darkcloud | d85e1962a3edc01edd207bc3c07905df72bc96ef3f8479762ccb24d871493a80

Resubmissions

27/02/2025, 06:35

250227-hcvb8szmz6 10

26/02/2025, 15:52

250226-ta57havse1 3

Analysis

max time kernel
125s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2025, 06:35

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General

Target

Comprobante de transferencia -00010013947094681603.pdf.exe
Size

30KB
MD5

834fc45ffb8f5e8bbb310a37fb49f62f
SHA1

d0cdfd9d917ccd6a95b1e8d2c356684c252d9d0d
SHA256

fa608155a455d94284e67191999e15da2794f2d8dd756cc81da3c7dcdf39726c
SHA512

3ffb04197c8ecd471e0e98a0f00e930bd226127abafe27e2f2dddbb5e8674c44e0d06957defe3f268f1c4c53817d5c715d00bd7fb3526169d66d6f8c9bf0713d
SSDEEP

768:rAP7AFOKX1UYhhIt1JQgG9MPzQgGlNEu//mbQ05XzA:kqXdvKzQZlWBU

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 1244 created 3364	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	55

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Current.vbs	Comprobante de transferencia -00010013947094681603.pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1244 set thread context of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.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	Comprobante de transferencia -00010013947094681603.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1244	Comprobante de transferencia -00010013947094681603.pdf.exe
1244	Comprobante de transferencia -00010013947094681603.pdf.exe
1244	Comprobante de transferencia -00010013947094681603.pdf.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1244	Comprobante de transferencia -00010013947094681603.pdf.exe
Token: SeDebugPrivilege	1244	Comprobante de transferencia -00010013947094681603.pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3900	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96
PID 1244 wrote to memory of 3900	1244	Comprobante de transferencia -00010013947094681603.pdf.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3364
- C:\Users\Admin\AppData\Local\Temp\Comprobante de transferencia -00010013947094681603.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Comprobante de transferencia -00010013947094681603.pdf.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:1244
- 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:3900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1244-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/1244-1-0x0000000000170000-0x000000000017E000-memory.dmp

Filesize
56KB

Download
memory/1244-2-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-3-0x0000000005DE0000-0x0000000005F14000-memory.dmp

Filesize
1.2MB

Download
memory/1244-19-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-21-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-61-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-67-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-65-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-63-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-59-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-57-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-55-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-54-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-51-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-49-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-47-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-43-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-39-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-37-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-35-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-33-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-31-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-29-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-27-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-25-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-23-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-17-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-15-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-13-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-11-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-9-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-45-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-41-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-5-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-7-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-4-0x0000000005DE0000-0x0000000005F0D000-memory.dmp

Filesize
1.2MB

Download
memory/1244-1326-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1327-0x0000000005F20000-0x0000000005FAE000-memory.dmp

Filesize
568KB

Download
memory/1244-1328-0x0000000006040000-0x00000000060CA000-memory.dmp

Filesize
552KB

Download
memory/1244-1329-0x0000000006100000-0x000000000614C000-memory.dmp

Filesize
304KB

Download
memory/1244-1330-0x0000000006AB0000-0x0000000007054000-memory.dmp

Filesize
5.6MB

Download
memory/1244-1331-0x0000000006220000-0x0000000006274000-memory.dmp

Filesize
336KB

Download
memory/1244-1336-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1339-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1341-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1344-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1342-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/1244-1337-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/1244-1347-0x0000000074470000-0x0000000074C20000-memory.dmp

Filesize
7.7MB

Download
memory/3900-1348-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/3900-1359-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download