Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cae1a841b4a338a…

MALICIOUS

PDF

42.9 KB Authoring application: Karbon
MD5: 0de0af0d6acf2924e58ce1b9abf7cb7d SHA-1: 0cb4dfd1123f91cacd1083984279a73c14b6be6e SHA-256: 0cae1a841b4a338a621d864edd7a7f3ae6bda56a32c8bf2626b2c9d06b0d9d51
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier also flag this file as malicious, specifically as a phishing attempt. The embedded URLs likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 https://rasavinev.weebly.com/uploads/1/3/0/4/130488417/3352616.pdf
    • http://cbdsnacks.me/uploads/1/3/0/4/130436159/8107739.pdf
    • http://bellevistaassistedliving.com/uploads/1/3/0/2/130270956/11344.pdf
    • http://belindabucknell.com.au/uploads/1/3/0/4/130483494/5473771.pdf
    • http://allthis.org/uploads/1/3/0/3/130379232/mabidexasadug_rikirepuzi.pdf
    • http://monalisatravelling.com/uploads/1/3/0/4/130436204/488410.pdf
    • http://romneyevent.com/uploads/1/3/0/4/130435672/runuwerisem.pdf
    • http://nwavalanchesolutions.com/uploads/1/3/0/5/130540699/relakagem.pdf
    • http://tkrealtysolutionssa.com/uploads/1/3/0/4/130478648/welimibojedox-towagolomenaner-mikedurofufoli.pdf
    • http://newoutsiderart.com/uploads/1/3/0/2/130271098/rutok-gilakovaxilaxo.pdf
    • http://isaga-crt.com/uploads/1/3/0/7/130775484/loreligagova_xosag.pdf
    • http://camp.greenbush.org/uploads/1/3/0/5/130540507/636f973158bb.pdf
    • http://misbailes.com/uploads/1/3/0/5/130590717/130590717.html#rutina+de+ejercicios+para+reducir+abdomen+y+cintura
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicense

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001392.bin
daa5f055ed3deec86248d575a92ba8e9f154f19dcd054f6f95856da4c2da1745		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1392 9056 bytes
font_01_sfnt_off00006218.bin
50224c6c483bfa86a10f62efd7baa2c756f8036c0a911ebd537387e21b2fb6f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6218 2732 bytes
font_02_sfnt_off00006afe.bin
746056e11864d82951d03509d0618eab9eedf49eaa95fc8df6e257336084157c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFE 2360 bytes

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