dcrat | 24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc

Analysis

max time kernel
118s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-11-2024 02:15

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General

Target

24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
Size

775KB
MD5

0ed1f9cb842483e03e36cee538678ffd
SHA1

1d13a84aa671b75f66f4c7fce8339619291d4a43
SHA256

24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc
SHA512

78cb214db0ecbc532a50fc1344a138125e0031485c004e95bc21064165f9fd667fa582cd5196a6e1b4276b6dd7fa1d23dfabfe0c58b0d93fbf8e5329b064a809
SSDEEP

12288:FFg6HIZxWaga+z9e9qJeyLVqlUhqgPXdU2ypi0w8ncqXuvVw4heSNSzLz/:FIrr+h0qJeiqlGVUskcz9w4jI3b

Score

10^/10

dcrat discovery execution 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

DCRat payload 1 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral2/memory/3112-12-0x0000000000400000-0x0000000000478000-memory.dmp	dcrat

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3292	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3556 set thread context of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsass.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1152	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\Local Settings	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1152	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
980	schtasks.exe
3592	schtasks.exe
2320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3292	powershell.exe
3292	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3292	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3556 wrote to memory of 3292	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	96
PID 3556 wrote to memory of 3292	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	96
PID 3556 wrote to memory of 3292	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	96
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3556 wrote to memory of 3112	3556	24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe	97
PID 3372 wrote to memory of 4612	3372	cmd.exe	108
PID 3372 wrote to memory of 4612	3372	cmd.exe	108
PID 3372 wrote to memory of 4612	3372	cmd.exe	108
PID 3372 wrote to memory of 1152	3372	cmd.exe	109
PID 3372 wrote to memory of 1152	3372	cmd.exe	109
PID 3372 wrote to memory of 1152	3372	cmd.exe	109
PID 3372 wrote to memory of 4888	3372	cmd.exe	110
PID 3372 wrote to memory of 4888	3372	cmd.exe	110
PID 3372 wrote to memory of 4888	3372	cmd.exe	110

C:\Users\Admin\AppData\Local\Temp\24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
"C:\Users\Admin\AppData\Local\Temp\24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3556
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3292
- C:\Users\Admin\AppData\Local\Temp\24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe
  "C:\Users\Admin\AppData\Local\Temp\24f719954fbcfd391426579d7f4965d2771f0d2751bed291e6a8dd26228315cc.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:3112
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "dllhost" /sc ONLOGON /tr "'C:\Windows\InputMethod\CHS\dllhost.exe'" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:980
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\msxml6\fontdrvhost.exe'" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3592
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "lsass" /sc ONLOGON /tr "'C:\Windows\System32\d3dramp\lsass.exe'" /rl HIGHEST /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2320
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\vJPMiVidN5.bat"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3372
  - - C:\Windows\SysWOW64\chcp.com
      chcp 65001
      4⤵
      System Location Discovery: System Language Discovery
      PID:4612
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 5 localhost
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1152
  - - C:\Windows\SysWOW64\d3dramp\lsass.exe
      "C:\Windows\System32\d3dramp\lsass.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:4888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_c5cvtj24.h5h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3112-12-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3292-45-0x0000000006CF0000-0x0000000006D0E000-memory.dmp

Filesize
120KB

Download
memory/3292-48-0x0000000007050000-0x000000000706A000-memory.dmp

Filesize
104KB

Download
memory/3292-58-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3292-20-0x0000000005630000-0x0000000005696000-memory.dmp

Filesize
408KB

Download
memory/3292-54-0x0000000007390000-0x00000000073AA000-memory.dmp

Filesize
104KB

Download
memory/3292-53-0x0000000007290000-0x00000000072A4000-memory.dmp

Filesize
80KB

Download
memory/3292-52-0x0000000007280000-0x000000000728E000-memory.dmp

Filesize
56KB

Download
memory/3292-51-0x0000000007250000-0x0000000007261000-memory.dmp

Filesize
68KB

Download
memory/3292-50-0x00000000072D0000-0x0000000007366000-memory.dmp

Filesize
600KB

Download
memory/3292-49-0x00000000070C0000-0x00000000070CA000-memory.dmp

Filesize
40KB

Download
memory/3292-47-0x0000000007690000-0x0000000007D0A000-memory.dmp

Filesize
6.5MB

Download
memory/3292-46-0x0000000006F10000-0x0000000006FB3000-memory.dmp

Filesize
652KB

Download
memory/3292-15-0x00000000023F0000-0x0000000002426000-memory.dmp

Filesize
216KB

Download
memory/3292-16-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3292-17-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3292-18-0x0000000004E10000-0x0000000005438000-memory.dmp

Filesize
6.2MB

Download
memory/3292-19-0x0000000004C60000-0x0000000004C82000-memory.dmp

Filesize
136KB

Download
memory/3292-21-0x00000000056A0000-0x0000000005706000-memory.dmp

Filesize
408KB

Download
memory/3292-35-0x0000000070C70000-0x0000000070CBC000-memory.dmp

Filesize
304KB

Download
memory/3292-55-0x0000000007370000-0x0000000007378000-memory.dmp

Filesize
32KB

Download
memory/3292-32-0x0000000005D00000-0x0000000005D1E000-memory.dmp

Filesize
120KB

Download
memory/3292-28-0x0000000005710000-0x0000000005A64000-memory.dmp

Filesize
3.3MB

Download
memory/3292-33-0x0000000005D90000-0x0000000005DDC000-memory.dmp

Filesize
304KB

Download
memory/3292-34-0x00000000062C0000-0x00000000062F2000-memory.dmp

Filesize
200KB

Download
memory/3556-11-0x0000000000CA0000-0x0000000000D20000-memory.dmp

Filesize
512KB

Download
memory/3556-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3556-14-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3556-2-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/3556-3-0x0000000004DD0000-0x0000000004E62000-memory.dmp

Filesize
584KB

Download
memory/3556-5-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3556-10-0x0000000000920000-0x00000000009C0000-memory.dmp

Filesize
640KB

Download
memory/3556-7-0x0000000005020000-0x000000000502A000-memory.dmp

Filesize
40KB

Download
memory/3556-8-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/3556-9-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/3556-6-0x0000000004DB0000-0x0000000004DBA000-memory.dmp

Filesize
40KB

Download
memory/3556-1-0x00000000002F0000-0x00000000003B4000-memory.dmp

Filesize
784KB

Download
memory/3556-4-0x0000000004E70000-0x0000000004F0C000-memory.dmp

Filesize
624KB

Download