dcrat | 52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 03:19

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General

Target

52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
Size

1.2MB
MD5

fed24fca9235528a9e0a686ff60b723d
SHA1

e497808ca573e7dfd2e4d99d2c085ab9724707e0
SHA256

52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288
SHA512

2c1699f394a6c8708cd13f53e7df631b7548d72bb46b035963044c1f6c73b84ebba1e1adc02fe5f22d2aae31470bc9e61cce623cbdee3682c54b387befb7b999
SSDEEP

12288:90b329aw7HMGuBrwRCRa+XplQBuK7hEefjf05gRyC7Z3M6xqPhbqOEJv005vnhJb:98yaw7HMHXRa+y7htfxRr2EgKt0O8C3

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 12 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	2496	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2796	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2996	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2772	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2804	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2636	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2712	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2684	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2444	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1768	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3032	2244	schtasks.exe	30
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2292	2244	schtasks.exe	30

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/308-1-0x0000000000950000-0x0000000000A8C000-memory.dmp	dcrat
behavioral1/files/0x0008000000016cd7-16.dat	dcrat
behavioral1/memory/2288-23-0x0000000000DE0000-0x0000000000F1C000-memory.dmp	dcrat

Executes dropped EXE 1 IoCs

pid	Process
2288	explorer.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Media Player\1a78d1ea47a7f9	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
File created	C:\Program Files (x86)\Microsoft Synchronization Services\lsm.exe	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
File created	C:\Program Files (x86)\Microsoft Synchronization Services\101b941d020240	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
File created	C:\Program Files\Windows Media Player\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
File opened for modification	C:\Program Files\Windows Media Player\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.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 12 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2444	schtasks.exe
2292	schtasks.exe
2796	schtasks.exe
2772	schtasks.exe
2712	schtasks.exe
2636	schtasks.exe
2684	schtasks.exe
1768	schtasks.exe
3032	schtasks.exe
2496	schtasks.exe
2996	schtasks.exe
2804	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe
2288	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
Token: SeDebugPrivilege	2288	explorer.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 2288	308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe	43
PID 308 wrote to memory of 2288	308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe	43
PID 308 wrote to memory of 2288	308	52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe	43

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\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe
"C:\Users\Admin\AppData\Local\Temp\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:308
- C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe
  "C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2288

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d2885" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Media Player\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2496

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288" /sc ONLOGON /tr "'C:\Program Files\Windows Media Player\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2796

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d2885" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Media Player\52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2996

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2772

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2804

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "explorere" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2636

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\lsm.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2712

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\lsm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2684

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "lsml" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\lsm.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2444

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1768

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\csrss.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 "csrssc" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0117-0409-0000-0000000FF1CE}-C\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2292

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\explorer.exe

Filesize
1.2MB

MD5
fed24fca9235528a9e0a686ff60b723d

SHA1
e497808ca573e7dfd2e4d99d2c085ab9724707e0

SHA256
52fd5f4ce18c0d8ee4fce41364371d39bf024d3be241cc4f765a6c73cff1d288

SHA512
2c1699f394a6c8708cd13f53e7df631b7548d72bb46b035963044c1f6c73b84ebba1e1adc02fe5f22d2aae31470bc9e61cce623cbdee3682c54b387befb7b999

Download Submit
memory/308-0-0x000007FEF5E63000-0x000007FEF5E64000-memory.dmp

Filesize
4KB

Download
memory/308-1-0x0000000000950000-0x0000000000A8C000-memory.dmp

Filesize
1.2MB

Download
memory/308-2-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp

Filesize
9.9MB

Download
memory/308-3-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/308-4-0x0000000000560000-0x000000000057C000-memory.dmp

Filesize
112KB

Download
memory/308-5-0x0000000000580000-0x000000000058C000-memory.dmp

Filesize
48KB

Download
memory/308-6-0x0000000000910000-0x000000000091E000-memory.dmp

Filesize
56KB

Download
memory/308-7-0x00000000006A0000-0x00000000006AC000-memory.dmp

Filesize
48KB

Download
memory/308-21-0x000007FEF5E60000-0x000007FEF684C000-memory.dmp

Filesize
9.9MB

Download
memory/2288-23-0x0000000000DE0000-0x0000000000F1C000-memory.dmp

Filesize
1.2MB

Download