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Analysis

  • max time kernel
    141s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    17/06/2023, 01:44

General

  • Target

    0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c.exe

  • Size

    330KB

  • MD5

    c885f9ee8ec4d3b7e91959611a7fce1e

  • SHA1

    d3db0fd2da8935d8e73bebf35e9f5e247a7cb1da

  • SHA256

    0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c

  • SHA512

    7506f321d88ff385e444c49126847ecf12a357c2eab642f0048d40023d878206894b3c34be1952ef719d668b4113b5b2d6227dd0a13e6609ad876cf1b80dea99

  • SSDEEP

    6144:wYa6KK5E7iEZfPfEAsocHa8jKY8ERL7JASTG4thjjEO7zs4kXv:wYIoE2TCbh8ZAgfpjEOs5f

Malware Config

Signatures

  • AgentTesla

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

  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c.exe
    "C:\Users\Admin\AppData\Local\Temp\0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c.exe
      "C:\Users\Admin\AppData\Local\Temp\0f9d70ee323db5f11fa245c6f6f0c3d485fca200e9dbb819e95cc5597e542b3c.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsy171C.tmp\lwwuvyib.dll

    Filesize

    76KB

    MD5

    2f9e6c4d1d7b003b1c6238c89574a006

    SHA1

    fe46f5fd9d495bf61f5744d9c58d5565c0fe8daf

    SHA256

    d44c13e8e08bd9da5dbe4448b530e558b5858f31861df6c4661898e667eaad55

    SHA512

    3a24b0811565a5fb0d424e9dde7bc8ffa0b0160e2fef7180fdf6edcfa67c7717f4404049caa1fefd31139b71fbcdf3735b6ee2b9a7ab642d98c919d0c2d137b1

  • memory/1844-61-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1844-63-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1844-64-0x0000000002030000-0x0000000002060000-memory.dmp

    Filesize

    192KB

  • memory/1844-65-0x0000000004630000-0x0000000004670000-memory.dmp

    Filesize

    256KB

  • memory/1844-66-0x0000000000400000-0x0000000000441000-memory.dmp

    Filesize

    260KB

  • memory/1844-67-0x0000000004630000-0x0000000004670000-memory.dmp

    Filesize

    256KB

  • memory/1844-86-0x0000000004630000-0x0000000004670000-memory.dmp

    Filesize

    256KB