Analysis

  • max time kernel
    123s
  • max time network
    128s
  • 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, 18:00

General

  • Target

    a131627d46f044_JC.exe

  • Size

    60KB

  • MD5

    a131627d46f0446c4bb52c5f8f34ee62

  • SHA1

    c59b62b84bad0fc94611d9f0e2e50443a30d416b

  • SHA256

    6ef64c032a37f3cfbe590fce0b01578b96b6c26f4cf827e2ef8a30c1c74ae4f8

  • SHA512

    32c1f5b0e0f98ded1039d8350635cb0656c31bc64824bd68ec38ac5d45bb57007d691602443c380baf32ec223da590e9819e431ea33c8eec29cfcdf8c33dbd49

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HyCyh7vtRJ4BqKb1cKtqPW:vCjsIOtEvwDpj5Hv0E

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\a131627d46f044_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a131627d46f044_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:388
    • 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:3628

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    379174c1718e7c6e4cd47ca5311865e2

    SHA1

    2c98fea03ac629f6d56f14d11e5c02d11a213928

    SHA256

    0159437855c8317e5bc7374802b3de8b1340190abc4670e97d77c17790a34824

    SHA512

    ca73227aa75ea52859c098f61fa4652979fd297e70b0c6c6fa0b8fdb7cc3c1c5e4a1977beafbb4ee91c3b69758a8683b1b76a9d557cf8e4838735e80cb520d16

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

    Filesize

    61KB

    MD5

    379174c1718e7c6e4cd47ca5311865e2

    SHA1

    2c98fea03ac629f6d56f14d11e5c02d11a213928

    SHA256

    0159437855c8317e5bc7374802b3de8b1340190abc4670e97d77c17790a34824

    SHA512

    ca73227aa75ea52859c098f61fa4652979fd297e70b0c6c6fa0b8fdb7cc3c1c5e4a1977beafbb4ee91c3b69758a8683b1b76a9d557cf8e4838735e80cb520d16

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

    Filesize

    61KB

    MD5

    379174c1718e7c6e4cd47ca5311865e2

    SHA1

    2c98fea03ac629f6d56f14d11e5c02d11a213928

    SHA256

    0159437855c8317e5bc7374802b3de8b1340190abc4670e97d77c17790a34824

    SHA512

    ca73227aa75ea52859c098f61fa4652979fd297e70b0c6c6fa0b8fdb7cc3c1c5e4a1977beafbb4ee91c3b69758a8683b1b76a9d557cf8e4838735e80cb520d16

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/388-133-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/388-134-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/388-135-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/3628-150-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3628-151-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB