darkcloud | ecb74c4557335471c87931a3b174ae49993f40593e652044f826d18a9d5fdc32

Analysis

max time kernel
298s
max time network
288s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
29/07/2026, 04:01

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General

Target
RFQ 3177939 PRHO71.js
Size 4.8MB
Sample260729-elfcwsteph
SHA256 ecb74c4557335471c87931a3b174ae49993f40593e652044f826d18a9d5fdc32
MD5 9fefcd85e3b1be82a5b25962ced1a700
SHA1 9034c32b8ed54f1d767514fbe77d53a74eeb74f2
SHA512 1b12c02f195021a9ea522d517a899fb13dc56b6441608a120340922152b4a9eb44438c1159ea8af987ea34846a7d86faeeed58d6371f2141ef83b4709a9b2002
SSDEEP 49152:DqPu4bxlsZTY8bfSBZtOR3CuzV8ZEyGAtdRA8fGW:E
TLSH
T1713609B1159EA1651929379EECC808184B0DCC110A977FA8B4DE0BD8DF0F5936EE4FDA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution darkcloud persistence privilege_escalation stealer

Malware Config

Extracted

Family

darkcloud

Version

Attributes

email_from
[email protected]
email_to
[email protected]
host_password
haDgAlL&/L7fqNQP
host_server
mail.trimnt.com

Signatures

Family: DarkCloud
An information stealer written in Visual Basic.
stealer darkcloud

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1772	powershell.exe

Creates a file in the Startup directory 1 TTPs 1 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

persistence privilege_escalation

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SystemUpdate_ps_zkpbDHJ0vout_1785297692218.lnk	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_ps_zkpbDHJ0vout_1785297692218 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_zkpbDHJ0vout_1785297692218.ps1\""	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SystemUpdate_ps_zkpbDHJ0vout_1785297692218 = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File \"C:\\Temp\\ps_zkpbDHJ0vout_1785297692218.ps1\""	wscript.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral1/memory/1772-23-0x0000020C70BE0000-0x0000020C70BF4000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1772 set thread context of 4688	1772	powershell.exe	102

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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 1 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	aspnet_compiler.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1772	powershell.exe
1772	powershell.exe
3928	powershell.exe
3928	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe
1772	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4688	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1772	powershell.exe
Token: SeDebugPrivilege	3928	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4688	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1772	2380	wscript.exe	87
PID 1772 wrote to memory of 2852	1772	powershell.exe	94
PID 1772 wrote to memory of 2196	1772	powershell.exe	95
PID 1772 wrote to memory of 1716	1772	powershell.exe	96
PID 1772 wrote to memory of 1944	1772	powershell.exe	97
PID 1772 wrote to memory of 3380	1772	powershell.exe	98
PID 1772 wrote to memory of 4688	1772	powershell.exe	102
PID 1772 wrote to memory of 4688	1772	powershell.exe	102
PID 1772 wrote to memory of 4688	1772	powershell.exe	102
PID 1772 wrote to memory of 4688	1772	powershell.exe	102
PID 1772 wrote to memory of 4688	1772	powershell.exe	102

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\RFQ 3177939 PRHO71.js"
1⤵
- Creates a file in the Startup directory
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -NonInteractive -NoLogo -File "C:\Temp\ps_zkpbDHJ0vout_1785297692218.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1772
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2852
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:2196
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1716
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1944
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3380
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:4688

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3928

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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

ps_zkpbDHJ0vout_1785297692218.ps1

Path C:\Temp\ps_zkpbDHJ0vout_1785297692218.ps1
Size 3.5MB
SHA256 e44fa110e8b92420fb2f774c9ca74aa0e27244236c11c8c2f2d4dedf04ae91b4
MD5 1c68e31bb6f32ee4fcf60c6819a2b2e0
SHA1 849a7a4986dcbf2e290e5794cd55f9f1be49ba14
SHA512 e6d0a3d40d0ad2d1d4b03781659a84810614d9793314d018ab11bd559524d9767ed45a4bd3d71beed978c84bfdf38d92ec935719ea315dff8d0717dab287dac1
SSDEEP 24576:Cjk4RUt/m8SZcVNue7qD7OveYw/Q0SPeaZr9u+keWwK2KTw5uZ+we59MLAd2/DUg:C
TLSH
T104F5792A333434F653D59C6F9668A78D822A3A5FADC3642D1079F7522DD3302FEE6109
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

__PSScriptPolicyTest_qz4bitfb.xbn.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qz4bitfb.xbn.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/1772-24-0x0000020C70BF0000-0x0000020C70BF6000-memory.dmp

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memory/1772-5-0x0000020C70A50000-0x0000020C70A72000-memory.dmp

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memory/1772-23-0x0000020C70BE0000-0x0000020C70BF4000-memory.dmp

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memory/1772-2-0x0000020C6E120000-0x0000020C6E130000-memory.dmp

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memory/1772-25-0x0000020C6E120000-0x0000020C6E130000-memory.dmp

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memory/3928-12-0x000001AE30B30000-0x000001AE30B40000-memory.dmp

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memory/3928-13-0x000001AE30B30000-0x000001AE30B40000-memory.dmp

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memory/3928-21-0x000001AE335B0000-0x000001AE335F4000-memory.dmp

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memory/3928-22-0x000001AE33A20000-0x000001AE33A96000-memory.dmp

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memory/3928-31-0x000001AE30B30000-0x000001AE30B40000-memory.dmp

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memory/3928-30-0x000001AE30B30000-0x000001AE30B40000-memory.dmp

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memory/4688-26-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/4688-27-0x0000000000400000-0x000000000047F000-memory.dmp

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