Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 05:17

General

  • Target

    af8983f7b686a043ffc12cbbf3a03809853651304817adbfa9f3b5f4d9890835.exe

  • Size

    88KB

  • MD5

    ce8f25bea2d697253fca83276f73dd72

  • SHA1

    3099a4b94f466dd046510b2a0cc67f79d00f9638

  • SHA256

    af8983f7b686a043ffc12cbbf3a03809853651304817adbfa9f3b5f4d9890835

  • SHA512

    4103c00b956ed301e8956f347e48f17349c6ca6bf66e3a2bae2067128c404b6e610da0fdc1aa5e660b645095a2c0d8e0953e908a3a674531962029539cb50811

  • SSDEEP

    768:3DFIbMrddaqnObOasGEwU8Z1Rbe2kjEQJQ1H7a8zFkzqcwORyrI:BIAeiCU8Z1QjEQJecwOQU

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 52 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\af8983f7b686a043ffc12cbbf3a03809853651304817adbfa9f3b5f4d9890835.exe
    "C:\Users\Admin\AppData\Local\Temp\af8983f7b686a043ffc12cbbf3a03809853651304817adbfa9f3b5f4d9890835.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1440
    • C:\Users\Admin\geuroem.exe
      "C:\Users\Admin\geuroem.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:788

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Hidden Files and Directories

1
T1158

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\geuroem.exe
    Filesize

    88KB

    MD5

    7c1c3d5286891773e810201d5c7be669

    SHA1

    57fa8a19acdc2a9fb14c8c17dda4e11d888d12df

    SHA256

    1a7e12d465202f13d921ea01e4cd93c98814f81726e25c5ce68d350d2991aef4

    SHA512

    d8269986a889ec2b7a52384c6f76b94fd774235e0d14cca875b55b7e089c0d31fb0ba0d0733fda31a590cc7c739ffc6749ee60009c9bbabace228ed8bc046216

  • C:\Users\Admin\geuroem.exe
    Filesize

    88KB

    MD5

    7c1c3d5286891773e810201d5c7be669

    SHA1

    57fa8a19acdc2a9fb14c8c17dda4e11d888d12df

    SHA256

    1a7e12d465202f13d921ea01e4cd93c98814f81726e25c5ce68d350d2991aef4

    SHA512

    d8269986a889ec2b7a52384c6f76b94fd774235e0d14cca875b55b7e089c0d31fb0ba0d0733fda31a590cc7c739ffc6749ee60009c9bbabace228ed8bc046216

  • \Users\Admin\geuroem.exe
    Filesize

    88KB

    MD5

    7c1c3d5286891773e810201d5c7be669

    SHA1

    57fa8a19acdc2a9fb14c8c17dda4e11d888d12df

    SHA256

    1a7e12d465202f13d921ea01e4cd93c98814f81726e25c5ce68d350d2991aef4

    SHA512

    d8269986a889ec2b7a52384c6f76b94fd774235e0d14cca875b55b7e089c0d31fb0ba0d0733fda31a590cc7c739ffc6749ee60009c9bbabace228ed8bc046216

  • \Users\Admin\geuroem.exe
    Filesize

    88KB

    MD5

    7c1c3d5286891773e810201d5c7be669

    SHA1

    57fa8a19acdc2a9fb14c8c17dda4e11d888d12df

    SHA256

    1a7e12d465202f13d921ea01e4cd93c98814f81726e25c5ce68d350d2991aef4

    SHA512

    d8269986a889ec2b7a52384c6f76b94fd774235e0d14cca875b55b7e089c0d31fb0ba0d0733fda31a590cc7c739ffc6749ee60009c9bbabace228ed8bc046216

  • memory/788-59-0x0000000000000000-mapping.dmp
  • memory/1440-56-0x0000000076181000-0x0000000076183000-memory.dmp
    Filesize

    8KB