darkcloud | 5b47ff1c8bb1efc83e426e6c33c217838e822424e0df06564f1ca0670170885c

Analysis

max time kernel
44s
max time network
38s
platform
windows10-2004_x64
resource
win10v2004-20250314-it
resource tags

arch:x64arch:x86image:win10v2004-20250314-itlocale:it-itos:windows10-2004-x64systemwindows
submitted
04/04/2025, 15:20

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General

Target

copy of sanction letter.exe
Size

893KB
MD5

f2cbbaddb0675bd99c305106ae05ca14
SHA1

a416708ffdca33fee302a7ec0503c000801a3bd8
SHA256

5b47ff1c8bb1efc83e426e6c33c217838e822424e0df06564f1ca0670170885c
SHA512

7723894d81284072bd654fae6780dd0db419341c20202952b9e5cf5720a4b5b6e818b2ffff2976baa58ae939eda0612d35409656a8d6dc74cd27fcb7f512bad3
SSDEEP

24576:n4l0MSRqgEauL0L1V2FbhfV2kzTbXlAaJuEl4+vode8:n4l0MSRqgEdLS1UrI4lHJZjgI

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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1452 set thread context of 4808	1452	copy of sanction letter.exe	99

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	copy of sanction letter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1452	copy of sanction letter.exe
1452	copy of sanction letter.exe
1452	copy of sanction letter.exe
1452	copy of sanction letter.exe
1452	copy of sanction letter.exe
1452	copy of sanction letter.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4808	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	copy of sanction letter.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4808	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99
PID 1452 wrote to memory of 4808	1452	copy of sanction letter.exe	99

C:\Users\Admin\AppData\Local\Temp\copy of sanction letter.exe
"C:\Users\Admin\AppData\Local\Temp\copy of sanction letter.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:4808

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/1452-8-0x0000000007B10000-0x0000000007BAC000-memory.dmp

Filesize
624KB

Download
memory/1452-9-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

Filesize
4KB

Download
memory/1452-2-0x0000000005270000-0x0000000005814000-memory.dmp

Filesize
5.6MB

Download
memory/1452-3-0x0000000004D80000-0x0000000004E12000-memory.dmp

Filesize
584KB

Download
memory/1452-4-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/1452-5-0x0000000004F40000-0x0000000004F4A000-memory.dmp

Filesize
40KB

Download
memory/1452-6-0x0000000007880000-0x0000000007A0C000-memory.dmp

Filesize
1.5MB

Download
memory/1452-7-0x0000000006290000-0x00000000062A8000-memory.dmp

Filesize
96KB

Download
memory/1452-1-0x0000000000310000-0x00000000003F6000-memory.dmp

Filesize
920KB

Download
memory/1452-10-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/1452-0-0x0000000074F6E000-0x0000000074F6F000-memory.dmp

Filesize
4KB

Download
memory/1452-11-0x0000000007F10000-0x0000000007FB8000-memory.dmp

Filesize
672KB

Download
memory/1452-12-0x0000000007CC0000-0x0000000007DC2000-memory.dmp

Filesize
1.0MB

Download
memory/1452-19-0x0000000074F60000-0x0000000075710000-memory.dmp

Filesize
7.7MB

Download
memory/4808-15-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4808-13-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download
memory/4808-20-0x0000000000400000-0x000000000045E000-memory.dmp

Filesize
376KB

Download