Analysis

  • max time kernel
    73s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22-03-2023 11:21

General

  • Target

    36debef0fda01710af9b0e7b6d990a37.bin.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 6 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 6 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\36debef0fda01710af9b0e7b6d990a37.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1948
    • 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:1140
    • 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:1764
    • C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
      C:\Users\Admin\AppData\Local\Temp\36debef0fda01710af9b0e7b6d990a37.bin.exe
      2⤵
        PID:1644

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Install Root Certificate

    1
    T1130

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    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\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      Filesize

      342B

      MD5

      34b91e8107f45018ac26fbef1fe22e0f

      SHA1

      66651488c93144961146c63458e0332496b36010

      SHA256

      f46c85c25e5814a5664ec531c67d287cae704cb88e64a37f6fc411055173367a

      SHA512

      3bee15dee1a0e24afc6ac311c43ba890040912fb80298adf1a64f78866a1b14152a9cec1d0617c6d875d52e995f79d3979fc29333adf21adaf892a4aef7210f9

    • C:\Users\Admin\AppData\Local\Temp\CabEA33.tmp
      Filesize

      61KB

      MD5

      fc4666cbca561e864e7fdf883a9e6661

      SHA1

      2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

      SHA256

      10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

      SHA512

      c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    • C:\Users\Admin\AppData\Local\Temp\TarEBA1.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/1140-61-0x00000000026E0000-0x0000000002720000-memory.dmp
      Filesize

      256KB

    • memory/1140-60-0x00000000026E0000-0x0000000002720000-memory.dmp
      Filesize

      256KB

    • memory/1644-81-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-83-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-74-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-75-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-76-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-77-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-78-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-80-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1644-79-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1644-84-0x0000000000400000-0x00000000004A3000-memory.dmp
      Filesize

      652KB

    • memory/1764-88-0x0000000000360000-0x0000000000372000-memory.dmp
      Filesize

      72KB

    • memory/1764-92-0x0000000000550000-0x000000000055E000-memory.dmp
      Filesize

      56KB

    • memory/1764-85-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1764-86-0x0000000000340000-0x000000000035C000-memory.dmp
      Filesize

      112KB

    • memory/1764-87-0x0000000000380000-0x0000000000396000-memory.dmp
      Filesize

      88KB

    • memory/1764-72-0x0000000000DC0000-0x0000000000ED2000-memory.dmp
      Filesize

      1.1MB

    • memory/1764-89-0x0000000000540000-0x0000000000550000-memory.dmp
      Filesize

      64KB

    • memory/1764-90-0x00000000003A0000-0x00000000003B2000-memory.dmp
      Filesize

      72KB

    • memory/1764-91-0x0000000000530000-0x000000000053E000-memory.dmp
      Filesize

      56KB

    • memory/1764-198-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1764-93-0x0000000000710000-0x000000000071A000-memory.dmp
      Filesize

      40KB

    • memory/1764-94-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1764-197-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1764-178-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1764-177-0x000000001AF50000-0x000000001AFD0000-memory.dmp
      Filesize

      512KB

    • memory/1948-55-0x0000000004A90000-0x0000000004AD0000-memory.dmp
      Filesize

      256KB

    • memory/1948-56-0x0000000006270000-0x000000000647C000-memory.dmp
      Filesize

      2.0MB

    • memory/1948-57-0x0000000005C10000-0x0000000005CA2000-memory.dmp
      Filesize

      584KB

    • memory/1948-62-0x0000000004A90000-0x0000000004AD0000-memory.dmp
      Filesize

      256KB

    • memory/1948-54-0x0000000001160000-0x000000000127E000-memory.dmp
      Filesize

      1.1MB