Malicious PDF — malware analysis report

Static analysis result for SHA-256 8394863427925fa6…

MALICIOUS

PDF

32.7 KB Authoring application: LibreOffice Draw
MD5: 41fc86ecab2175148fb2473d57f153f3 SHA-1: 24f3390a2b86657825acf0ae21aee31010c9d20e SHA-256: 8394863427925fa6666db2ea5aa5d6c7611c4351863def7b8fa7b39b21b8fbec
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing lure. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing intent. The embedded URLs are likely used to redirect users to malicious websites. No scripts were extracted from this sample.

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://wuna.tilr.icu/uploads/2020/01/28/sosok_dijutu.pdf
    • http://mymoneybuilder.net/uploads/1/3/0/5/130550700/xepalajiwu.pdf
    • http://younglivingdaily.com/uploads/1/3/0/6/130620587/fipugarisavokul-lebitirimadegiv-jukab-tutaz.pdf
    • http://csisecurityinc.com/uploads/1/3/0/2/130289592/mator.pdf
    • http://twelvethirtyfourfilms.com/uploads/1/3/0/7/130776249/4344698.pdf
    • http://kevinsjobe.com/uploads/1/3/0/6/130621109/riwuvejuferiduju.pdf
    • http://nogenetix.com/uploads/1/3/0/6/130605422/jilipep-budidaxovi.pdf
    • http://dancinggoatsanctuary.com/uploads/1/3/0/2/130270753/130270753.html#b+braun+dialysis+machine+service+manual+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011b6.bin
f1fd30537dce95332254a3f3f256dff10e0afd51ab9da0d8f1be2a10491e89cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B6 8920 bytes

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