Analysis

  • max time kernel
    152s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 05:41

General

  • Target

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8.exe

  • Size

    184KB

  • MD5

    17255f13e6914fbc1dd9dec40a0f05cd

  • SHA1

    69142df7d8539ceec58cd37b5b2ed4197de709ed

  • SHA256

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8

  • SHA512

    fde2cf558b3dea7bd8b7bc6afe9931fe7c7051834405196067965a53ebdd5865fe46927b57b3857e21546ff8d673628f06981bd4787057b5c1df5216287659f6

  • SSDEEP

    3072:+yXt9mTrJfPB6y0TwqjoL0sMjHicmDJij4X0PQgyrkEp92QObfOCLn2O:D4FfZ6zTwhmjsO4XcQ1F9pObp2O

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 59 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8.exe
    "C:\Users\Admin\AppData\Local\Temp\eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\Users\Admin\AppData\Local\Temp\eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8.exe
      C:\Users\Admin\AppData\Local\Temp\eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:796
      • C:\Users\Admin\AppData\Roaming\wpcdvml.exe
        C:\Users\Admin\AppData\Roaming\wpcdvml.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1064
        • C:\Users\Admin\AppData\Roaming\wpcdvml.exe
          C:\Users\Admin\AppData\Roaming\wpcdvml.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1924
          • C:\Windows\System32\vssadmin.exe
            "C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet
            5⤵
            • Interacts with shadow copies
            PID:856
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EACEEF~1.EXE >> NUL
        3⤵
        • Deletes itself
        PID:1192
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1636

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\wpcdvml.exe
    Filesize

    184KB

    MD5

    17255f13e6914fbc1dd9dec40a0f05cd

    SHA1

    69142df7d8539ceec58cd37b5b2ed4197de709ed

    SHA256

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8

    SHA512

    fde2cf558b3dea7bd8b7bc6afe9931fe7c7051834405196067965a53ebdd5865fe46927b57b3857e21546ff8d673628f06981bd4787057b5c1df5216287659f6

  • C:\Users\Admin\AppData\Roaming\wpcdvml.exe
    Filesize

    184KB

    MD5

    17255f13e6914fbc1dd9dec40a0f05cd

    SHA1

    69142df7d8539ceec58cd37b5b2ed4197de709ed

    SHA256

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8

    SHA512

    fde2cf558b3dea7bd8b7bc6afe9931fe7c7051834405196067965a53ebdd5865fe46927b57b3857e21546ff8d673628f06981bd4787057b5c1df5216287659f6

  • C:\Users\Admin\AppData\Roaming\wpcdvml.exe
    Filesize

    184KB

    MD5

    17255f13e6914fbc1dd9dec40a0f05cd

    SHA1

    69142df7d8539ceec58cd37b5b2ed4197de709ed

    SHA256

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8

    SHA512

    fde2cf558b3dea7bd8b7bc6afe9931fe7c7051834405196067965a53ebdd5865fe46927b57b3857e21546ff8d673628f06981bd4787057b5c1df5216287659f6

  • \Users\Admin\AppData\Roaming\wpcdvml.exe
    Filesize

    184KB

    MD5

    17255f13e6914fbc1dd9dec40a0f05cd

    SHA1

    69142df7d8539ceec58cd37b5b2ed4197de709ed

    SHA256

    eaceefa415070bbdd2c0f66d51e3161ac6cf9039f284199f6b610f83ce2f24d8

    SHA512

    fde2cf558b3dea7bd8b7bc6afe9931fe7c7051834405196067965a53ebdd5865fe46927b57b3857e21546ff8d673628f06981bd4787057b5c1df5216287659f6

  • memory/796-58-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-68-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-60-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-65-0x0000000000425911-mapping.dmp
  • memory/796-92-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-69-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-55-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-56-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-64-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/796-62-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/856-94-0x0000000000000000-mapping.dmp
  • memory/1064-71-0x0000000000000000-mapping.dmp
  • memory/1192-91-0x0000000000000000-mapping.dmp
  • memory/1536-54-0x00000000764C1000-0x00000000764C3000-memory.dmp
    Filesize

    8KB

  • memory/1924-90-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB

  • memory/1924-84-0x0000000000425911-mapping.dmp
  • memory/1924-93-0x0000000000400000-0x0000000000467000-memory.dmp
    Filesize

    412KB