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Analysis

  • max time kernel
    147s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2022, 15:55

General

  • Target

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe

  • Size

    399KB

  • MD5

    fcd741cfc67a456ea3ab81d9919ae5fd

  • SHA1

    265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

  • SHA256

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

  • SHA512

    b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

  • SSDEEP

    6144:BBgh/58KGip9lmh0UwwDdxtPw13OyhFR8uHwqVGfOjB3RDnVh7WQ:BBMmKGnhDT+JlCIXRDnfWQ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • UPX packed file 7 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • AutoIT Executable 4 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe
    "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:872
    • C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe
      "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4984
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3124
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3112
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3112 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4380
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3112 CREDAT:82950 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3860
      • C:\Windows\svcr.exe
        "C:\Windows\svcr.exe" "C:\Users\Admin\AppData\Local\Temp\990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Windows\svcr.exe
          "C:\Windows\svcr.exe"
          4⤵
          • Executes dropped EXE
          • Modifies Installed Components in the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4092
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4304
            • C:\Program Files\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
              6⤵
              • Modifies Internet Explorer settings
              PID:3720

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    520071a63bb5e2038486cd0ce14055b1

    SHA1

    752cfb61bbe3ae1e2c2609c53aeee510661a59ed

    SHA256

    f8a989e9cf1fe0f0000c795537122a3c727e3b570b66582bfb62d9bbae4b20f8

    SHA512

    6f0131c9e0943c6a13d52a7525e1c592c95db868bf2dd21a8a37254150a239748985cc31518d0c4844bebfc5613feee6857b5debfbbbd6ed4539cd5e494ebbb2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    7c2220453f4d8db00f49dd2e01403199

    SHA1

    3bbc94a0fba7a0a0afff28acdbce986c12e7ce4f

    SHA256

    0d55e7b3741713ef7bab183095c26581adc6549dc9e9f1e176a509b8bdfa94f6

    SHA512

    9d7ba7b424028eb504594aad93254272f600c8a023282c0b9269e5cc458833d6e94a6f3a94d4b0a729041500003ea86b85888bf9d831cc97329dcd112263f3af

  • C:\Windows\svcr.exe

    Filesize

    399KB

    MD5

    fcd741cfc67a456ea3ab81d9919ae5fd

    SHA1

    265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

    SHA256

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

    SHA512

    b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

  • C:\Windows\svcr.exe

    Filesize

    399KB

    MD5

    fcd741cfc67a456ea3ab81d9919ae5fd

    SHA1

    265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

    SHA256

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

    SHA512

    b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

  • C:\Windows\svcr.exe

    Filesize

    399KB

    MD5

    fcd741cfc67a456ea3ab81d9919ae5fd

    SHA1

    265e7e07cdf5f4ac9bbd14750d854c9038ad3ac5

    SHA256

    990131b2a5001c90431569f5aa44b8fbc4860bd8640645c8842c5bcf61ea2a40

    SHA512

    b98a7dbfe4b3bc900d292f215756b4db61e8a2e774f63bb255956d9989a8d55d6d900fe5d8727e4f4f265f0de761795ff622bb108dd0cb814ecbf46d5fea0063

  • memory/872-137-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/872-133-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/4092-150-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4092-159-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4092-152-0x0000000010410000-0x000000001042E000-memory.dmp

    Filesize

    120KB

  • memory/4616-144-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/4616-149-0x0000000000400000-0x00000000004A8000-memory.dmp

    Filesize

    672KB

  • memory/4984-138-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4984-142-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4984-136-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/4984-134-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB