darkcloud | 8495fddf26cbc9c009f6a93b6a61f5447a8f2d41d574020509c1a72f499140c6

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2025, 07:47

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General

Target

Halkbank Ekstre.pdf.exe
Size

1.3MB
MD5

5e4a8b932d470ecf00cd284e2c5848bd
SHA1

fa0fa4dd24aa8926049ed3d40bf229f3d151bd63
SHA256

8495fddf26cbc9c009f6a93b6a61f5447a8f2d41d574020509c1a72f499140c6
SHA512

29244fd7b26d16cd72fe56e59278272cff61284d3a1b1e0b11dff3bc48d8fd841a7202e691166cfee20f0c7774183de44b77d76bd7b919f557e46d0f3ad00b55
SSDEEP

24576:gu6J33O0c+JY5UZ+XC0kGso6FaVSB6wWDe9xD706TIBOWY:Ku0c++OCvkGs9FaVSBg+xD706TyY

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

Drops startup file 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
5940	orographically.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/1356-6-0x0000000000FA0000-0x00000000013A0000-memory.dmp	autoit_exe
behavioral1/files/0x000a00000001e68e-8.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5940 set thread context of 4600	5940	orographically.exe	92

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4852	5940	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 3 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	Halkbank Ekstre.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	orographically.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5940	orographically.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1356	Halkbank Ekstre.pdf.exe
1356	Halkbank Ekstre.pdf.exe
5940	orographically.exe
5940	orographically.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1356	Halkbank Ekstre.pdf.exe
1356	Halkbank Ekstre.pdf.exe
5940	orographically.exe
5940	orographically.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4600	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1356 wrote to memory of 5940	1356	Halkbank Ekstre.pdf.exe	91
PID 1356 wrote to memory of 5940	1356	Halkbank Ekstre.pdf.exe	91
PID 1356 wrote to memory of 5940	1356	Halkbank Ekstre.pdf.exe	91
PID 5940 wrote to memory of 4600	5940	orographically.exe	92
PID 5940 wrote to memory of 4600	5940	orographically.exe	92
PID 5940 wrote to memory of 4600	5940	orographically.exe	92
PID 5940 wrote to memory of 4600	5940	orographically.exe	92

C:\Users\Admin\AppData\Local\Temp\Halkbank Ekstre.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Halkbank Ekstre.pdf.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1356
- C:\Users\Admin\AppData\Local\Anglophile\orographically.exe
  "C:\Users\Admin\AppData\Local\Temp\Halkbank Ekstre.pdf.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5940
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Halkbank Ekstre.pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:4600
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5940 -s 704
    3⤵
    - Program crash
    PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5940 -ip 5940
1⤵
PID:4744

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

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Downloads

C:\Users\Admin\AppData\Local\Anglophile\orographically.exe

Filesize
1.3MB

MD5
5e4a8b932d470ecf00cd284e2c5848bd

SHA1
fa0fa4dd24aa8926049ed3d40bf229f3d151bd63

SHA256
8495fddf26cbc9c009f6a93b6a61f5447a8f2d41d574020509c1a72f499140c6

SHA512
29244fd7b26d16cd72fe56e59278272cff61284d3a1b1e0b11dff3bc48d8fd841a7202e691166cfee20f0c7774183de44b77d76bd7b919f557e46d0f3ad00b55

Download Submit
memory/1356-6-0x0000000000FA0000-0x00000000013A0000-memory.dmp

Filesize
4.0MB

Download
memory/4600-20-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4600-22-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/4600-35-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/5940-18-0x00000000010D0000-0x00000000014D0000-memory.dmp

Filesize
4.0MB

Download