Analysis

  • max time kernel
    161s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 07:20

General

  • Target

    a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe

  • Size

    1.1MB

  • MD5

    df3eb70752175bd0f8391f9524874fa4

  • SHA1

    0006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9

  • SHA256

    a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e

  • SHA512

    2feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc

  • SSDEEP

    24576:xf9I2Wjiv0j/yaMctr1SdWHJXLr1TO+qoDJd46:xFNWjiceCrkkpXP1fqWZ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • 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 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 30 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
    "C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
      C:\Users\Admin\AppData\Local\Temp\a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e.exe
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
        "C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1848
        • C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
          C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          PID:2776

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
    Filesize

    1.1MB

    MD5

    df3eb70752175bd0f8391f9524874fa4

    SHA1

    0006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9

    SHA256

    a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e

    SHA512

    2feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc

  • C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
    Filesize

    1.1MB

    MD5

    df3eb70752175bd0f8391f9524874fa4

    SHA1

    0006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9

    SHA256

    a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e

    SHA512

    2feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc

  • C:\Users\Admin\AppData\Local\Microsoft\mvchost.exe
    Filesize

    1.1MB

    MD5

    df3eb70752175bd0f8391f9524874fa4

    SHA1

    0006c5e7d2681a7d8fd5e3bafc7be27bd6a9b5f9

    SHA256

    a378103c8f8f3766e1976a46e70d4c7f5c514fa08e04ae003b670c6bc1e59a0e

    SHA512

    2feac4e3451c5bf6661d4d9a47827e66ef4de9781649667af2895059f29076304f684b6624ac73190ff90bf959d033cd57e3d45749ee8e3486f1391c04bbcebc

  • memory/1172-148-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1172-133-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1172-134-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1172-132-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1172-149-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1848-169-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1848-154-0x0000000000400000-0x00000000008B7000-memory.dmp
    Filesize

    4.7MB

  • memory/1848-150-0x0000000000000000-mapping.dmp
  • memory/2776-155-0x0000000000000000-mapping.dmp
  • memory/2880-137-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-147-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-146-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-144-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-143-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-142-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-140-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-138-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-136-0x0000000000400000-0x000000000042C000-memory.dmp
    Filesize

    176KB

  • memory/2880-135-0x0000000000000000-mapping.dmp