dcrat | 675d500266a8a61ed4ddb26a9bd442f4f25f3c21190a190709d2d2c26825e96d

General

Target

Midnite.exe
Size

1.3MB
MD5

ce12be878d15f0babc5e2ccdec0ec473
SHA1

74c770c0c9c7faae5d391f96bde8f1baf3080c6d
SHA256

675d500266a8a61ed4ddb26a9bd442f4f25f3c21190a190709d2d2c26825e96d
SHA512

ae5d83bd75c1ee080a7461c36e28b1d6981231ace095519c94060689d8b0994a2c3aa16d0df2f7697f6d1f7f94b42bdf03e3179fec7ea2b051b20b4b13cef3bd
SSDEEP

24576:5gfTztXIwQkLAvEONLP3c7RgGOxPC/v42qlb:GNXIwQkezs7RC4I2Sb

Score

10^/10

dcrat infostealer rat

Malware Config

Signatures

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

DCRat payload 1 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

Processes:

resource	yara_rule
behavioral2/memory/3788-135-0x0000000000400000-0x00000000004CE000-memory.dmp	dcrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

Midnite.exe

description pid process target process

PID 2356 set thread context of 3788 2356 Midnite.exe InstallUtil.exe

description	pid	process	target process
PID 2356 set thread context of 3788	2356	Midnite.exe	InstallUtil.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

taskmgr.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

InstallUtil.exetaskmgr.exe

pid	process
3788	InstallUtil.exe
4692	taskmgr.exe
4692	taskmgr.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
4692	taskmgr.exe
4692	taskmgr.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
3788	InstallUtil.exe
4692	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

InstallUtil.exetaskmgr.exe

description	pid	process
Token: SeDebugPrivilege	3788	InstallUtil.exe
Token: SeDebugPrivilege	4692	taskmgr.exe
Token: SeSystemProfilePrivilege	4692	taskmgr.exe
Token: SeCreateGlobalPrivilege	4692	taskmgr.exe
Token: 33	4692	taskmgr.exe
Token: SeIncBasePriorityPrivilege	4692	taskmgr.exe

Suspicious use of FindShellTrayWindow 31 IoCs

Processes:

taskmgr.exe

pid	process
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe

Suspicious use of SendNotifyMessage 30 IoCs

Processes:

taskmgr.exe

pid	process
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe
4692	taskmgr.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Midnite.exe

description	pid	process	target process
PID 2356 wrote to memory of 5012	2356	Midnite.exe	cmd.exe
PID 2356 wrote to memory of 5012	2356	Midnite.exe	cmd.exe
PID 2356 wrote to memory of 5012	2356	Midnite.exe	cmd.exe
PID 2356 wrote to memory of 4896	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 4896	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 4896	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe
PID 2356 wrote to memory of 3788	2356	Midnite.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Midnite.exe
"C:\Users\Admin\AppData\Local\Temp\Midnite.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2356

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
2⤵
PID:5012

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
PID:4896

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3788

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3788-134-0x0000000000000000-mapping.dmp

Download
memory/3788-135-0x0000000000400000-0x00000000004CE000-memory.dmp

Filesize
824KB

Download
memory/3788-136-0x0000000006410000-0x00000000069B4000-memory.dmp

Filesize
5.6MB

Download
memory/3788-137-0x00000000062D0000-0x0000000006320000-memory.dmp

Filesize
320KB

Download
memory/3788-138-0x0000000006AC0000-0x0000000006B26000-memory.dmp

Filesize
408KB

Download
memory/3788-139-0x0000000007590000-0x0000000007622000-memory.dmp

Filesize
584KB

Download
memory/4896-133-0x0000000000000000-mapping.dmp

Download
memory/5012-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads