dcrat | 3c5d4007aabc7835b586d15313645af2e823dfad1d487cad46453dc3474e2693

Analysis

max time kernel
60s
max time network
70s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 20:17

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General

Target

8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
Size

827KB
MD5

7d14c283441fdefcf681cc58017bb841
SHA1

cdfe7ca961f11fd078a314335ce8c19f3acf2409
SHA256

8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e
SHA512

413f00a1c2dc19c43bf1a61738ac605c405f4834095a0e410091cfbb10085d56afe8bd99928477b5dec24c3b323c387da1e3bc6680409681a1d66a7318d3eb9f
SSDEEP

12288:sNtD0qKiyhtFrXketHevYS6Rc/OOi1GuHQiEHRu3oDK:snKiyhXket+vYNSi+iEE3oO

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	2264	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2188	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2776	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2920	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2820	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2960	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	3028	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2068	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2756	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1920	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2724	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2700	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2120	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	772	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1884	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1616	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1748	3020	schtasks.exe	29
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2852	3020	schtasks.exe	29

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral21/memory/2608-1-0x0000000001040000-0x0000000001116000-memory.dmp	dcrat
behavioral21/files/0x00050000000197fd-11.dat	dcrat
behavioral21/memory/2496-23-0x0000000000FF0000-0x00000000010C6000-memory.dmp	dcrat

Executes dropped EXE 1 IoCs

pid	Process
2496	Idle.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\spoolsv.exe	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
File opened for modification	C:\Program Files (x86)\Internet Explorer\spoolsv.exe	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
File created	C:\Program Files (x86)\Internet Explorer\f3b6ecef712a24	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
File created	C:\Program Files (x86)\Google\Temp\System.exe	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
File created	C:\Program Files (x86)\Google\Temp\27d1bcfc3c54e0	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.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
2852	schtasks.exe
2820	schtasks.exe
3028	schtasks.exe
1748	schtasks.exe
2188	schtasks.exe
2960	schtasks.exe
1920	schtasks.exe
2724	schtasks.exe
2700	schtasks.exe
1884	schtasks.exe
1616	schtasks.exe
2264	schtasks.exe
2920	schtasks.exe
2068	schtasks.exe
772	schtasks.exe
2776	schtasks.exe
2756	schtasks.exe
2120	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2608	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe
2496	Idle.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
Token: SeDebugPrivilege	2496	Idle.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 2728	2608	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe	48
PID 2608 wrote to memory of 2728	2608	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe	48
PID 2608 wrote to memory of 2728	2608	8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe	48
PID 2728 wrote to memory of 2076	2728	cmd.exe	50
PID 2728 wrote to memory of 2076	2728	cmd.exe	50
PID 2728 wrote to memory of 2076	2728	cmd.exe	50
PID 2728 wrote to memory of 2496	2728	cmd.exe	51
PID 2728 wrote to memory of 2496	2728	cmd.exe	51
PID 2728 wrote to memory of 2496	2728	cmd.exe	51

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\8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe
"C:\Users\Admin\AppData\Local\Temp\8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\qNwTt2I68S.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Windows\system32\w32tm.exe
    w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
    3⤵
    PID:2076
- - C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\Idle.exe
    "C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\Idle.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2496

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Internet Explorer\spoolsv.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2264

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files (x86)\Internet Explorer\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Internet Explorer\spoolsv.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2776

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\services.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2920

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2820

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "servicess" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\{90140000-0044-0409-0000-0000000FF1CE}-C\services.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2960

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 8 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\Idle.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3028

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2068

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 12 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\Idle.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2756

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1920

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2724

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Google\Temp\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2700

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 12 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\OSPPSVC.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2120

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVC" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:772

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "OSPPSVCO" /sc MINUTE /mo 12 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\OSPPSVC.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1884

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1616

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1748

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 8 /tr "'C:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2852

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:\Recovery\31f19e42-8726-11ef-be9a-dab21757c799\OSPPSVC.exe

Filesize
827KB

MD5
7d14c283441fdefcf681cc58017bb841

SHA1
cdfe7ca961f11fd078a314335ce8c19f3acf2409

SHA256
8601303574d298fe6d9a433d6fab9854ff5fb81d357d01f5065dccdb4407bb8e

SHA512
413f00a1c2dc19c43bf1a61738ac605c405f4834095a0e410091cfbb10085d56afe8bd99928477b5dec24c3b323c387da1e3bc6680409681a1d66a7318d3eb9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\qNwTt2I68S.bat

Filesize
222B

MD5
03a3849f17461e4fc957063a1396c8f5

SHA1
edca6025431b5e1b29bdce167ff9a921529add47

SHA256
14c3ec6c356fb4fc2ca273920a34de8ec41bd816bbc3fad3fc3fa43a4dec0cc8

SHA512
e6314d76e9bf9734434433a5523beba2363baf4b05da943a6b41283bb2ba466248158fff2492ab5fd88470a02dd2179967ee8a34444d6acefe5633494c47c499

Download Submit
memory/2496-23-0x0000000000FF0000-0x00000000010C6000-memory.dmp

Filesize
856KB

Download
memory/2608-0-0x000007FEF5A93000-0x000007FEF5A94000-memory.dmp

Filesize
4KB

Download
memory/2608-1-0x0000000001040000-0x0000000001116000-memory.dmp

Filesize
856KB

Download
memory/2608-2-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download
memory/2608-19-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp

Filesize
9.9MB

Download