dcrat | 2b6565f715fec4f3d683ceb3668cbc051977b7c2a1e0436a6bd791d9d89e0738

Analysis

max time kernel
117s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-12-2024 01:51

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General

Target

e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
Size

3.5MB
MD5

e7870cd0c30a52066c454c15a5a5a2f5
SHA1

fc64203e05c104a116e7e4c354c9ee77c99737d6
SHA256

e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e
SHA512

3e0a40959eaba1fbf3cb7a11707bc658421f3066e4e1beea56088ac213c10524127d4d9e2500e549a1ee608887c113973892d54fb91fae6ea9db4eb9e818bebe
SSDEEP

98304:sALvAvoV3JDBQSBK5f7a6uBt9iofavIa:smvvV5DpQ7a6ugoCvI

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 family
dcrat

Executes dropped EXE 1 IoCs

pid	Process
1696	sppsvc.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Windows NT\Accessories\fr-FR\csrss.exe	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
File created	C:\Program Files\Windows NT\Accessories\fr-FR\886983d96e3d3e	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Vss\Writers\System\sppsvc.exe	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
File created	C:\Windows\Vss\Writers\System\0a1fd5f707cd16	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
File created	C:\Windows\Help\mui\040C\WmiPrvSE.exe	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
File created	C:\Windows\Help\mui\040C\24dbde2999530e	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
1696	sppsvc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
Token: SeDebugPrivilege	1696	sppsvc.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2644	2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe	31
PID 2072 wrote to memory of 2644	2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe	31
PID 2072 wrote to memory of 2644	2072	e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe	31
PID 2644 wrote to memory of 2816	2644	cmd.exe	33
PID 2644 wrote to memory of 2816	2644	cmd.exe	33
PID 2644 wrote to memory of 2816	2644	cmd.exe	33
PID 2644 wrote to memory of 2732	2644	cmd.exe	34
PID 2644 wrote to memory of 2732	2644	cmd.exe	34
PID 2644 wrote to memory of 2732	2644	cmd.exe	34
PID 2644 wrote to memory of 1696	2644	cmd.exe	35
PID 2644 wrote to memory of 1696	2644	cmd.exe	35
PID 2644 wrote to memory of 1696	2644	cmd.exe	35
PID 2644 wrote to memory of 1696	2644	cmd.exe	35
PID 2644 wrote to memory of 1696	2644	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe
"C:\Users\Admin\AppData\Local\Temp\e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\crarqHX4F1.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Windows\system32\chcp.com
    chcp 65001
    3⤵
    PID:2816
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:2732
- - C:\Windows\Vss\Writers\System\sppsvc.exe
    "C:\Windows\Vss\Writers\System\sppsvc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\crarqHX4F1.bat

Filesize
216B

MD5
56cb79e28d633750a2224ef1de2025d5

SHA1
aface879588b20733fb3b08b30299ebcd85fd40b

SHA256
47061ecd072121149908f324a12515746f1e5710afbeb8f6584b73f23bffdd83

SHA512
90d2fca81f420207babd5ddb166a7990efbc7ffc461accf0566841b27ae6b2438ff0aa3592976abb6fd6598fc0866f1fa68445f2e7d1779185e5166094a4a92f

Download Submit
C:\Windows\Vss\Writers\System\sppsvc.exe

Filesize
3.5MB

MD5
e7870cd0c30a52066c454c15a5a5a2f5

SHA1
fc64203e05c104a116e7e4c354c9ee77c99737d6

SHA256
e4a958444e72eb1b3be02f3a8bf29044a81f328405a4969a4f66515ef219774e

SHA512
3e0a40959eaba1fbf3cb7a11707bc658421f3066e4e1beea56088ac213c10524127d4d9e2500e549a1ee608887c113973892d54fb91fae6ea9db4eb9e818bebe

Download Submit
memory/1696-75-0x0000000000930000-0x0000000000CBE000-memory.dmp

Filesize
3.6MB

Download
memory/2072-28-0x00000000006C0000-0x00000000006D0000-memory.dmp

Filesize
64KB

Download
memory/2072-7-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-6-0x0000000000430000-0x0000000000456000-memory.dmp

Filesize
152KB

Download
memory/2072-32-0x0000000000B80000-0x0000000000B92000-memory.dmp

Filesize
72KB

Download
memory/2072-8-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-33-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-13-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-12-0x0000000000690000-0x00000000006AC000-memory.dmp

Filesize
112KB

Download
memory/2072-15-0x0000000000410000-0x0000000000420000-memory.dmp

Filesize
64KB

Download
memory/2072-17-0x00000000006D0000-0x00000000006E8000-memory.dmp

Filesize
96KB

Download
memory/2072-19-0x0000000000420000-0x0000000000430000-memory.dmp

Filesize
64KB

Download
memory/2072-21-0x0000000000570000-0x0000000000580000-memory.dmp

Filesize
64KB

Download
memory/2072-23-0x00000000006B0000-0x00000000006BE000-memory.dmp

Filesize
56KB

Download
memory/2072-25-0x0000000000AB0000-0x0000000000AC2000-memory.dmp

Filesize
72KB

Download
memory/2072-26-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-0-0x000007FEF52D3000-0x000007FEF52D4000-memory.dmp

Filesize
4KB

Download
memory/2072-72-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-4-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-10-0x00000000003F0000-0x00000000003FE000-memory.dmp

Filesize
56KB

Download
memory/2072-36-0x0000000000A90000-0x0000000000A9E000-memory.dmp

Filesize
56KB

Download
memory/2072-34-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-38-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download
memory/2072-40-0x0000000000AF0000-0x0000000000B00000-memory.dmp

Filesize
64KB

Download
memory/2072-43-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-42-0x000000001AFD0000-0x000000001B02A000-memory.dmp

Filesize
360KB

Download
memory/2072-45-0x0000000000BA0000-0x0000000000BAE000-memory.dmp

Filesize
56KB

Download
memory/2072-47-0x0000000000BB0000-0x0000000000BC0000-memory.dmp

Filesize
64KB

Download
memory/2072-49-0x0000000000BC0000-0x0000000000BCE000-memory.dmp

Filesize
56KB

Download
memory/2072-51-0x0000000000D00000-0x0000000000D18000-memory.dmp

Filesize
96KB

Download
memory/2072-53-0x0000000000BD0000-0x0000000000BDC000-memory.dmp

Filesize
48KB

Download
memory/2072-55-0x000000001BAB0000-0x000000001BAFE000-memory.dmp

Filesize
312KB

Download
memory/2072-3-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-2-0x000007FEF52D0000-0x000007FEF5CBC000-memory.dmp

Filesize
9.9MB

Download
memory/2072-30-0x0000000000AD0000-0x0000000000AE6000-memory.dmp

Filesize
88KB

Download
memory/2072-1-0x0000000000FD0000-0x000000000135E000-memory.dmp

Filesize
3.6MB

Download