dcrat | 628e668b234ae912b337b5ed8a9edb0baf44c6f2f0a297c1e6fc354262a37bad

Analysis

max time kernel
98s
max time network
152s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
07-12-2024 15:13

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General

Target

Zoraraclear.exe
Size

3.0MB
MD5

2bbcb2eb310ae73cd05c024afee324fb
SHA1

4d477371119a135e2c9e65ada34547afe65347a5
SHA256

628e668b234ae912b337b5ed8a9edb0baf44c6f2f0a297c1e6fc354262a37bad
SHA512

704a49e72fe03db76ec71e68b8309d3ad2c1c5e4b2042c68dbb383dc5502ebc5e96eb12b83c79cdcfbf1a8ebb04ffb11670628a1cb0bb49ebc617044ca5679be
SSDEEP

49152:SBJo0KE3fGUa/34OEOnhHLe7kSb+e39EP9Xe7inp7xLXzslyoDs:EC0KIGUaPh5ySP9Xe7qRxLjslFA

Score

10^/10

dcrat discovery 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

Checks computer location settings 2 TTPs 4 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-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	Zoraraclear.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	DCRatBuild.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	portreviewCommon.exe

Executes dropped EXE 4 IoCs

pid	Process
240	DCRatBuild.exe
4824	Zorara.exe
4996	portreviewCommon.exe
3020	taskhostw.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4824	Zorara.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office 15\ClientX64\55b276f4edf653	portreviewCommon.exe
File created	C:\Program Files\Microsoft Office 15\ClientX64\StartMenuExperienceHost.exe	portreviewCommon.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\LiveKernelReports\sysmon.exe	portreviewCommon.exe
File created	C:\Windows\LiveKernelReports\121e5b5079f7c0	portreviewCommon.exe

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 4 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	Zoraraclear.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DCRatBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1669812756-2240353048-2660728061-1000_Classes\Local Settings	DCRatBuild.exe
Key created	\REGISTRY\USER\S-1-5-21-1669812756-2240353048-2660728061-1000_Classes\Local Settings	portreviewCommon.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe
4996	portreviewCommon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	portreviewCommon.exe
Token: SeDebugPrivilege	3020	taskhostw.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 240	3996	Zoraraclear.exe	80
PID 3996 wrote to memory of 240	3996	Zoraraclear.exe	80
PID 3996 wrote to memory of 240	3996	Zoraraclear.exe	80
PID 3996 wrote to memory of 4824	3996	Zoraraclear.exe	81
PID 3996 wrote to memory of 4824	3996	Zoraraclear.exe	81
PID 240 wrote to memory of 3184	240	DCRatBuild.exe	82
PID 240 wrote to memory of 3184	240	DCRatBuild.exe	82
PID 240 wrote to memory of 3184	240	DCRatBuild.exe	82
PID 3184 wrote to memory of 1524	3184	WScript.exe	90
PID 3184 wrote to memory of 1524	3184	WScript.exe	90
PID 3184 wrote to memory of 1524	3184	WScript.exe	90
PID 1524 wrote to memory of 4996	1524	cmd.exe	92
PID 1524 wrote to memory of 4996	1524	cmd.exe	92
PID 4996 wrote to memory of 792	4996	portreviewCommon.exe	93
PID 4996 wrote to memory of 792	4996	portreviewCommon.exe	93
PID 792 wrote to memory of 1544	792	cmd.exe	95
PID 792 wrote to memory of 1544	792	cmd.exe	95
PID 792 wrote to memory of 3288	792	cmd.exe	96
PID 792 wrote to memory of 3288	792	cmd.exe	96
PID 792 wrote to memory of 3020	792	cmd.exe	97
PID 792 wrote to memory of 3020	792	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\Zoraraclear.exe
"C:\Users\Admin\AppData\Local\Temp\Zoraraclear.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:240
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\HyperreviewWincommon\0APkIItdJuTMwiSED3qMQuncpJddgwxYvhrJ.vbe"
    3⤵
    - Checks computer location settings
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3184
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\HyperreviewWincommon\G389UpYDqsyTn8FeSKOfwJ022GejG1.bat" "
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1524
    - - C:\HyperreviewWincommon\portreviewCommon.exe
        
        "C:\HyperreviewWincommon/portreviewCommon.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        Drops file in Program Files directory
        Drops file in Windows directory
        Modifies registry class
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:4996
      - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\EqHjOQP0ra.bat"
        6⤵
        Suspicious use of WriteProcessMemory
        
        PID:792
        
        C:\Windows\system32\chcp.com
        
        chcp 65001
        7⤵
        
        PID:1544
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        7⤵
        
        PID:3288
        
        C:\HyperreviewWincommon\taskhostw.exe
        
        "C:\HyperreviewWincommon\taskhostw.exe"
        7⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:3020
- C:\Users\Admin\AppData\Local\Temp\Zorara.exe
  "C:\Users\Admin\AppData\Local\Temp\Zorara.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\HyperreviewWincommon\0APkIItdJuTMwiSED3qMQuncpJddgwxYvhrJ.vbe

Filesize
229B

MD5
7c1d3d422cc4568c9a4325d2409a748b

SHA1
a8079bf0f981b9f9936a2547a8807bdb27f9c9fe

SHA256
1cc02cd69855ad9f85fbf3c7b47d33687c0565ba65b845653bb449693a179b8e

SHA512
82adf7ecb692bc6a5a58eac8b0233a637b819c7623eebb1654336304b3f90cf28ab667b70e9d21b54663a521e2cd5fc4dd2d93234df40fe19bd3356d4be8d553

Download Submit
C:\HyperreviewWincommon\G389UpYDqsyTn8FeSKOfwJ022GejG1.bat

Filesize
109B

MD5
e7cad9e2e20d4e5ecf20c2001a0efa17

SHA1
b334bb6e63edfaf0641a13c4af036ee3da98306d

SHA256
cb179ab0ce771d571669600c2007065f4ee6921467294c02a213a9177efc4c44

SHA512
83329d1641230cb2fd2f056dc721b226869ab9c4ac305efb5dd3ff2e462b9be1a85d855593478405e7da36d141b312f4ebd35e2f741e2eb4e6bbb9e07932e88d

Download Submit
C:\HyperreviewWincommon\portreviewCommon.exe

Filesize
1.9MB

MD5
e28077697ca723b6f179b20f3827d0b8

SHA1
9d4aa3c95498559b9f56eacdf75312e9c1202c9f

SHA256
f266a8f40e42999a2c3d502b27af5d2872e672258e36d97da643730667794d55

SHA512
b085d8c27c11f89213b4b9b337705c2d2020e2885f3d466bcc666fb3ebd24e8d34c9bd323c398178423eecea3a9f7de2cc030b0b79989a8660d7b2a0e5b3ee44

Download Submit
C:\Users\Admin\AppData\Local\Temp\DCRatBuild.exe

Filesize
2.2MB

MD5
42bebbc9ea503be1c3c78ac680e660bd

SHA1
ba7e6e6bdd1ff3fdbd66a6c25a180eaca08cb774

SHA256
d3a100c67a0ab27b0628df13e53b36999059981ffec20422b61a2801fc1f020a

SHA512
acf711b01b8fa27e487d6009644a7640197b44ff5efe6161670b4109b03c629c466c9411e56a51280b100494fd228123738320199cfe9763737dd98fadd13a4c

Download Submit
C:\Users\Admin\AppData\Local\Temp\EqHjOQP0ra.bat

Filesize
213B

MD5
3fb441d441ee14c3eed1190bb146351a

SHA1
ac79eb08a8ed895d06befad48289d8ce268abfe8

SHA256
a3613f269024053a005c6e24c5fb516e38c845b41386a00b672a28e6194e8a04

SHA512
a01ada7ce1798802c07a4bf7aa6a5442cd44edc326095738c03389c8e2c008fbd2026f19f3e5dc640a9176502d643616da4d94d33b04cb3eb4cf131d25f46d63

Download Submit
C:\Users\Admin\AppData\Local\Temp\Zorara.exe

Filesize
803KB

MD5
e63395b9021c27266554fff6b4ed8fab

SHA1
340e1bf4ebabcfda652882fa3789c5d4ab197bc9

SHA256
ff6ca0a62dd38a42391334d1e813b3c5ae223ca580c212d95ba6b80f30a0fac7

SHA512
aaa1f2b379644c619bb4619071e3102ddc23f6b5d810f922c5d159dae5da447785d9e178077b5cd79f9d8823bd49843587e0a8848d2149bb594b276e825784df

Download Submit
memory/3996-24-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4824-26-0x0000013C41590000-0x0000013C416E2000-memory.dmp

Filesize
1.3MB

Download
memory/4824-39-0x0000013C41A80000-0x0000013C41A81000-memory.dmp

Filesize
4KB

Download
memory/4824-25-0x00007FFDE50C3000-0x00007FFDE50C5000-memory.dmp

Filesize
8KB

Download
memory/4996-45-0x0000000000610000-0x0000000000800000-memory.dmp

Filesize
1.9MB

Download
memory/4996-47-0x00000000027C0000-0x00000000027CE000-memory.dmp

Filesize
56KB

Download
memory/4996-49-0x0000000002830000-0x000000000284C000-memory.dmp

Filesize
112KB

Download
memory/4996-50-0x000000001B280000-0x000000001B2D0000-memory.dmp

Filesize
320KB

Download
memory/4996-52-0x000000001B230000-0x000000001B248000-memory.dmp

Filesize
96KB

Download
memory/4996-54-0x000000001B250000-0x000000001B268000-memory.dmp

Filesize
96KB

Download
memory/4996-56-0x0000000002810000-0x000000000281C000-memory.dmp

Filesize
48KB

Download