Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03b906ddf680f47…

MALICIOUS

PDF

73.6 KB Authoring application: Karbon
MD5: 7968f8369826b7d675c520f10be506b7 SHA-1: 0806868445fd8e1ffd4ea41f15b4570dff38a83c SHA-256: a03b906ddf680f47e6654e368f560ab1ac09efa75f5a32160adab1597eb6f0f2
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, identified by the PDF_SEO_LINK_FARM heuristic. This technique is often used for SEO manipulation or to redirect users to malicious sites. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. No scripts were extracted, limiting the analysis of direct payload execution.

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://smgoldrup.com/uploads/1/3/0/7/130740571/bodaruto-nelefu-buwor-sadovepokixej.pdf
    • http://pcotechnologies.com/uploads/1/3/0/6/130640179/xokitivu_dubunive_gugapipu_pidasijopezomer.pdf
    • http://pandlexpress.com/uploads/1/3/0/2/130289201/5636760.pdf
    • http://ruefrancaise.com/uploads/1/3/0/6/130605001/kelof-notobobumob-jigavonamot.pdf
    • http://kinetickneadsmassagetherapy.com/uploads/1/3/0/7/130775528/60cc774b.pdf
    • http://zambiasafarihunting.com/uploads/1/3/0/7/130776406/130776406.html#essential+play+therapy+techniques+time-tested+approaches+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011e7.bin
2ab828ba8a4c01e8fe74d10fcbe7beb62b536850b4638f9fb5feae5c4fdf1fba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11E7 8512 bytes

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