Analysis

  • max time kernel
    144s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    24-05-2022 02:23

General

  • Target

    3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe

  • Size

    3.0MB

  • MD5

    9613aec7bcaf60d4ac98acbf4a1627a4

  • SHA1

    125a4cd3d0ca1e319815517412382f978ae76467

  • SHA256

    3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820

  • SHA512

    0831c34fba8015d3ca566a00528139de05b2b95d3e5ec69e1b454dba3bf12118a968869d7f4e553dc147a103dd7f42b7f6c4b1822a2c55d63a34978b918e0043

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe
    "C:\Users\Admin\AppData\Local\Temp\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3996
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4888

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe

    Filesize

    3.0MB

    MD5

    c094249efe9a74c2b2d8dd6f751da502

    SHA1

    fcb0b3cdcb924713a1de03fc4442ed7e6b80a0a9

    SHA256

    cfb6f1970d72a68f758fa867ad90afd4c32f12be2efb751d658e60aee37f51fc

    SHA512

    4adb1a6fcff5e77b9c56d728e7ee6dff57aa92bc4be63024660c8807b1a71fbb5a5a19059e45338d4cea771f1a4b1b2119c7596ed27c680a78be41250924ee43

  • C:\Users\Admin\AppData\Local\Temp\3582-490\3b923867f9312e99259ff057ae64dfa450a378bae39d0809b8dd864512bcd820.exe

    Filesize

    3.0MB

    MD5

    c094249efe9a74c2b2d8dd6f751da502

    SHA1

    fcb0b3cdcb924713a1de03fc4442ed7e6b80a0a9

    SHA256

    cfb6f1970d72a68f758fa867ad90afd4c32f12be2efb751d658e60aee37f51fc

    SHA512

    4adb1a6fcff5e77b9c56d728e7ee6dff57aa92bc4be63024660c8807b1a71fbb5a5a19059e45338d4cea771f1a4b1b2119c7596ed27c680a78be41250924ee43

  • memory/4888-130-0x0000000000000000-mapping.dmp

  • memory/4888-133-0x00000000053F0000-0x000000000548C000-memory.dmp

    Filesize

    624KB

  • memory/4888-134-0x0000000005490000-0x0000000005522000-memory.dmp

    Filesize

    584KB

  • memory/4888-135-0x0000000008070000-0x0000000008614000-memory.dmp

    Filesize

    5.6MB

  • memory/4888-136-0x00000000086A0000-0x00000000086AA000-memory.dmp

    Filesize

    40KB

  • memory/4888-137-0x0000000008970000-0x00000000089C6000-memory.dmp

    Filesize

    344KB

  • memory/4888-138-0x0000000004F9B000-0x0000000004F9F000-memory.dmp

    Filesize

    16KB