darkcloud | 8fd1721bc7942d44dc04eb074ed472ba574b5f24ec8b462c4f651ee8e0cbf5a2

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2025, 09:50

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General

Target
INV0987678900KL.exe
Size 1.0MB
Sample250128-ltxepsvmfy
SHA256 8fd1721bc7942d44dc04eb074ed472ba574b5f24ec8b462c4f651ee8e0cbf5a2
MD5 ed02d772472a20b4608b6eaad30bf955
SHA1 9e66d30a7a2d64384348220d0a47673900a2bed1
SHA512 438dd9591a4724dc133924d214a715d41d0958b0f582c662b7c1e8ab19b62694b92fb6f653e28bf15fc62809ca8701c0e027cb10e8a4268d63b77334e277565b
SSDEEP 24576:uRmJkcoQricOIQxiZY1iaC4PKT2PGnO/OHDT4p:7JZoQrbTFZY1iaC4yTUaOeDT4p
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcloud discovery stealer

Malware Config

Extracted

Family

darkcloud

https://api.telegram.org/bot7664186157:AAHBDRAKxcixTkc-YXHNylLjI0ZkZfIUxE8/sendMessage?chat_id=6443825857

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\murkest.vbs	murkest.exe

Executes dropped EXE 1 IoCs

pid	Process
1828	murkest.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0007000000023ccd-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1828 set thread context of 3108	1828	murkest.exe	83

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 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	INV0987678900KL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	murkest.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1828	murkest.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
5024	INV0987678900KL.exe
5024	INV0987678900KL.exe
1828	murkest.exe
1828	murkest.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
5024	INV0987678900KL.exe
5024	INV0987678900KL.exe
1828	murkest.exe
1828	murkest.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3108	svchost.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 1828	5024	INV0987678900KL.exe	82
PID 5024 wrote to memory of 1828	5024	INV0987678900KL.exe	82
PID 5024 wrote to memory of 1828	5024	INV0987678900KL.exe	82
PID 1828 wrote to memory of 3108	1828	murkest.exe	83
PID 1828 wrote to memory of 3108	1828	murkest.exe	83
PID 1828 wrote to memory of 3108	1828	murkest.exe	83
PID 1828 wrote to memory of 3108	1828	murkest.exe	83

C:\Users\Admin\AppData\Local\Temp\INV0987678900KL.exe
"C:\Users\Admin\AppData\Local\Temp\INV0987678900KL.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Users\Admin\AppData\Local\jailkeeper\murkest.exe
  "C:\Users\Admin\AppData\Local\Temp\INV0987678900KL.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:1828
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\INV0987678900KL.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:3108

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

saccule

Path C:\Users\Admin\AppData\Local\Temp\saccule
Size 380KB
SHA256 8fc837cbaf8bfe46c5c3452e827efe28e8ead9e9276836afeea0fa74d4367c7a
MD5 daf5ce6c845e0b5f98ca1f7b922b8617
SHA1 24a3c139c05bd2f4e28bd420785695f15ab3d005
SHA512 2af61c82dd76911ecf02c2b4508bec8b74dc92749f857884b463f044ecc83d2bcc45b0f3f4295e3e3cc848633855e88551fdcfadc414bda2517eb0ef8202a93f
SSDEEP 6144:avnpyvy3yn6e1DTufPRYezt34atvmFEVGfsAJSpfGQaJUORakTeRVMo50Wz96TpR:a/UvOyn6MmPrt3FQE00AJS4QaJNRakSC
MD5 SHA1 SHA512 SSDEEP

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murkest.exe

Path C:\Users\Admin\AppData\Local\jailkeeper\murkest.exe
Size 1.0MB
SHA256 8fd1721bc7942d44dc04eb074ed472ba574b5f24ec8b462c4f651ee8e0cbf5a2
MD5 ed02d772472a20b4608b6eaad30bf955
SHA1 9e66d30a7a2d64384348220d0a47673900a2bed1
SHA512 438dd9591a4724dc133924d214a715d41d0958b0f582c662b7c1e8ab19b62694b92fb6f653e28bf15fc62809ca8701c0e027cb10e8a4268d63b77334e277565b
SSDEEP 24576:uRmJkcoQricOIQxiZY1iaC4PKT2PGnO/OHDT4p:7JZoQrbTFZY1iaC4yTUaOeDT4p
MD5 SHA1 SHA512 SSDEEP

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memory/1828-18-0x0000000003CC0000-0x0000000003EC0000-memory.dmp

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memory/3108-20-0x0000000000400000-0x000000000045F000-memory.dmp

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memory/3108-22-0x0000000000400000-0x000000000045F000-memory.dmp

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memory/3108-25-0x0000000000400000-0x000000000045F000-memory.dmp

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memory/5024-6-0x0000000003340000-0x0000000003440000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads