Analysis

  • max time kernel
    91s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-07-2023 18:12

General

  • Target

    NA_NA_21767dbf228f10exeexe_JC.exe

  • Size

    55KB

  • MD5

    21767dbf228f10a93631d065da1ad4f3

  • SHA1

    d56fb70f61780f05b1284f9059581e7c5c2a521d

  • SHA256

    ec35f4328039b1d75a207e7d59d07629ab6efe323a8ff5ed559aa412f0ee77c1

  • SHA512

    91f370eb76ac9cee96358e2d1e5945a85ae88953cec7bc7f25cf63960f0948f88f248ea6e53a6640b460bdfd72ba41885580995f7d83e9b530673aceaf64e217

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9S2U:zj+soPSMOtEvwDpj4kpmw

Score
7/10
upx

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
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\NA_NA_21767dbf228f10exeexe_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NA_NA_21767dbf228f10exeexe_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4988
    • 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:2512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    1ade509b47f8aa32e955fbdfb0ea8a1a

    SHA1

    ec4baa0b74d943cb7043ec6c506ce998e3126d7a

    SHA256

    2488b7b1a22518554c983faa0fbf5d0afd265eeb806f7b841d652bcf68173129

    SHA512

    b0584d42777a2f650b9b35cc18477bbea4d20141f1d113068f50d6a2a6fb092fcfd98e69499a538442ccc334c4665cacd588c927565563be95a0a2725f321136

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

    Filesize

    55KB

    MD5

    1ade509b47f8aa32e955fbdfb0ea8a1a

    SHA1

    ec4baa0b74d943cb7043ec6c506ce998e3126d7a

    SHA256

    2488b7b1a22518554c983faa0fbf5d0afd265eeb806f7b841d652bcf68173129

    SHA512

    b0584d42777a2f650b9b35cc18477bbea4d20141f1d113068f50d6a2a6fb092fcfd98e69499a538442ccc334c4665cacd588c927565563be95a0a2725f321136

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

    Filesize

    55KB

    MD5

    1ade509b47f8aa32e955fbdfb0ea8a1a

    SHA1

    ec4baa0b74d943cb7043ec6c506ce998e3126d7a

    SHA256

    2488b7b1a22518554c983faa0fbf5d0afd265eeb806f7b841d652bcf68173129

    SHA512

    b0584d42777a2f650b9b35cc18477bbea4d20141f1d113068f50d6a2a6fb092fcfd98e69499a538442ccc334c4665cacd588c927565563be95a0a2725f321136

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2512-152-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/2512-153-0x0000000000680000-0x0000000000686000-memory.dmp

    Filesize

    24KB

  • memory/2512-179-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4988-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4988-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4988-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4988-136-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4988-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB