Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-10-2024 06:34

General

  • Target

    Appt. Letter-SCM2403795.pdf.exe

  • Size

    1.2MB

  • MD5

    0aa90b060df8489a4f57fae9a9e7d050

  • SHA1

    0e63264bbd96091f6fd5ad6fc3826a28a6979bb9

  • SHA256

    181d9736138c254a9fa190542fd53cfc314ba0ceb6d67323ab271a99fc080416

  • SHA512

    1eec467dfd4d1ab106ddc7fbee0517ad343abaeb583ae93cddaef5ba3bda43089bc902285d0eb5772e41be5ebf7539f62a2255a5dfbc9badeea7c586003e0942

  • SSDEEP

    24576:ffmMv6Ckr7Mny5QLFtQvgCT3p5kGzs4bIWtk/Ahe5usChkdI:f3v+7/5QLFkJLpyGwOkQhs6kdI

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Appt. Letter-SCM2403795.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Appt. Letter-SCM2403795.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Users\Admin\AppData\Local\Temp\Appt. Letter-SCM2403795.pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3280
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 752
      2⤵
      • Program crash
      PID:2156
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4928 -ip 4928
    1⤵
      PID:4544

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3280-47-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-1047-0x00000000070A0000-0x00000000070AA000-memory.dmp

      Filesize

      40KB

    • memory/3280-4-0x0000000000400000-0x0000000000446000-memory.dmp

      Filesize

      280KB

    • memory/3280-6-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

      Filesize

      2.0MB

    • memory/3280-5-0x0000000000400000-0x0000000000446000-memory.dmp

      Filesize

      280KB

    • memory/3280-7-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

      Filesize

      2.0MB

    • memory/3280-8-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

      Filesize

      2.0MB

    • memory/3280-9-0x0000000005800000-0x0000000005854000-memory.dmp

      Filesize

      336KB

    • memory/3280-10-0x0000000005FB0000-0x0000000006554000-memory.dmp

      Filesize

      5.6MB

    • memory/3280-11-0x0000000005890000-0x00000000058E2000-memory.dmp

      Filesize

      328KB

    • memory/3280-63-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-71-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-69-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-67-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-65-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-61-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-1048-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

      Filesize

      2.0MB

    • memory/3280-57-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-55-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-53-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-52-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-49-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-41-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-3-0x0000000000400000-0x0000000000446000-memory.dmp

      Filesize

      280KB

    • memory/3280-59-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-39-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-38-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-35-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-33-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-31-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-29-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-27-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-25-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-23-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-21-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-19-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-17-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-15-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-13-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-12-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-43-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/3280-1044-0x0000000005970000-0x00000000059D6000-memory.dmp

      Filesize

      408KB

    • memory/3280-1045-0x0000000007040000-0x0000000007090000-memory.dmp

      Filesize

      320KB

    • memory/3280-1046-0x0000000007130000-0x00000000071C2000-memory.dmp

      Filesize

      584KB

    • memory/3280-45-0x0000000005890000-0x00000000058DC000-memory.dmp

      Filesize

      304KB

    • memory/4928-2-0x00007FFBA0550000-0x00007FFBA0745000-memory.dmp

      Filesize

      2.0MB