Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    27-07-2024 11:06

General

  • Target

    1a9c19cd373f9ce0642f18f6965521b3.exe

  • Size

    1.1MB

  • MD5

    1a9c19cd373f9ce0642f18f6965521b3

  • SHA1

    64bc66f217964ab7310084cc9b2e4ef72ea7156b

  • SHA256

    82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb

  • SHA512

    3b68254d3425e45f2d28dbdf0507fe723ea4ef493c33707fb94ea23d30e59ad63c8ba30d7efc3102d88bda70d60ab3895f2e8dcdd9383260ef3807afd6cf2349

  • SSDEEP

    24576:10ybzboC40b/IwQSETTrn/BBhA/nJTbEHzsS/:10ykC40nEIdSzs

Score
10/10

Malware Config

Signatures

  • DcRat

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

  • Process spawned unexpected child process 54 IoCs

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

  • DCRat payload 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 54 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 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\1a9c19cd373f9ce0642f18f6965521b3.exe
    "C:\Users\Admin\AppData\Local\Temp\1a9c19cd373f9ce0642f18f6965521b3.exe"
    1⤵
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Program Files\Windows Sidebar\en-US\OSPPSVC.exe
      "C:\Program Files\Windows Sidebar\en-US\OSPPSVC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2156
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2280
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2232
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 10 /tr "'C:\Users\Admin\Desktop\OSPPSVC.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2832
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Users\Admin\Desktop\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2712
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 7 /tr "'C:\Users\Admin\Desktop\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2944
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Journal\it-IT\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2768
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Journal\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2916
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Journal\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2724
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2588
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 8 /tr "'C:\Program Files\Windows Portable Devices\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2660
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2200
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3032
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2480
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Users\Default\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Users\Default\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:840
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 7 /tr "'C:\Users\Default\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1948
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 10 /tr "'C:\Windows\Fonts\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2032
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\Fonts\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2064
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 8 /tr "'C:\Windows\Fonts\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2108
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\en-US\OSPPSVC.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2484
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\en-US\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1712
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Sidebar\en-US\OSPPSVC.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1036
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b31" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Defender\en-US\1a9c19cd373f9ce0642f18f6965521b3.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2900
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b3" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\en-US\1a9c19cd373f9ce0642f18f6965521b3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1788
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b31" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Defender\en-US\1a9c19cd373f9ce0642f18f6965521b3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2872
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 7 /tr "'C:\Windows\System32\nl-NL\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:3060
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\System32\nl-NL\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Windows\System32\nl-NL\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2244
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b31" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\1a9c19cd373f9ce0642f18f6965521b3.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:792
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b3" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\es-ES\1a9c19cd373f9ce0642f18f6965521b3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2228
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1a9c19cd373f9ce0642f18f6965521b31" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Windows Defender\es-ES\1a9c19cd373f9ce0642f18f6965521b3.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2256
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 5 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1488
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1292
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "lsml" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:992
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Users\Default User\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1344
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Program Files\Uninstall Information\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1280
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1288
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Program Files\Uninstall Information\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1784
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\Program Files\Uninstall Information\services.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:892
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files\Uninstall Information\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\Program Files\Uninstall Information\services.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1856
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Media Player\Visualizations\explorer.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1052
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\Visualizations\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1144
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Media Player\Visualizations\explorer.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2128
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 13 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\sppsvc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2364
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2024
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\sppsvc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:328
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:2192
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1804
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Scheduled Task/Job: Scheduled Task
    PID:1508

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Discovery

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Recovery\b2a802a2-3b12-11ef-8991-d2f1755c8afd\winlogon.exe
    Filesize

    1.1MB

    MD5

    1a9c19cd373f9ce0642f18f6965521b3

    SHA1

    64bc66f217964ab7310084cc9b2e4ef72ea7156b

    SHA256

    82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb

    SHA512

    3b68254d3425e45f2d28dbdf0507fe723ea4ef493c33707fb94ea23d30e59ad63c8ba30d7efc3102d88bda70d60ab3895f2e8dcdd9383260ef3807afd6cf2349

  • memory/2156-47-0x0000000000BC0000-0x0000000000CE6000-memory.dmp
    Filesize

    1.1MB

  • memory/3048-0-0x000007FEF5C03000-0x000007FEF5C04000-memory.dmp
    Filesize

    4KB

  • memory/3048-1-0x0000000000BD0000-0x0000000000CF6000-memory.dmp
    Filesize

    1.1MB

  • memory/3048-2-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp
    Filesize

    9.9MB

  • memory/3048-3-0x0000000000450000-0x000000000046C000-memory.dmp
    Filesize

    112KB

  • memory/3048-4-0x0000000000470000-0x0000000000486000-memory.dmp
    Filesize

    88KB

  • memory/3048-48-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp
    Filesize

    9.9MB