darkcloud | 0bde9a627fcf3cf089507cbf26b24268b067481c45b1df9443a7c660ef6e3906

Analysis

max time kernel
146s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20250314-es
resource tags

arch:x64arch:x86image:win10v2004-20250314-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
26/03/2025, 11:11

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General

Target

transferencias.exe
Size

137KB
MD5

0edead730d80f99bca2b4b960a174f7d
SHA1

f886a913f4a2cd4afa95fb7c03e8a557a89bcfe5
SHA256

a3a6e6782391ceca1b29065e7755ae159d588a6ecae1c1e189f8781476bbb2a9
SHA512

e068161644aabf6b42cce956ac3a36711f2651251019088750298718089cff8155f4dc7afcf39d8af1ecec7b9a5c9d1d2d1d30cd156652e0893e3e202681ffaa
SSDEEP

3072:d4S2vrjXvpdfSC943hfS7ee1QqNGYIW54U4+0LUGvkkzDnhaW:dgrjXvpdJ43hfS7p1QqI8Gv/Hh

Score

10^/10

darkcloud discovery stealer

Malware Config

Extracted

Family

darkcloud

Credentials

Protocol: ftp
Host:
@StrFtpServer
Port:
21
Username:
@StrFtpUser
Password:
@StrFtpPass

Signatures

DarkCloud
An information stealer written in Visual Basic.
stealer darkcloud
Darkcloud family
darkcloud

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4828 created 3448	4828	transferencias.exe	56

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsBrowserDisplay.vbs	transferencias.exe
File opened for modification	\??\c:\users\admin\appdata\roaming\microsoft\windows\start menu\programs\startup\isbrowserdisplay.vbs	taskmgr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4828 set thread context of 1020	4828	transferencias.exe	96

System Location Discovery: System Language Discovery 1 TTPs 2 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	transferencias.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
4828	transferencias.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4828	transferencias.exe
Token: SeDebugPrivilege	4828	transferencias.exe
Token: SeDebugPrivilege	836	taskmgr.exe
Token: SeSystemProfilePrivilege	836	taskmgr.exe
Token: SeCreateGlobalPrivilege	836	taskmgr.exe
Token: 33	836	taskmgr.exe
Token: SeIncBasePriorityPrivilege	836	taskmgr.exe

Suspicious use of FindShellTrayWindow 42 IoCs

pid	Process
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe

Suspicious use of SendNotifyMessage 42 IoCs

pid	Process
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe
836	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1020	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96
PID 4828 wrote to memory of 1020	4828	transferencias.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3448
- C:\Users\Admin\AppData\Local\Temp\transferencias.exe
  "C:\Users\Admin\AppData\Local\Temp\transferencias.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1020
- C:\Windows\system32\taskmgr.exe
  "C:\Windows\system32\taskmgr.exe" /4
  2⤵
  - Drops startup file
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IsBrowserDisplay.vbs

Filesize
91B

MD5
6ed09806ad7eeee48357ded7215afbfe

SHA1
520677c6703aae29853481a1692443e100d1c1cd

SHA256
d06134b969a482c9ff9b8cfe05f349e62c43a9c1f0b75377d48523b256c4d7b5

SHA512
75818330a907876840789a4cd9e8a677f8e33b9310a6988ecf8ed5de8684968f1140d0a8ffb87d274081d9c7438a322766d7f488ec5b8a8ce869cb40c23d3053

Download Submit
memory/1020-1362-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/1020-1374-0x0000000000400000-0x000000000045C000-memory.dmp

Filesize
368KB

Download
memory/4828-0-0x000000007503E000-0x000000007503F000-memory.dmp

Filesize
4KB

Download
memory/4828-1-0x0000000000EB0000-0x0000000000ED8000-memory.dmp

Filesize
160KB

Download
memory/4828-2-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-3-0x00000000065A0000-0x00000000066D6000-memory.dmp

Filesize
1.2MB

Download
memory/4828-4-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-67-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-47-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-29-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-27-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-25-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-21-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-19-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-17-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-15-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-13-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-11-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-7-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-5-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-23-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-9-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-65-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-63-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-61-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-59-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-57-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-55-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-53-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-51-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-49-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-45-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-43-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-41-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-39-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-37-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-35-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-33-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-31-0x00000000065A0000-0x00000000066D1000-memory.dmp

Filesize
1.2MB

Download
memory/4828-1340-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-1341-0x0000000005C80000-0x0000000005C8A000-memory.dmp

Filesize
40KB

Download
memory/4828-1342-0x00000000067B0000-0x0000000006840000-memory.dmp

Filesize
576KB

Download
memory/4828-1343-0x0000000006A10000-0x0000000006A9C000-memory.dmp

Filesize
560KB

Download
memory/4828-1344-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

Filesize
304KB

Download
memory/4828-1345-0x0000000007280000-0x0000000007824000-memory.dmp

Filesize
5.6MB

Download
memory/4828-1346-0x0000000006CD0000-0x0000000006D24000-memory.dmp

Filesize
336KB

Download
memory/4828-1347-0x0000000006E30000-0x0000000006F32000-memory.dmp

Filesize
1.0MB

Download
memory/4828-1353-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-1356-0x000000007503E000-0x000000007503F000-memory.dmp

Filesize
4KB

Download
memory/4828-1355-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-1357-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-1363-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/4828-1361-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download