Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2023, 15:00

General

  • Target

    f484c9093a7046d53d4856234679e3a9f4d92064b41d6fa3121129758482cdad.exe

  • Size

    2.2MB

  • MD5

    3f7bc6e3931deadf8544cf8c9c70054b

  • SHA1

    bf12dabc90ab9fe6edd04768a156a00e2c7eca47

  • SHA256

    f484c9093a7046d53d4856234679e3a9f4d92064b41d6fa3121129758482cdad

  • SHA512

    79085b3fcbe847eb85227d79b32769eeb4f826747f54b8147db7d6e09fbe14e160094b5c3b205ed9a501791a9c6ece1b2732b635e64a86dcb85327da9d9efc4c

  • SSDEEP

    49152:wTG4Q/0YAaVo8oP3KpuZj3QcG2jGnYALhbgG:wK4XK

Score
10/10
upx

Malware Config

Signatures

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Downloads MZ/PE file
  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 8 IoCs

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

  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 26 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Modifies data under HKEY_USERS 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:580
      • C:\Windows\Fonts\djoin.exe
        "C:\Windows\Fonts\djoin.exe"
        2⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Checks SCSI registry key(s)
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4104
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
      • Suspicious use of NtCreateUserProcessOtherParentProcess
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Users\Admin\AppData\Local\Temp\f484c9093a7046d53d4856234679e3a9f4d92064b41d6fa3121129758482cdad.exe
        "C:\Users\Admin\AppData\Local\Temp\f484c9093a7046d53d4856234679e3a9f4d92064b41d6fa3121129758482cdad.exe"
        2⤵
        • Checks computer location settings
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:756
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Users\Admin\AppData\Local\Temp\f484c9093a7046d53d4856234679e3a9f4d92064b41d6fa3121129758482cdad.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1040
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 1
            4⤵
            • Delays execution with timeout.exe
            PID:4316
    • C:\Windows\Syswow64\3439c374
      C:\Windows\Syswow64\3439c374
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Windows\Syswow64\3439c374"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1360
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 1
          3⤵
          • Delays execution with timeout.exe
          PID:2452

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\83401e62.tmp

      Filesize

      11.6MB

      MD5

      5244c87dbafa1f764b258766005dea73

      SHA1

      84cb8b4fb3e0910cfecfb31b6fa54c16d940e703

      SHA256

      077035f93ddc3ac5a8b5631d43826baf7722256eb1c4716b3c2567f07379bc40

      SHA512

      54d64d32e73e2752cdf9a110db17ad64574eb072df0ed0dc34a7e4bc469c03aa79ef7d45465e279ef85d5fc6b33a1b750b181476cdea7ea98898ddba9aa60438

    • C:\Windows\Fonts\djoin.exe

      Filesize

      74KB

      MD5

      1bc9245d12077f2e422c84541d62bed9

      SHA1

      01c877005e353a5202b2250b0277bb900d71753f

      SHA256

      f5ee00bf7cfd7bf7504597d0106d1fa2c8cebfc7b693dc18e6e10f2864fad690

      SHA512

      23d6d5217d2113909d69c769a41a39bf824101ebf4424f52f8adf19e807d9ff392b5b2e29607d3659e22c513a024eb6d46e85dc73e89b443bba74e497626e987

    • C:\Windows\Fonts\djoin.exe

      Filesize

      74KB

      MD5

      1bc9245d12077f2e422c84541d62bed9

      SHA1

      01c877005e353a5202b2250b0277bb900d71753f

      SHA256

      f5ee00bf7cfd7bf7504597d0106d1fa2c8cebfc7b693dc18e6e10f2864fad690

      SHA512

      23d6d5217d2113909d69c769a41a39bf824101ebf4424f52f8adf19e807d9ff392b5b2e29607d3659e22c513a024eb6d46e85dc73e89b443bba74e497626e987

    • C:\Windows\SysWOW64\3439c374

      Filesize

      2.2MB

      MD5

      86bb0d4a21d7757f489893b3583e3fc5

      SHA1

      daf80a18e9d0a7b141a1673a356568bf397cea6d

      SHA256

      6021b8d33c7c3d943a0a73981969638227cf5cff8c9242b0c4c6bc815fc36430

      SHA512

      9adfd874bbfab004ecdecfaa6df956cc032c06096b4b25f00d7b51a22ecebc6b268e4ddfe0fd3aa86a114cf58e8aa36228153a0b1f00d2bee1a452903e662048

    • C:\Windows\SysWOW64\3439c374

      Filesize

      2.2MB

      MD5

      86bb0d4a21d7757f489893b3583e3fc5

      SHA1

      daf80a18e9d0a7b141a1673a356568bf397cea6d

      SHA256

      6021b8d33c7c3d943a0a73981969638227cf5cff8c9242b0c4c6bc815fc36430

      SHA512

      9adfd874bbfab004ecdecfaa6df956cc032c06096b4b25f00d7b51a22ecebc6b268e4ddfe0fd3aa86a114cf58e8aa36228153a0b1f00d2bee1a452903e662048

    • memory/580-70-0x000001866E9B0000-0x000001866E9B1000-memory.dmp

      Filesize

      4KB

    • memory/580-31-0x000001866E950000-0x000001866E978000-memory.dmp

      Filesize

      160KB

    • memory/580-30-0x000001866E9B0000-0x000001866E9B1000-memory.dmp

      Filesize

      4KB

    • memory/756-24-0x0000000000EC0000-0x0000000000F49000-memory.dmp

      Filesize

      548KB

    • memory/756-0-0x0000000000EC0000-0x0000000000F49000-memory.dmp

      Filesize

      548KB

    • memory/756-38-0x0000000000EC0000-0x0000000000F49000-memory.dmp

      Filesize

      548KB

    • memory/2496-141-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-145-0x0000000002C00000-0x0000000002C10000-memory.dmp

      Filesize

      64KB

    • memory/2496-202-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-200-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-197-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-195-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-189-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-13-0x0000000002B50000-0x0000000002B53000-memory.dmp

      Filesize

      12KB

    • memory/2496-182-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-65-0x0000000008980000-0x0000000008A79000-memory.dmp

      Filesize

      996KB

    • memory/2496-66-0x0000000002B80000-0x0000000002B81000-memory.dmp

      Filesize

      4KB

    • memory/2496-184-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-175-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-173-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-19-0x0000000002B80000-0x0000000002B81000-memory.dmp

      Filesize

      4KB

    • memory/2496-171-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-168-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-164-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-109-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-162-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-160-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-158-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-157-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-155-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-148-0x0000000002C00000-0x0000000002C10000-memory.dmp

      Filesize

      64KB

    • memory/2496-79-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-150-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-85-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-86-0x0000000002950000-0x0000000002960000-memory.dmp

      Filesize

      64KB

    • memory/2496-84-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-90-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-151-0x0000000002B20000-0x0000000002B30000-memory.dmp

      Filesize

      64KB

    • memory/2496-91-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-93-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-108-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-153-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-87-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-82-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-95-0x0000000002970000-0x0000000002980000-memory.dmp

      Filesize

      64KB

    • memory/2496-149-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-98-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-97-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-99-0x0000000002970000-0x0000000002980000-memory.dmp

      Filesize

      64KB

    • memory/2496-100-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-102-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-147-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-103-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-106-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-88-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-111-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-146-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-113-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-112-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-114-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-110-0x0000000002970000-0x0000000002980000-memory.dmp

      Filesize

      64KB

    • memory/2496-116-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-117-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-118-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-115-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-18-0x0000000008980000-0x0000000008A79000-memory.dmp

      Filesize

      996KB

    • memory/2496-10-0x0000000002B50000-0x0000000002B53000-memory.dmp

      Filesize

      12KB

    • memory/2496-144-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-132-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-133-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-134-0x0000000002B20000-0x0000000002B30000-memory.dmp

      Filesize

      64KB

    • memory/2496-135-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-136-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-138-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-137-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-139-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/2496-143-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/4104-20-0x0000016C371E0000-0x0000016C371E3000-memory.dmp

      Filesize

      12KB

    • memory/4104-21-0x0000016C37470000-0x0000016C3753B000-memory.dmp

      Filesize

      812KB

    • memory/4104-23-0x0000016C37470000-0x0000016C3753B000-memory.dmp

      Filesize

      812KB

    • memory/4104-76-0x0000016C39D30000-0x0000016C39EF5000-memory.dmp

      Filesize

      1.8MB

    • memory/4104-104-0x0000016C39B60000-0x0000016C39B62000-memory.dmp

      Filesize

      8KB

    • memory/4104-96-0x0000016C39D30000-0x0000016C39EF5000-memory.dmp

      Filesize

      1.8MB

    • memory/4104-94-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/4104-92-0x0000016C395B0000-0x0000016C395B1000-memory.dmp

      Filesize

      4KB

    • memory/4104-83-0x0000016C395A0000-0x0000016C395A1000-memory.dmp

      Filesize

      4KB

    • memory/4104-81-0x0000016C39C80000-0x0000016C39C81000-memory.dmp

      Filesize

      4KB

    • memory/4104-80-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/4104-75-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/4104-127-0x0000016C39D30000-0x0000016C39EF5000-memory.dmp

      Filesize

      1.8MB

    • memory/4104-78-0x0000016C39C80000-0x0000016C39C81000-memory.dmp

      Filesize

      4KB

    • memory/4104-26-0x00007FFB22320000-0x00007FFB22330000-memory.dmp

      Filesize

      64KB

    • memory/4104-72-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/4104-73-0x0000016C39380000-0x0000016C39381000-memory.dmp

      Filesize

      4KB

    • memory/4104-71-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/4104-69-0x0000016C37580000-0x0000016C37581000-memory.dmp

      Filesize

      4KB

    • memory/4104-68-0x0000016C37470000-0x0000016C3753B000-memory.dmp

      Filesize

      812KB

    • memory/4104-25-0x0000016C37580000-0x0000016C37581000-memory.dmp

      Filesize

      4KB

    • memory/4104-64-0x00007FFB22320000-0x00007FFB22330000-memory.dmp

      Filesize

      64KB

    • memory/4104-77-0x0000016C39B60000-0x0000016C39B62000-memory.dmp

      Filesize

      8KB

    • memory/4104-74-0x0000016C39590000-0x0000016C39591000-memory.dmp

      Filesize

      4KB

    • memory/5088-28-0x0000000000010000-0x0000000000099000-memory.dmp

      Filesize

      548KB

    • memory/5088-67-0x0000000000010000-0x0000000000099000-memory.dmp

      Filesize

      548KB

    • memory/5088-4-0x0000000000010000-0x0000000000099000-memory.dmp

      Filesize

      548KB