Analysis
-
max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
07-01-2025 22:43
General
-
Target
cfe5bf369e60e17054176b8926c7336e53d0489e1a65815610a794886d1d90d2N.exe
-
Size
1.2MB
-
MD5
77760d25680549a6e33d813225f15ae0
-
SHA1
3ba98784170c929615f2a606c1865bbcca860140
-
SHA256
cfe5bf369e60e17054176b8926c7336e53d0489e1a65815610a794886d1d90d2
-
SHA512
6e758c1402852a2ee6c669208b491160eefb086c1b5bc52b698d9292ad933e8e71a66413e367b6f6c36f1df841e145b8ee5f06035deceba678a481279ebbcbac
-
SSDEEP
24576:Zrtb29jyTS6MoaS0BPXM3l9HDesNM1w3HzjM4LjvTCdPILP+4:jb29j5jf/GB6eZLG
Malware Config
Signatures
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
-
Dcrat family
-
Process spawned unexpected child process 6 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
-
UAC bypass 3 TTPs 6 IoCs
-
DCRat payload 4 IoCs
Detects payload of DCRat, commonly dropped by NSIS installers.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE 1 IoCs
-
Adds Run key to start application 2 TTPs 6 IoCs
-
Checks whether UAC is enabled 1 TTPs 4 IoCs
-
Drops file in System32 directory 10 IoCs
-
Drops file in Windows directory 20 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 1 IoCs
-
Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 12 IoCs
-
Suspicious use of AdjustPrivilegeToken 2 IoCs
-
Suspicious use of WriteProcessMemory 6 IoCs
-
System policy modification 1 TTPs 6 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\cfe5bf369e60e17054176b8926c7336e53d0489e1a65815610a794886d1d90d2N.exe"C:\Users\Admin\AppData\Local\Temp\cfe5bf369e60e17054176b8926c7336e53d0489e1a65815610a794886d1d90d2N.exe"1⤵
- UAC bypass
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\paWlWqEOOw.bat"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵
-
-
C:\Windows\notepad\sysmon.exe"C:\Windows\notepad\sysmon.exe"3⤵
- UAC bypass
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- System policy modification
-
-
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\L2Schemas\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\WpcRefreshTask\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sihost" /sc ONLOGON /tr "'C:\Windows\System32\gptext\sihost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Windows\twain_32\sysmon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Windows\notepad\sysmon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\SchCache\winlogon.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
193B
MD5b69e49ff5d11fe6698068257642a49e2
SHA1b391a7c8f5065c497b9036a19c935bcba81a1d9d
SHA256910ea5273e2f3705424e0f020be449fce0ac15e1ed939520aaf076450ccf00b8
SHA512441a001f02d2f36230bea6e5fdcb1eec53844d880844ecdd18c508ed36874ecba398bd3dd7ae8e3a64dbb14aa6b24f305e9089860e40524b34130b129e5e5cc7
-
Filesize
1.2MB
MD577760d25680549a6e33d813225f15ae0
SHA13ba98784170c929615f2a606c1865bbcca860140
SHA256cfe5bf369e60e17054176b8926c7336e53d0489e1a65815610a794886d1d90d2
SHA5126e758c1402852a2ee6c669208b491160eefb086c1b5bc52b698d9292ad933e8e71a66413e367b6f6c36f1df841e145b8ee5f06035deceba678a481279ebbcbac
-
Filesize
1.2MB
MD527e94e42d7e229f5bbe4bee9ef991bd6
SHA14ff1cd1b578525ec078413c4e108e8188203306e
SHA256f19e3b3a8b90e92d417b7ff025f24e4d4c81740d0fbf302c22bd18eff7f0f9d9
SHA5125ae946bbeac6b0cdd9084dde8644918e7203398faf7e3e2eee925d9f417030600998ec2a1fd14d11bf7fe9c5c6b8962534597511d1c89b724b11c00030c2a4de
-
Filesize
1.2MB
-
Filesize
64KB
-
Filesize
48KB
-
Filesize
40KB
-
Filesize
32KB
-
Filesize
48KB
-
Filesize
48KB
-
Filesize
8KB
-
Filesize
10.8MB
-
Filesize
10.8MB
-
Filesize
1.2MB