Analysis

  • max time kernel
    136s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01-02-2024 09:30

General

  • Target

    documents.exe

  • Size

    877KB

  • MD5

    173aa6b5c260b3e19f1b979f054b02b0

  • SHA1

    9ea4da05677968a322acf4330699e76b31676130

  • SHA256

    0dd421edda69a829b7b9d025fd81f947085c0b3a54d9025312823a56c2b5df83

  • SHA512

    29415d7778eb7d1275815f1bcee0c3f0613f300df29172ab03d63c119491af6ced57c25c39ed27e010c0e7ce7be87de216bf2757480db9fd392b95c1f8282d51

  • SSDEEP

    24576:L/UAc8bshd1ixMpqvhnjqJR33ulonktC+FMIpSmUrSGG:L/U8bI1+MMv5YwloWCZU0m7

Score
10/10

Malware Config

Extracted

Family

darkcloud

Attributes

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\documents.exe
    "C:\Users\Admin\AppData\Local\Temp\documents.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sTIDCEmUa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2740
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA41C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2092
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA41C.tmp

    Filesize

    1KB

    MD5

    0b4a7e603e0ee69f79d612af45572072

    SHA1

    7bf5abfaf816f43487cb06e8a2b4ea6b925e3747

    SHA256

    5a7bd18eaf054ee20a46840cc9ba852a3c4a6d3445a91828cd36f60426db8fdd

    SHA512

    50c9c6308a3ef9bc32c04883d35d348beb63cfb819e828e8a216930d0d0c31461ef0376cfdeda57a6114077ac968de7d05f03e2a217f7ffaea54d20a2c5fb301

  • memory/2456-0-0x0000000000210000-0x00000000002F2000-memory.dmp

    Filesize

    904KB

  • memory/2456-1-0x0000000074D00000-0x00000000753EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2456-2-0x0000000004640000-0x0000000004680000-memory.dmp

    Filesize

    256KB

  • memory/2456-3-0x0000000000540000-0x000000000055C000-memory.dmp

    Filesize

    112KB

  • memory/2456-4-0x00000000005D0000-0x00000000005DE000-memory.dmp

    Filesize

    56KB

  • memory/2456-5-0x00000000005E0000-0x00000000005F4000-memory.dmp

    Filesize

    80KB

  • memory/2456-6-0x0000000005210000-0x00000000052B8000-memory.dmp

    Filesize

    672KB

  • memory/2456-7-0x0000000074D00000-0x00000000753EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2456-8-0x0000000004640000-0x0000000004680000-memory.dmp

    Filesize

    256KB

  • memory/2456-25-0x0000000074D00000-0x00000000753EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2716-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-22-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-24-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-30-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2716-34-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2740-28-0x000000006F130000-0x000000006F6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2740-29-0x0000000002640000-0x0000000002680000-memory.dmp

    Filesize

    256KB

  • memory/2740-32-0x0000000002640000-0x0000000002680000-memory.dmp

    Filesize

    256KB

  • memory/2740-31-0x000000006F130000-0x000000006F6DB000-memory.dmp

    Filesize

    5.7MB

  • memory/2740-33-0x000000006F130000-0x000000006F6DB000-memory.dmp

    Filesize

    5.7MB