Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-05-2024 02:40

General

  • Target

    5c8aee7bbd1b09e31178be12bc847c30_NeikiAnalytics.exe

  • Size

    952KB

  • MD5

    5c8aee7bbd1b09e31178be12bc847c30

  • SHA1

    5cc34074f6c74cb0cbb3d282e9360a2d2eace451

  • SHA256

    e97d9651c1df50e5eb6847b6dde990e9fab3504c245557b61df65215df6de176

  • SHA512

    199f60f46d89bf3aadac7e2c67dbcdae716e3644b2db0c67e340cd55b47c78a1683acf27021850755d5ab66ee6850d3eba425e369604413b9897eb01f176ec2b

  • SSDEEP

    24576:W+O7F9smBDJwWmIezBLwsHuWbxR4AK5ZJXX:x8/KfRTK

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Modifies WinLogon for persistence 2 TTPs 7 IoCs
  • Process spawned unexpected child process 7 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • UAC bypass 3 TTPs 6 IoCs
  • DCRat payload 5 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Drops file in System32 directory 25 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 7 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c8aee7bbd1b09e31178be12bc847c30_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\5c8aee7bbd1b09e31178be12bc847c30_NeikiAnalytics.exe"
    1⤵
    • Modifies WinLogon for persistence
    • UAC bypass
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2196
    • C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\taskhost.exe
      "C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\taskhost.exe"
      2⤵
      • UAC bypass
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:1856
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Recovery\5b7985c2-d100-11ee-bb00-c695cbc44580\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2544
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Windows\System32\w32tm\taskhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2572
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Windows\System32\mfc120fra\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2748
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\System32\mfc110kor\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2524
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\System32\mfc140esn\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Windows\System32\ieUnatt\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2984
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1056

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\Access.en-us\dllhost.exe

    Filesize

    952KB

    MD5

    39502141a6598bb1fa71d5a0e6de504d

    SHA1

    67e1947e0bca927ad2f9c709d6777f0adc277199

    SHA256

    9aa56a80084cc26e2a3669bde92dcde0ac3e0308de473b2f1db10679beb05c64

    SHA512

    8eea5032ac7f7fee62879ee9e0e17bfcbf51626b2a87b621009bc8654246083383aaa7ec2c1b793ebc8a5b76842c10459c14d1916e84aba9e508a4542c41a2a8

  • C:\Windows\System32\mfc120fra\lsm.exe

    Filesize

    952KB

    MD5

    c6829961b8b15e4e72a427292dc1ca03

    SHA1

    b0b49297d0d2147d48e8c00ef8322db4b06489a4

    SHA256

    050ad1735814338e79e711ca13e66430a109167821f04dd31b916c701b9163e0

    SHA512

    5b74543ae0245370bc89c167652630d2a2e264544df4ea6eb7b209cbcc364ccb4e6b2fb773bc113333eeb7783a107b537bb11af3f7526ae1722eae8b1a08f4cd

  • C:\Windows\System32\mfc140esn\winlogon.exe

    Filesize

    952KB

    MD5

    5c8aee7bbd1b09e31178be12bc847c30

    SHA1

    5cc34074f6c74cb0cbb3d282e9360a2d2eace451

    SHA256

    e97d9651c1df50e5eb6847b6dde990e9fab3504c245557b61df65215df6de176

    SHA512

    199f60f46d89bf3aadac7e2c67dbcdae716e3644b2db0c67e340cd55b47c78a1683acf27021850755d5ab66ee6850d3eba425e369604413b9897eb01f176ec2b

  • memory/1856-119-0x0000000000DA0000-0x0000000000E94000-memory.dmp

    Filesize

    976KB

  • memory/2196-4-0x0000000000360000-0x0000000000370000-memory.dmp

    Filesize

    64KB

  • memory/2196-5-0x0000000000350000-0x000000000035A000-memory.dmp

    Filesize

    40KB

  • memory/2196-6-0x0000000000390000-0x000000000039C000-memory.dmp

    Filesize

    48KB

  • memory/2196-7-0x0000000000470000-0x000000000047A000-memory.dmp

    Filesize

    40KB

  • memory/2196-8-0x0000000000430000-0x0000000000438000-memory.dmp

    Filesize

    32KB

  • memory/2196-11-0x0000000000460000-0x000000000046C000-memory.dmp

    Filesize

    48KB

  • memory/2196-10-0x0000000000450000-0x000000000045C000-memory.dmp

    Filesize

    48KB

  • memory/2196-9-0x0000000000440000-0x000000000044A000-memory.dmp

    Filesize

    40KB

  • memory/2196-0-0x000007FEF5B43000-0x000007FEF5B44000-memory.dmp

    Filesize

    4KB

  • memory/2196-3-0x0000000000140000-0x0000000000150000-memory.dmp

    Filesize

    64KB

  • memory/2196-2-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

    Filesize

    9.9MB

  • memory/2196-120-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

    Filesize

    9.9MB

  • memory/2196-1-0x0000000000D40000-0x0000000000E34000-memory.dmp

    Filesize

    976KB