Analysis

  • max time kernel
    142s
  • 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 16:52

General

  • Target

    9966c425f3e6e9_JC.exe

  • Size

    89KB

  • MD5

    9966c425f3e6e91b3e3fbdfa1c3b9b6d

  • SHA1

    549de72cfad1268f26c73d6a66168d7984c8332d

  • SHA256

    fadf7b45bf53c5cd3f00d04b72378f08b3ae3626df2c7d15a8f9b4211b0fcb16

  • SHA512

    720aeb744cbbe641859f6b58c67b1b2f76334ffbc8eb120bab7bdcadcd269078d12ba788af61d3496c5ca12ded88c8853212294a2784703657d4c0ac7dc08bb9

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDj9i4G7:zCsanOtEvwDpjL

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.

  • Drops file in System32 directory 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\9966c425f3e6e9_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\9966c425f3e6e9_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3000
    • 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:496
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    PID:3572

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    012f73d9a6d6a1154e9f87d13880828f

    SHA1

    9c6c18df8f07480e59bc9b00479e0a7d2dc982f5

    SHA256

    9fcd7f78990fd0c4a2764d1b8cce38d7d854c7f1d51f08d0d5078a4cee99b55a

    SHA512

    3e202141637800834bcaffdc29d77a83f713f0deaf1fbf8cf12615cdfea496e9f4e9a473f56735fead61f7dd6cb80673270977a417b8778e7076cc417619d0d8

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

    Filesize

    89KB

    MD5

    012f73d9a6d6a1154e9f87d13880828f

    SHA1

    9c6c18df8f07480e59bc9b00479e0a7d2dc982f5

    SHA256

    9fcd7f78990fd0c4a2764d1b8cce38d7d854c7f1d51f08d0d5078a4cee99b55a

    SHA512

    3e202141637800834bcaffdc29d77a83f713f0deaf1fbf8cf12615cdfea496e9f4e9a473f56735fead61f7dd6cb80673270977a417b8778e7076cc417619d0d8

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

    Filesize

    89KB

    MD5

    012f73d9a6d6a1154e9f87d13880828f

    SHA1

    9c6c18df8f07480e59bc9b00479e0a7d2dc982f5

    SHA256

    9fcd7f78990fd0c4a2764d1b8cce38d7d854c7f1d51f08d0d5078a4cee99b55a

    SHA512

    3e202141637800834bcaffdc29d77a83f713f0deaf1fbf8cf12615cdfea496e9f4e9a473f56735fead61f7dd6cb80673270977a417b8778e7076cc417619d0d8

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/496-153-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/496-152-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

    Filesize

    24KB

  • memory/496-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3000-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3000-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3000-135-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3000-136-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/3000-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB