Analysis

  • max time kernel
    94s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22-03-2023 11:39

General

  • Target

    b74d79014b30d14abbfbc7adac9a9c2a484f51b9.exe

  • Size

    1.1MB

  • MD5

    36debef0fda01710af9b0e7b6d990a37

  • SHA1

    b74d79014b30d14abbfbc7adac9a9c2a484f51b9

  • SHA256

    5d61d2fe577e2a1feac949e6ee980fc9589e4b9472bc4ae249e5d50371ce0e9a

  • SHA512

    a4fdeb9658b23abf6544344131d2504a72512773f9b041a1c83cee137bb248bf5ab28e11b07d21302fa54660e2eff8fb97f8c3b00d4c7cdee237c237f91befa4

  • SSDEEP

    12288:7EOA56TrfgrfGA3hM6iM8QSArLmMcKDJW0lt6/9y4dne+qR/:o5IErf1hTP8ALrDc0lQ/9y4dne

Malware Config

Signatures

  • DcRat

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

  • Panda Stealer payload 7 IoCs
  • PandaStealer

    Panda Stealer is a fork of CollectorProject Stealer written in C++.

  • DCRat payload 6 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b74d79014b30d14abbfbc7adac9a9c2a484f51b9.exe
    "C:\Users\Admin\AppData\Local\Temp\b74d79014b30d14abbfbc7adac9a9c2a484f51b9.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1016
    • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe
      "C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1788
    • C:\Users\Admin\AppData\Local\Temp\b74d79014b30d14abbfbc7adac9a9c2a484f51b9.exe
      C:\Users\Admin\AppData\Local\Temp\b74d79014b30d14abbfbc7adac9a9c2a484f51b9.exe
      2⤵
        PID:1952

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      61KB

      MD5

      e71c8443ae0bc2e282c73faead0a6dd3

      SHA1

      0c110c1b01e68edfacaeae64781a37b1995fa94b

      SHA256

      95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

      SHA512

      b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

    • C:\Users\Admin\AppData\Local\Temp\CabEEA6.tmp

      Filesize

      61KB

      MD5

      fc4666cbca561e864e7fdf883a9e6661

      SHA1

      2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

      SHA256

      10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

      SHA512

      c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    • C:\Users\Admin\AppData\Local\Temp\TarF34F.tmp

      Filesize

      161KB

      MD5

      be2bec6e8c5653136d3e72fe53c98aa3

      SHA1

      a8182d6db17c14671c3d5766c72e58d87c0810de

      SHA256

      1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

      SHA512

      0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe

      Filesize

      1.0MB

      MD5

      3a1aa0d3d3fad3ba324feda977846412

      SHA1

      b1423f52ef9060e5c3d77394224f65af757f2f17

      SHA256

      7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

      SHA512

      c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

    • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe

      Filesize

      1.0MB

      MD5

      3a1aa0d3d3fad3ba324feda977846412

      SHA1

      b1423f52ef9060e5c3d77394224f65af757f2f17

      SHA256

      7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

      SHA512

      c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

    • C:\Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe

      Filesize

      1.0MB

      MD5

      3a1aa0d3d3fad3ba324feda977846412

      SHA1

      b1423f52ef9060e5c3d77394224f65af757f2f17

      SHA256

      7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

      SHA512

      c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

    • \Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe

      Filesize

      1.0MB

      MD5

      3a1aa0d3d3fad3ba324feda977846412

      SHA1

      b1423f52ef9060e5c3d77394224f65af757f2f17

      SHA256

      7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

      SHA512

      c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

    • \Users\Admin\AppData\Local\Temp\Xxcmfezhjmaxhvcomintoperf.exe

      Filesize

      1.0MB

      MD5

      3a1aa0d3d3fad3ba324feda977846412

      SHA1

      b1423f52ef9060e5c3d77394224f65af757f2f17

      SHA256

      7606edcf0491794b631f9aaf1a7e34fd0960e542d30614b562c8423afc86e2c1

      SHA512

      c9f6d5d9d53fa590c3499c4eeb73bdb2081c9dffdb9aa587672861e5af7b84ae80ff326bc0b738656117d762c1204e256538f4c8703451912d32b88bd171d68f

    • memory/1016-60-0x0000000002430000-0x0000000002470000-memory.dmp

      Filesize

      256KB

    • memory/1016-65-0x0000000002430000-0x0000000002470000-memory.dmp

      Filesize

      256KB

    • memory/1016-64-0x0000000002430000-0x0000000002470000-memory.dmp

      Filesize

      256KB

    • memory/1016-63-0x0000000002430000-0x0000000002470000-memory.dmp

      Filesize

      256KB

    • memory/1016-61-0x0000000002430000-0x0000000002470000-memory.dmp

      Filesize

      256KB

    • memory/1724-62-0x0000000004500000-0x0000000004540000-memory.dmp

      Filesize

      256KB

    • memory/1724-54-0x0000000000E70000-0x0000000000F8E000-memory.dmp

      Filesize

      1.1MB

    • memory/1724-57-0x00000000057D0000-0x0000000005862000-memory.dmp

      Filesize

      584KB

    • memory/1724-56-0x00000000062D0000-0x00000000064DC000-memory.dmp

      Filesize

      2.0MB

    • memory/1724-55-0x0000000004500000-0x0000000004540000-memory.dmp

      Filesize

      256KB

    • memory/1788-92-0x0000000001E10000-0x0000000001E20000-memory.dmp

      Filesize

      64KB

    • memory/1788-96-0x0000000001F50000-0x0000000001F5A000-memory.dmp

      Filesize

      40KB

    • memory/1788-211-0x000000001AE10000-0x000000001AE90000-memory.dmp

      Filesize

      512KB

    • memory/1788-210-0x000000001AE10000-0x000000001AE90000-memory.dmp

      Filesize

      512KB

    • memory/1788-191-0x000000001AE10000-0x000000001AE90000-memory.dmp

      Filesize

      512KB

    • memory/1788-75-0x0000000000290000-0x00000000003A2000-memory.dmp

      Filesize

      1.1MB

    • memory/1788-97-0x000000001AE10000-0x000000001AE90000-memory.dmp

      Filesize

      512KB

    • memory/1788-95-0x0000000001EC0000-0x0000000001ECE000-memory.dmp

      Filesize

      56KB

    • memory/1788-88-0x000000001AE10000-0x000000001AE90000-memory.dmp

      Filesize

      512KB

    • memory/1788-89-0x0000000000620000-0x000000000063C000-memory.dmp

      Filesize

      112KB

    • memory/1788-90-0x0000000000640000-0x0000000000656000-memory.dmp

      Filesize

      88KB

    • memory/1788-91-0x00000000004D0000-0x00000000004E2000-memory.dmp

      Filesize

      72KB

    • memory/1788-94-0x0000000000660000-0x000000000066E000-memory.dmp

      Filesize

      56KB

    • memory/1788-93-0x0000000000500000-0x0000000000512000-memory.dmp

      Filesize

      72KB

    • memory/1952-79-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-87-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-81-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-86-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-78-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-77-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-84-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-83-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1952-82-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB

    • memory/1952-80-0x0000000000400000-0x00000000004A3000-memory.dmp

      Filesize

      652KB