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Analysis

  • max time kernel
    140s
  • max time network
    147s
  • 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

    a3bec9fb7bcb83_JC.exe

  • Size

    35KB

  • MD5

    a3bec9fb7bcb83d090fda4b2d9d6d1b6

  • SHA1

    69951b375a0741ce41bc815a5f91592115329f19

  • SHA256

    bc536dad2849c890546ff3c195df0f341c7b04f97fcd1d4e08fe1385b3f2643c

  • SHA512

    e6a8f44bd22871d14833b98650625f4b4abdb1c0dc9ffb514e6ca71a61dceb545aca9a67def4ca364c46e0ef7a50b8eed85312e8b3b22ce0b93a83372ae5f515

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjxgqAhqOMpmTNAfu:ZzFbxmLPWQMOtEvwDpjx0qrmGG

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3bec9fb7bcb83_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a3bec9fb7bcb83_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    35KB

    MD5

    803e7639f5d495cd89697b39db551cb4

    SHA1

    39c4d260c5d7921fe8aed833c43267fd4fff9e5c

    SHA256

    9a9a64128416b2ad3d8df6caa154ba4a2993b368a42e71145253d854cba3428d

    SHA512

    9b2a724d9c8953184d7e3c66dc6fea5bf84443f86e9eb5396a5be8ac026757cfa7e3eaed100c9113db34799155800262f30d437951606b5bc9f870721d8e23c8

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

    Filesize

    35KB

    MD5

    803e7639f5d495cd89697b39db551cb4

    SHA1

    39c4d260c5d7921fe8aed833c43267fd4fff9e5c

    SHA256

    9a9a64128416b2ad3d8df6caa154ba4a2993b368a42e71145253d854cba3428d

    SHA512

    9b2a724d9c8953184d7e3c66dc6fea5bf84443f86e9eb5396a5be8ac026757cfa7e3eaed100c9113db34799155800262f30d437951606b5bc9f870721d8e23c8

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

    Filesize

    35KB

    MD5

    803e7639f5d495cd89697b39db551cb4

    SHA1

    39c4d260c5d7921fe8aed833c43267fd4fff9e5c

    SHA256

    9a9a64128416b2ad3d8df6caa154ba4a2993b368a42e71145253d854cba3428d

    SHA512

    9b2a724d9c8953184d7e3c66dc6fea5bf84443f86e9eb5396a5be8ac026757cfa7e3eaed100c9113db34799155800262f30d437951606b5bc9f870721d8e23c8

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1028-151-0x0000000000460000-0x00000000004A0000-memory.dmp

    Filesize

    256KB

  • memory/1028-154-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1028-153-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/2104-133-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2104-134-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/2104-135-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/2104-136-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/2104-150-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB