Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d5397810fef891d…

MALICIOUS

PDF

98.0 KB Authoring application: QPDF
MD5: be397945bb14083957defdeaf516d402 SHA-1: 1accf1040f456a96a55d7e3b84bc6127572a7e45 SHA-256: 0d5397810fef891db75c216a9c08954f21c99e82f25b3d6f16299201c9cc60d5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs pointing to other PDF files, indicative of a link farm or redirection scheme. The presence of a 'download button' heuristic and ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall' strongly suggests a phishing or malware distribution attempt. The embedded URLs are likely used to host further malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://sajemesije.shoprixo.com/uploads/2020/01/27/nafadarufubivo_zoxido.pdf
    • http://kittoconsultancy.com/uploads/1/3/0/5/130588936/4905947.pdf
    • http://promiseskepthomecare.com/uploads/1/3/0/5/130542781/55ff7cfcadaadb.pdf
    • http://truurelief.com/uploads/1/3/0/6/130604292/9f7a21a9.pdf
    • http://pamejabo.technolojix.com/uploads/2020/01/28/faxugasewedozu.pdf
    • http://yanglegal.pro/uploads/2020/01/29/6378056.pdf
    • http://norvelfinancialsolutions.com/uploads/1/3/0/2/130288430/6876676.pdf
    • http://50staaten.de/uploads/1/3/0/5/130588584/pipuko_vukod_luwejawifizakud_mifawapujef.pdf
    • https://xarokubemud.weebly.com/uploads/1/3/0/3/130379681/9813162.pdf
    • http://amarbeck.com/uploads/1/3/0/5/130550782/683347.pdf
    • http://diracommunity.com/uploads/1/3/0/5/130588802/2366222.pdf
    • http://misssupremepurityqueen.com/uploads/1/3/0/6/130620959/130620959.html#public+administration+in+india+book+pdf
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000139b.bin
26daf6d763c18617fe5fa508a92f905e529ebbd77b94a8ebfbaaa5c8024f0ee2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x139B 8976 bytes
font_01_sfnt_off00008418.bin
1c7df25cf70595d72416a4d54f3845ebd17d28c86d8cd3e41f8a809d1c46594d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8418 9804 bytes
font_02_sfnt_off00009d3e.bin
ef0a5cfd058720acfdc2d25a6ef08ed917b9d0ffe6d337e706d4f2807a4e0c5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D3E 1632 bytes
font_03_sfnt_off0000a580.bin
6037ff67f96b58508940102824936f7515ee9d3d5bc474afc4a9b70cc88d5c5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA580 16328 bytes

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