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Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/07/2023, 09:14

General

  • Target

    640d8f42bc765cexeexeexeex.exe

  • Size

    49KB

  • MD5

    640d8f42bc765cbb6310f8565273489d

  • SHA1

    3dd582f3d247677a084cb8f65a27427a1c330808

  • SHA256

    171de8e3a4ec581371697e2bfe7f1eb49f3eb9331f054bf57a76e402793b714c

  • SHA512

    2fdfd7ff4c7063d870258597b372b612d5ab93a912d88d76ce8dd9886cab92eef55b482ffbb27e760dd3c9c06b80d3eb0a916df5161050068f4c5bfdfc48e5cb

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7q4:zj+soPSMOtEvwDpj4kT

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 7 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\640d8f42bc765cexeexeexeex.exe
    "C:\Users\Admin\AppData\Local\Temp\640d8f42bc765cexeexeexeex.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4672
    • 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:3064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    7ead81e56719a873231a6dfaf8637297

    SHA1

    e10971a44384aca950659136496085ee69b9982b

    SHA256

    c4bfa33cf4aefc569738933686105907203869c5d6a2c98e2669025e5c813e7e

    SHA512

    18c82b27993b237cbb06ac6d677fefd1d7b30b9d08c9d2edc8f6926ff67864f236d89243e4f528eb23754dfdf6b668598f0ffa3476931c58a1c4d7bc87d732e7

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

    Filesize

    49KB

    MD5

    7ead81e56719a873231a6dfaf8637297

    SHA1

    e10971a44384aca950659136496085ee69b9982b

    SHA256

    c4bfa33cf4aefc569738933686105907203869c5d6a2c98e2669025e5c813e7e

    SHA512

    18c82b27993b237cbb06ac6d677fefd1d7b30b9d08c9d2edc8f6926ff67864f236d89243e4f528eb23754dfdf6b668598f0ffa3476931c58a1c4d7bc87d732e7

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

    Filesize

    49KB

    MD5

    7ead81e56719a873231a6dfaf8637297

    SHA1

    e10971a44384aca950659136496085ee69b9982b

    SHA256

    c4bfa33cf4aefc569738933686105907203869c5d6a2c98e2669025e5c813e7e

    SHA512

    18c82b27993b237cbb06ac6d677fefd1d7b30b9d08c9d2edc8f6926ff67864f236d89243e4f528eb23754dfdf6b668598f0ffa3476931c58a1c4d7bc87d732e7

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3064-149-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3064-152-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3064-178-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4672-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4672-134-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/4672-135-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/4672-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB