Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-07-2023 18:21

General

  • Target

    a3bf939aef9de3_JC.exe

  • Size

    31KB

  • MD5

    a3bf939aef9de3acbd851d03b464bff5

  • SHA1

    32c0dd5cc60a7e52a8d9d315149fa14f433eb904

  • SHA256

    51d921897f5aa6e6881538b65faa242de61bad6849faccd1ff52f2b5eb3f2507

  • SHA512

    09a4402f91b09f63bd06adf5aba1efa523b88efa39e59ff10cb0fdaba13c1eafd174b15dac8fed2d9bcffbf1f8a40386e81663f582a8a57073ebda7294971440

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiEcIuqFwfa:bAvJCYOOvbRPDEgXNZS

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3bf939aef9de3_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a3bf939aef9de3_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4244
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      PID:4676

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    31KB

    MD5

    28aefa962b6be25221c0c845836aeb90

    SHA1

    f9c4fda31b323dc9e24cb22558ab30eb719cd6f3

    SHA256

    306abf9965ff559e07eb1b82650bf19c2f21d5c59e9512e96a35ac934f19c294

    SHA512

    6e61ae6320923d0c58de4abb4ffd867caf6a2185cc2d071cd9a604f66e79da29eb9f31ebea39191d0d97a284a366429a4691bf31bd6ff1d9d0808973359dcd41

  • C:\Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    31KB

    MD5

    28aefa962b6be25221c0c845836aeb90

    SHA1

    f9c4fda31b323dc9e24cb22558ab30eb719cd6f3

    SHA256

    306abf9965ff559e07eb1b82650bf19c2f21d5c59e9512e96a35ac934f19c294

    SHA512

    6e61ae6320923d0c58de4abb4ffd867caf6a2185cc2d071cd9a604f66e79da29eb9f31ebea39191d0d97a284a366429a4691bf31bd6ff1d9d0808973359dcd41

  • C:\Users\Admin\AppData\Local\Temp\demka.exe

    Filesize

    31KB

    MD5

    28aefa962b6be25221c0c845836aeb90

    SHA1

    f9c4fda31b323dc9e24cb22558ab30eb719cd6f3

    SHA256

    306abf9965ff559e07eb1b82650bf19c2f21d5c59e9512e96a35ac934f19c294

    SHA512

    6e61ae6320923d0c58de4abb4ffd867caf6a2185cc2d071cd9a604f66e79da29eb9f31ebea39191d0d97a284a366429a4691bf31bd6ff1d9d0808973359dcd41

  • memory/4244-133-0x0000000002340000-0x0000000002346000-memory.dmp

    Filesize

    24KB

  • memory/4244-134-0x0000000002340000-0x0000000002346000-memory.dmp

    Filesize

    24KB

  • memory/4244-135-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/4676-153-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB