dcrat | 44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd

General

Target

44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
Size

1002KB
MD5

207bc42f918e624c6cbb55afd7838f36
SHA1

e807453a5d2aa9408af19e056d232f1308d4a61d
SHA256

44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd
SHA512

8384b670f55ad02224bc01643dc157481b177b57deaaee7782a1b948edc9babe1e9885b17c82af3abad1eb7a3485290f41f236aa45a5a324469c1c90d93a7490
SSDEEP

24576:0HblYzEUfgfAF78QWWQx+oPmLdaqgFlInS9:w2lNtdaqGD

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

Process spawned unexpected child process 15 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	2108	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1884	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2424	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2220	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1824	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1896	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1040	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2228	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2648	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2776	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2656	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2900	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2052	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2384	2304	schtasks.exe	28
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2860	2304	schtasks.exe	28

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/memory/2292-1-0x00000000012D0000-0x00000000013D2000-memory.dmp	dcrat
behavioral1/files/0x0006000000015f4e-12.dat	dcrat
behavioral1/memory/2644-20-0x0000000000320000-0x0000000000422000-memory.dmp	dcrat

Executes dropped EXE 1 IoCs

pid	Process
2644	wininit.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Sidebar\ja-JP\wininit.exe	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File opened for modification	C:\Program Files\Windows Sidebar\ja-JP\wininit.exe	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Program Files\Windows Sidebar\ja-JP\56085415360792	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\Migration\winlogon.exe	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Windows\Migration\cc11b995f2a76d	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Windows\RemotePackages\RemoteApps\dllhost.exe	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Windows\RemotePackages\RemoteApps\5940a34987c991	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Windows\PLA\System\dllhost.exe	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
File created	C:\Windows\PLA\System\5940a34987c991	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 15 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2108	schtasks.exe
2900	schtasks.exe
2776	schtasks.exe
1884	schtasks.exe
2424	schtasks.exe
1040	schtasks.exe
2648	schtasks.exe
2656	schtasks.exe
2384	schtasks.exe
2228	schtasks.exe
2052	schtasks.exe
2860	schtasks.exe
2220	schtasks.exe
1824	schtasks.exe
1896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2292	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
2644	wininit.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
Token: SeDebugPrivilege	2644	wininit.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 2644	2292	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe	44
PID 2292 wrote to memory of 2644	2292	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe	44
PID 2292 wrote to memory of 2644	2292	44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe	44

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\44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.exe
"C:\Users\Admin\AppData\Local\Temp\44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd.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:2292
- C:\Program Files\Windows Sidebar\ja-JP\wininit.exe
  "C:\Program Files\Windows Sidebar\ja-JP\wininit.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 10 /tr "'C:\Program Files\Windows Sidebar\ja-JP\wininit.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2108

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\ja-JP\wininit.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 "wininitw" /sc MINUTE /mo 14 /tr "'C:\Program Files\Windows Sidebar\ja-JP\wininit.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2424

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Windows\RemotePackages\RemoteApps\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1824

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteApps\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2220

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 5 /tr "'C:\Windows\RemotePackages\RemoteApps\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1896

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 9 /tr "'C:\Windows\PLA\System\dllhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1040

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\PLA\System\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2228

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 8 /tr "'C:\Windows\PLA\System\dllhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2648

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2776

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2656

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\Recovery\209d6542-69f6-11ef-b491-62cb582c238c\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2900

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 12 /tr "'C:\Windows\Migration\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2052

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\Migration\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2384

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Windows\Migration\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2860

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\Migration\winlogon.exe

Filesize
1002KB

MD5
207bc42f918e624c6cbb55afd7838f36

SHA1
e807453a5d2aa9408af19e056d232f1308d4a61d

SHA256
44c0a9eca72bba742f1b8018e870c51b079b76496a34ca1605788cf2c5c3c1bd

SHA512
8384b670f55ad02224bc01643dc157481b177b57deaaee7782a1b948edc9babe1e9885b17c82af3abad1eb7a3485290f41f236aa45a5a324469c1c90d93a7490

Download Submit
memory/2292-0-0x000007FEF5FB3000-0x000007FEF5FB4000-memory.dmp

Filesize
4KB

Download
memory/2292-1-0x00000000012D0000-0x00000000013D2000-memory.dmp

Filesize
1.0MB

Download
memory/2292-2-0x000007FEF5FB0000-0x000007FEF699C000-memory.dmp

Filesize
9.9MB

Download
memory/2292-3-0x0000000000140000-0x000000000015C000-memory.dmp

Filesize
112KB

Download
memory/2292-21-0x000007FEF5FB0000-0x000007FEF699C000-memory.dmp

Filesize
9.9MB

Download
memory/2644-20-0x0000000000320000-0x0000000000422000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads