Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\documents.exe
    "C:\Users\Admin\AppData\Local\Temp\documents.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1188
    • 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:1092
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sTIDCEmUa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD57.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4652
    • 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:2080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5oahlgnd.j5l.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpAD57.tmp

    Filesize

    1KB

    MD5

    0435b831fa39f2440518e588337248db

    SHA1

    b1113437be1ab9891ab18885df5b997095b8db25

    SHA256

    624f2e0284b92f2963bdc1cdf1dbc726a36568532e62f74991d85a219af3e6c4

    SHA512

    06b69539b0e60669c80d1470195fdd5540dbcb379175e53c1d0d65d517d8a0524b5d8cfcee70f1a058a0b939ee0d8cc0a13a9a088d9b33142966eb5fe7e59ea3

  • memory/1092-18-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1092-44-0x00000000068A0000-0x00000000068EC000-memory.dmp

    Filesize

    304KB

  • memory/1092-46-0x0000000006E50000-0x0000000006E82000-memory.dmp

    Filesize

    200KB

  • memory/1092-66-0x0000000007DC0000-0x0000000007DD4000-memory.dmp

    Filesize

    80KB

  • memory/1092-45-0x000000007F600000-0x000000007F610000-memory.dmp

    Filesize

    64KB

  • memory/1092-47-0x0000000075C40000-0x0000000075C8C000-memory.dmp

    Filesize

    304KB

  • memory/1092-64-0x0000000007D80000-0x0000000007D91000-memory.dmp

    Filesize

    68KB

  • memory/1092-63-0x0000000007E00000-0x0000000007E96000-memory.dmp

    Filesize

    600KB

  • memory/1092-57-0x0000000006E10000-0x0000000006E2E000-memory.dmp

    Filesize

    120KB

  • memory/1092-62-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

    Filesize

    40KB

  • memory/1092-60-0x00000000081C0000-0x000000000883A000-memory.dmp

    Filesize

    6.5MB

  • memory/1092-17-0x0000000002F40000-0x0000000002F76000-memory.dmp

    Filesize

    216KB

  • memory/1092-68-0x0000000007EA0000-0x0000000007EA8000-memory.dmp

    Filesize

    32KB

  • memory/1092-67-0x0000000007EC0000-0x0000000007EDA000-memory.dmp

    Filesize

    104KB

  • memory/1092-28-0x0000000006180000-0x00000000061E6000-memory.dmp

    Filesize

    408KB

  • memory/1092-21-0x0000000003030000-0x0000000003040000-memory.dmp

    Filesize

    64KB

  • memory/1092-65-0x0000000007DB0000-0x0000000007DBE000-memory.dmp

    Filesize

    56KB

  • memory/1092-61-0x0000000007B80000-0x0000000007B9A000-memory.dmp

    Filesize

    104KB

  • memory/1092-58-0x0000000003030000-0x0000000003040000-memory.dmp

    Filesize

    64KB

  • memory/1092-26-0x0000000005790000-0x00000000057B2000-memory.dmp

    Filesize

    136KB

  • memory/1092-59-0x0000000007A40000-0x0000000007AE3000-memory.dmp

    Filesize

    652KB

  • memory/1092-22-0x00000000059E0000-0x0000000006008000-memory.dmp

    Filesize

    6.2MB

  • memory/1092-30-0x0000000006260000-0x00000000062C6000-memory.dmp

    Filesize

    408KB

  • memory/1092-71-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1092-42-0x00000000063D0000-0x0000000006724000-memory.dmp

    Filesize

    3.3MB

  • memory/1092-43-0x0000000006850000-0x000000000686E000-memory.dmp

    Filesize

    120KB

  • memory/1092-19-0x0000000003030000-0x0000000003040000-memory.dmp

    Filesize

    64KB

  • memory/1188-11-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1188-8-0x0000000006630000-0x0000000006644000-memory.dmp

    Filesize

    80KB

  • memory/1188-1-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1188-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1188-15-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/1188-0-0x00000000006E0000-0x00000000007C2000-memory.dmp

    Filesize

    904KB

  • memory/1188-10-0x000000000A6B0000-0x000000000A74C000-memory.dmp

    Filesize

    624KB

  • memory/1188-9-0x0000000007F90000-0x0000000008038000-memory.dmp

    Filesize

    672KB

  • memory/1188-7-0x0000000005700000-0x000000000570E000-memory.dmp

    Filesize

    56KB

  • memory/1188-29-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1188-6-0x0000000005530000-0x000000000554C000-memory.dmp

    Filesize

    112KB

  • memory/1188-5-0x00000000051E0000-0x00000000051EA000-memory.dmp

    Filesize

    40KB

  • memory/1188-4-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/1188-3-0x0000000005200000-0x0000000005292000-memory.dmp

    Filesize

    584KB

  • memory/2080-23-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2080-27-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2080-72-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB