dcrat | b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72

General

Target

b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
Size

2.3MB
MD5

95ce095073ce57e823674de34b621cdb
SHA1

129a46af1ad0ad1a15f6f3df3e1ee5e1147ae004
SHA256

b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72
SHA512

e16251a67637a09771d3962fca4fa92ac5f58483cff8cbf29c94f0eb0237f30deed49036a724cff32b0942715334865c2bb06084fefb0872551181c8e6accb28
SSDEEP

49152:bSrudTH6WUww8iz704mELP36hEgMMFzFOIh:GrudTHu0ivwELP38MMhFOIh

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

Process spawned unexpected child process 18 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2760	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2712	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2044	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2596	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2640	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2844	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1076	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	536	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	548	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	644	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3004	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2672	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1832	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2176	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1060	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2768	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1772	2776	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2564	2776	schtasks.exe	30

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/2312-1-0x00000000010A0000-0x00000000012F0000-memory.dmp	dcrat
behavioral1/files/0x0006000000019214-17.dat	dcrat
behavioral1/memory/2120-27-0x0000000000F30000-0x0000000001180000-memory.dmp	dcrat

Executes dropped EXE 1 IoCs

pid	Process
2120	OSPPSVC.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files\7-Zip\Lang\0a1fd5f707cd16	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
File created	C:\Program Files (x86)\Windows Media Player\Icons\WmiPrvSE.exe	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
File created	C:\Program Files (x86)\Internet Explorer\it-IT\explorer.exe	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
File created	C:\Program Files (x86)\Internet Explorer\it-IT\7a0fd90576e088	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
File created	C:\Program Files\7-Zip\Lang\sppsvc.exe	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 18 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1060	schtasks.exe
2640	schtasks.exe
1076	schtasks.exe
3004	schtasks.exe
2672	schtasks.exe
2176	schtasks.exe
2712	schtasks.exe
2044	schtasks.exe
536	schtasks.exe
548	schtasks.exe
644	schtasks.exe
2564	schtasks.exe
1772	schtasks.exe
2760	schtasks.exe
2596	schtasks.exe
2844	schtasks.exe
1832	schtasks.exe
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2312	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
2120	OSPPSVC.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
Token: SeDebugPrivilege	2120	OSPPSVC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2120	2312	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe	49
PID 2312 wrote to memory of 2120	2312	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe	49
PID 2312 wrote to memory of 2120	2312	b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe	49

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.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe
"C:\Users\Admin\AppData\Local\Temp\b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\OSPPSVC.exe
  "C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\OSPPSVC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2120

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 10 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2760

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\winlogon.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 "winlogonw" /sc MINUTE /mo 9 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2044

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 6 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\OSPPSVC.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2596

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2640

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 11 /tr "'C:\Recovery\8cdd6da2-3d81-11ef-9400-f2a3cf4ad94f\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2844

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 12 /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:1076

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:536

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 11 /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:548

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Internet Explorer\it-IT\explorer.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Program Files (x86)\Internet Explorer\it-IT\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3004

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Internet Explorer\it-IT\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2672

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Program Files\7-Zip\Lang\sppsvc.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1832

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files\7-Zip\Lang\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2176

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\Program Files\7-Zip\Lang\sppsvc.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1060

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\WmiPrvSE.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\WmiPrvSE.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 "WmiPrvSEW" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\WmiPrvSE.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\7-Zip\Lang\sppsvc.exe

Filesize
2.3MB

MD5
95ce095073ce57e823674de34b621cdb

SHA1
129a46af1ad0ad1a15f6f3df3e1ee5e1147ae004

SHA256
b90b75dcc06003408ea406424ae16179137d2a39d2092d26c25677122479ed72

SHA512
e16251a67637a09771d3962fca4fa92ac5f58483cff8cbf29c94f0eb0237f30deed49036a724cff32b0942715334865c2bb06084fefb0872551181c8e6accb28

Download Submit
memory/2120-30-0x0000000000420000-0x0000000000432000-memory.dmp

Filesize
72KB

Download
memory/2120-29-0x0000000000EC0000-0x0000000000F16000-memory.dmp

Filesize
344KB

Download
memory/2120-27-0x0000000000F30000-0x0000000001180000-memory.dmp

Filesize
2.3MB

Download
memory/2312-3-0x00000000003C0000-0x00000000003DC000-memory.dmp

Filesize
112KB

Download
memory/2312-4-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/2312-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2312-7-0x0000000000A40000-0x0000000000A4E000-memory.dmp

Filesize
56KB

Download
memory/2312-8-0x0000000000A50000-0x0000000000A58000-memory.dmp

Filesize
32KB

Download
memory/2312-5-0x00000000005C0000-0x0000000000616000-memory.dmp

Filesize
344KB

Download
memory/2312-0-0x000007FEF52B3000-0x000007FEF52B4000-memory.dmp

Filesize
4KB

Download
memory/2312-28-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

Filesize
9.9MB

Download
memory/2312-2-0x000007FEF52B0000-0x000007FEF5C9C000-memory.dmp

Filesize
9.9MB

Download
memory/2312-1-0x00000000010A0000-0x00000000012F0000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads