Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a64b4572d9796b0…

MALICIOUS

PDF

65.9 KB Authoring application: LibreOffice Draw
MD5: 2fb0dc728471d951af3036a40084b612 SHA-1: bdea687f1c867faea2f29eeab3931a6ee7549450 SHA-256: 7a64b4572d9796b0fe5c252ee3b84aac33f1eb237df6bf5289dbc5a65544294f
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics, including a critical finding for a mass external PDF link farm and ClamAV detection as Pdf.Phishing.TtraffRobotInstall. The embedded URLs, which are numerous and point to various domains, strongly suggest a phishing or malware distribution campaign. The document body contains garbled text and embedded URLs, further supporting the malicious intent.

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 https://wumakajav.weebly.com/uploads/1/3/0/3/130379228/6067303.pdf
    • http://vevolip.splashvision.online/uploads/2020/01/28/migoxedij_letefonuxevux_dugabulonixu_sipine.pdf
    • http://fafiredino.baikalist.com/uploads/2020/01/27/4949321.pdf
    • https://vuvajopipebojix.weebly.com/uploads/1/3/0/6/130603978/jomozabakusulo-bukutepapuxej.pdf
    • http://takunuxogo.banglanews.pro/uploads/2020/01/27/xejetunupewu-tufeto.pdf
    • http://fugotujiwe.vetrics.ru/uploads/2020/01/28/380569.pdf
    • http://vv6vv.top/uploads/2020/01/28/f7d6db57a.pdf
    • http://carllarosa.com/uploads/1/3/0/5/130543264/mebanavuviku_woxatovexabo_dodikabixevi_susobuze.pdf
    • http://kloconsulting.us/uploads/1/3/0/3/130379407/samiralitij_fesupozuge.pdf
    • http://reidislandwoodworks.ca/uploads/1/3/0/5/130540585/biwonekegamiruw.pdf
    • https://devofalafuzami.weebly.com/uploads/1/3/0/5/130547659/xefonefebo.pdf
    • https://ludiroros.weebly.com/uploads/1/3/0/2/130291029/mizitu-juser-wosojasinoter.pdf
    • http://el1t.ru/uploads/2020/01/27/7e9c9ebc13ec11e.pdf
    • http://vop.rentaprice.ru/uploads/2020/01/28/fb2306.pdf
    • http://1169certified.us/uploads/1/3/0/5/130551472/2867808.pdf
    • http://tammykjohnson.com/uploads/1/3/0/3/130313199/guxidiwebotoj.pdf
    • https://bivutogixabem.weebly.com/uploads/1/3/0/6/130604696/2605721.pdf
    • https://vuwizosub.weebly.com/uploads/1/3/0/2/130287238/xemivuwazo.pdf
    • http://urfacefix.com/uploads/1/3/0/5/130551063/130551063.html#hp+stream+touch+screen
    • 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_off00001666.bin
08200ca528489d93ac832e9e97d2eee4327738152f16a30999f291728039e377		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1666 9116 bytes
font_01_sfnt_off0000baf7.bin
d12e1945699adc080c3e2f49a2c45ee9a70cbb178c18d882f92367fcd923f800		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBAF7 16396 bytes

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