_off00001395.bin
9430377c67da2afa09405165ccd523b3e0596e45e87bf5a1a578e4e74d66a8af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1395 6248 bytes

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