Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f2489caa1aacf64…

MALICIOUS

PDF

48.5 KB Authoring application: SWFTools
MD5: 0e4113fe76389d717af59121a95996bf SHA-1: 6cfd6fa834d8b51c729fed077b31b6660ccb0168 SHA-256: 8f2489caa1aacf64b6bd054a2959c837c821317b68c3924c63c903dd86ac887b
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a link farm with multiple external URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the presence of a visual download button lure further indicate a phishing or malicious download attempt. The embedded URLs are likely used to redirect users to malicious content or further stages of an attack.

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://nevenann.com/uploads/1/3/0/4/130483572/e525ce95d.pdf
    • http://koj.musc-media.xyz/uploads/2020/01/28/261085.pdf
    • http://advancedsteeldetailingltd.com/uploads/1/3/0/6/130639017/67cfd8d9.pdf
    • http://shardexplorers.com/uploads/1/3/0/7/130738794/91e01aa484.pdf
    • http://agirlfromodisha.com/uploads/1/3/0/2/130272582/2219480.pdf
    • http://michelledabundo.com/uploads/1/3/0/5/130551319/rigazutigosiv-dademebe-bovijif.pdf
    • http://301barbershop.com/uploads/1/3/0/6/130621719/podus_sadeba_sidibisewisemez.pdf
    • http://nevo-ins.com/uploads/1/3/0/2/130272233/9ece4eb772f4.pdf
    • http://bartolomeilaw.com/uploads/1/3/0/7/130739850/130739850.html#basier+square+font

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011ed.bin
c34b6c524b2dbfcd8031176827ef0710671d037720bfbfdca5370c940597df8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11ED 9320 bytes

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