dcrat | e3f18a036f10a5bf7d92648a32f119bbdf79f3ad750532fcd2f70487a9783a19

Analysis

max time kernel
143s
max time network
147s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
25/07/2024, 13:13

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General

Target

AntiHacks.exe
Size

3.2MB
MD5

e0288245a40e10ff53abf8e72a92886b
SHA1

e7c65a626687c6b3e2f72b9af6f3d4a037654fb9
SHA256

e3f18a036f10a5bf7d92648a32f119bbdf79f3ad750532fcd2f70487a9783a19
SHA512

56b7479c02371b318f3403a1715cf195a3f2fb7df66c718e9168943c79ec38d55252834138ef066f15eda3a62f9a7b2bceac855e5455d31380e11efc422f48ac
SSDEEP

49152:6dsTqXFh3qCd825DyT8iHVmw6M2z0dcTaTfZb2fuYgZW83six0cJIjK3Uv+8sLFC:6d1dWAbkNcyZcuYgE4I258AXy

Score

10^/10

dcrat xworm discovery evasion execution infostealer rat trojan

Malware Config

Extracted

Family

xworm

main-although.gl.at.ply.gg:30970

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000b000000018617-21.dat	family_xworm
behavioral1/memory/2752-23-0x0000000000B20000-0x0000000000B38000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

DCRat payload 3 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x000a000000017447-18.dat	dcrat
behavioral1/files/0x0007000000019080-39.dat	dcrat
behavioral1/memory/1616-44-0x00000000008D0000-0x0000000000B86000-memory.dmp	dcrat

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1224	powershell.exe
2968	powershell.exe
532	powershell.exe
2100	powershell.exe

Disables Task Manager via registry modification
evasion

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	checkinghackMinecraft.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	checkinghackMinecraft.exe

Executes dropped EXE 4 IoCs

pid	Process
2372	shellbag.exe
2748	RuntimeBroker.exe
2752	checkinghackMinecraft.exe
1616	portproviderperf.exe

Loads dropped DLL 2 IoCs

pid	Process
1640	cmd.exe
1640	cmd.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	ip-api.com

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 5 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	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shellbag.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RuntimeBroker.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2204	reg.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1224	powershell.exe
2968	powershell.exe
532	powershell.exe
2100	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	checkinghackMinecraft.exe
Token: SeDebugPrivilege	1224	powershell.exe
Token: SeDebugPrivilege	1616	portproviderperf.exe
Token: SeDebugPrivilege	2968	powershell.exe
Token: SeDebugPrivilege	532	powershell.exe
Token: SeDebugPrivilege	2100	powershell.exe
Token: SeDebugPrivilege	2752	checkinghackMinecraft.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2372	shellbag.exe
2372	shellbag.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2372	2644	AntiHacks.exe	30
PID 2644 wrote to memory of 2372	2644	AntiHacks.exe	30
PID 2644 wrote to memory of 2372	2644	AntiHacks.exe	30
PID 2644 wrote to memory of 2372	2644	AntiHacks.exe	30
PID 2644 wrote to memory of 2748	2644	AntiHacks.exe	31
PID 2644 wrote to memory of 2748	2644	AntiHacks.exe	31
PID 2644 wrote to memory of 2748	2644	AntiHacks.exe	31
PID 2644 wrote to memory of 2748	2644	AntiHacks.exe	31
PID 2644 wrote to memory of 2752	2644	AntiHacks.exe	32
PID 2644 wrote to memory of 2752	2644	AntiHacks.exe	32
PID 2644 wrote to memory of 2752	2644	AntiHacks.exe	32
PID 2748 wrote to memory of 2584	2748	RuntimeBroker.exe	33
PID 2748 wrote to memory of 2584	2748	RuntimeBroker.exe	33
PID 2748 wrote to memory of 2584	2748	RuntimeBroker.exe	33
PID 2748 wrote to memory of 2584	2748	RuntimeBroker.exe	33
PID 2752 wrote to memory of 1224	2752	checkinghackMinecraft.exe	35
PID 2752 wrote to memory of 1224	2752	checkinghackMinecraft.exe	35
PID 2752 wrote to memory of 1224	2752	checkinghackMinecraft.exe	35
PID 2584 wrote to memory of 1640	2584	WScript.exe	37
PID 2584 wrote to memory of 1640	2584	WScript.exe	37
PID 2584 wrote to memory of 1640	2584	WScript.exe	37
PID 2584 wrote to memory of 1640	2584	WScript.exe	37
PID 1640 wrote to memory of 1616	1640	cmd.exe	39
PID 1640 wrote to memory of 1616	1640	cmd.exe	39
PID 1640 wrote to memory of 1616	1640	cmd.exe	39
PID 1640 wrote to memory of 1616	1640	cmd.exe	39
PID 2752 wrote to memory of 2968	2752	checkinghackMinecraft.exe	40
PID 2752 wrote to memory of 2968	2752	checkinghackMinecraft.exe	40
PID 2752 wrote to memory of 2968	2752	checkinghackMinecraft.exe	40
PID 2752 wrote to memory of 532	2752	checkinghackMinecraft.exe	42
PID 2752 wrote to memory of 532	2752	checkinghackMinecraft.exe	42
PID 2752 wrote to memory of 532	2752	checkinghackMinecraft.exe	42
PID 1640 wrote to memory of 2204	1640	cmd.exe	44
PID 1640 wrote to memory of 2204	1640	cmd.exe	44
PID 1640 wrote to memory of 2204	1640	cmd.exe	44
PID 1640 wrote to memory of 2204	1640	cmd.exe	44
PID 2752 wrote to memory of 2100	2752	checkinghackMinecraft.exe	45
PID 2752 wrote to memory of 2100	2752	checkinghackMinecraft.exe	45
PID 2752 wrote to memory of 2100	2752	checkinghackMinecraft.exe	45

C:\Users\Admin\AppData\Local\Temp\AntiHacks.exe
"C:\Users\Admin\AppData\Local\Temp\AntiHacks.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Users\Admin\AppData\Local\Temp\shellbag.exe
  "C:\Users\Admin\AppData\Local\Temp\shellbag.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2372
- C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
  "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\SurrogatewinDrivernetsvc\sVkY0feTF0k.vbe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2584
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\SurrogatewinDrivernetsvc\qbWCF1w5.bat" "
      4⤵
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1640
    - - C:\SurrogatewinDrivernetsvc\portproviderperf.exe
        
        "C:\SurrogatewinDrivernetsvc\portproviderperf.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:1616
    - - C:\Windows\SysWOW64\reg.exe
        
        reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
        5⤵
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2204
- C:\Users\Admin\AppData\Local\Temp\checkinghackMinecraft.exe
  "C:\Users\Admin\AppData\Local\Temp\checkinghackMinecraft.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\checkinghackMinecraft.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1224
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'checkinghackMinecraft.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2968
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:532
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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:\SurrogatewinDrivernetsvc\qbWCF1w5.bat

Filesize
162B

MD5
e01ef91219b266b14d1ae415d30256d5

SHA1
cad006a2efee48fcad1166e7ce3bc118ff139808

SHA256
db58b3dde8508ecbe59d938545246355b52d9cdec29f76657b66638c4d7aeeb2

SHA512
7826ca4bda02431bff87c7c72bd1ea53bc769b8574302a37445318360326e5a89e309c35dbc8f9981ec35c5067b4a459195b78d0289f5d93f6ec54be4c3f1e7b

Download Submit
C:\SurrogatewinDrivernetsvc\sVkY0feTF0k.vbe

Filesize
209B

MD5
dff0ba210d60370a3210fbf77409987f

SHA1
dde49d39fcbd1fdef91262c3606dc428efb8edfa

SHA256
79720c3c313e1bdd57e0ddd8824ea9d0792b37388d0e7f06e9fddb07e63241ab

SHA512
a9a619f85ba84275a1dea2728201eeace31819a8654058e316edf701baa78370600719ad4100d6f7c3a505c88417730c968cf57a03b3b2b067979d9123f634a7

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

Filesize
3.0MB

MD5
02a93a43adbbdfcdeb26c8103fe6696f

SHA1
3e1868a55003bc3e3e3f12194a9c79278dd82ffa

SHA256
826cd4f11e7de9cf540c894d23ba1164d14abe8df3fbb3edcf3b7052db1e45ee

SHA512
bfd5e591186fc35db75298954340f7c13c9a42d525641f5d953db0bd708abb6bf8fbe54ffe37bfd37ded72be63e2885b7544ae3b8126410864d78411bf025f0c

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

Filesize
71KB

MD5
ed3794861ddc34b4748ff8081e80cb2b

SHA1
e63cf084552f0c2803de0109e3d2fcd3102c4738

SHA256
6af19a694c8c3e6860d2555ce16be115c599c3424ec1e01c0bf67acd3298ae0f

SHA512
df771b8eecb7e065628c06b8cca9aa7df6dd05bbdba0f85ed34010e264a286a17129289d6ac3e9f87c56152ed7a35302e88ae6643a1bb06c45745cf3d5ea0b03

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

Filesize
1.6MB

MD5
463058236a0d84f8f8982d946eed0e07

SHA1
800ab71ed3b3bf4fb67fc9e1628e59d0aab8b124

SHA256
c93a0f4c6b5f24ee31cddb92b0ea3337021b5fb91faae8a381d3bd2c9b6add54

SHA512
18bd9aea8489c5e873a679da92c83d2739de9532f5751bd23aea9eda226b9a95909f8fd525b0ce47859492997002aee32ecf37bb79e07f24b512287b8fd58a53

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
6d591157394532bcf0f7abf89d723d73

SHA1
fb11dee5e83758fb4be63630f67c06856d493ab4

SHA256
0705f598ffa0a88c84c3a6fc7d6516c5cd865e805c848219eeb69d71d9736d40

SHA512
5b03fccc251ee20038f746b633263d0b07ddd2fc39cdac8d915e2ca1de9d9fe1e79bf7bff5894eb3af004232d5883df01b4b3241f778e341b559cf13f4f81c1c

Download Submit
\SurrogatewinDrivernetsvc\portproviderperf.exe

Filesize
2.7MB

MD5
ccb3ede1b16f1040b8050978c107cd88

SHA1
0c5daee4db896be5f6e24076eba13d73958f35b0

SHA256
55013eeda207f51fa0e08e6c73193c56cc894c31e66dd08f8a7a085bad349fa0

SHA512
387c524522afdac4916fbb9c39e6dc137c922f27e534bd1cf1ec98bac357fc9c7add2de5ef70e5d6cdca0e1cbc9f7bd43b80cf9a9add6728234758e1e81f7e56

Download Submit
memory/1224-43-0x000000001B460000-0x000000001B742000-memory.dmp

Filesize
2.9MB

Download
memory/1224-45-0x0000000002A70000-0x0000000002A78000-memory.dmp

Filesize
32KB

Download
memory/1616-53-0x00000000003D0000-0x00000000003DE000-memory.dmp

Filesize
56KB

Download
memory/1616-44-0x00000000008D0000-0x0000000000B86000-memory.dmp

Filesize
2.7MB

Download
memory/2100-64-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2372-13-0x0000000000400000-0x0000000000572000-memory.dmp

Filesize
1.4MB

Download
memory/2372-12-0x0000000000400000-0x0000000000572000-memory.dmp

Filesize
1.4MB

Download
memory/2372-14-0x0000000000400000-0x0000000000572000-memory.dmp

Filesize
1.4MB

Download
memory/2372-70-0x0000000000400000-0x0000000000572000-memory.dmp

Filesize
1.4MB

Download
memory/2372-11-0x0000000000409000-0x000000000040A000-memory.dmp

Filesize
4KB

Download
memory/2644-0-0x000007FEF5FE3000-0x000007FEF5FE4000-memory.dmp

Filesize
4KB

Download
memory/2644-1-0x000000013F870000-0x000000013FBAA000-memory.dmp

Filesize
3.2MB

Download
memory/2644-24-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download
memory/2644-9-0x000007FEF5FE0000-0x000007FEF69CC000-memory.dmp

Filesize
9.9MB

Download
memory/2752-23-0x0000000000B20000-0x0000000000B38000-memory.dmp

Filesize
96KB

Download
memory/2968-52-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download
memory/2968-51-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

Filesize
2.9MB

Download