darkcloud | 52017a20ef2793e243b84b826c56b75a5c8c35bb2f16e70485510ba5b855dcef

General

Target

RFQ.exe
Size

881KB
MD5

768bed9843a8a7c96699b27fc40b8819
SHA1

4ae495c3540252bef39276bf6e9fc84435f7b7bb
SHA256

aa653ad0d107b2d7ab98d4ede0eef147b73fbd7eb2f522f0bf608f833daebe34
SHA512

e23d433ac20532c512d2f2db1badbf4a2e43d2c28ff73553e2de79d82a012dbe1afe81d59bc830f4606ff3b54b08cbbcbd2b6448cdb12a3246ffb4607ac93539
SSDEEP

12288:TfNeE6xIVKGJA1R1MbXgf+GH4oGSlhA8b06JJe4Ii3QOeGiTJyxwC1ht2ddT+:wE6xcA1LMbDqXm8b0iJ7r6cxvE

Score

10^/10

darkcloud discovery execution stealer

Malware Config

Extracted

Family

darkcloud

C2

https://api.telegram.org/bot7725030292:AAFHYtQUWDdOhIko2DIqyexjh4XvUaOA1Fs/sendMessage?chat_id=6732456666

Signatures

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1932	powershell.exe
2832	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2360 set thread context of 2780	2360	RFQ.exe	37

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 5 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	RFQ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2884	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1932	powershell.exe
2832	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2780	RFQ.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1932	powershell.exe
Token: SeDebugPrivilege	2832	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2780	RFQ.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1932	2360	RFQ.exe	31
PID 2360 wrote to memory of 1932	2360	RFQ.exe	31
PID 2360 wrote to memory of 1932	2360	RFQ.exe	31
PID 2360 wrote to memory of 1932	2360	RFQ.exe	31
PID 2360 wrote to memory of 2832	2360	RFQ.exe	33
PID 2360 wrote to memory of 2832	2360	RFQ.exe	33
PID 2360 wrote to memory of 2832	2360	RFQ.exe	33
PID 2360 wrote to memory of 2832	2360	RFQ.exe	33
PID 2360 wrote to memory of 2884	2360	RFQ.exe	34
PID 2360 wrote to memory of 2884	2360	RFQ.exe	34
PID 2360 wrote to memory of 2884	2360	RFQ.exe	34
PID 2360 wrote to memory of 2884	2360	RFQ.exe	34
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37
PID 2360 wrote to memory of 2780	2360	RFQ.exe	37

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wOPQRmK.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2832
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOPQRmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD6A0.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2884
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD6A0.tmp

Filesize
1KB

MD5
a09b98921a81e84e67b3596c9b1f1e87

SHA1
86b20b73a2591b2103dbb3b0c3b7187e099febfe

SHA256
9918531e1ff588ed49440b6629c03cacc70192eb9c37985dd23d9691655edead

SHA512
4d1b5a6116079722db78ef8a9678badac59c8c1179e4fc34c51bd4b73026e01867e89f00852dff151c93cc097171382d107db9b252a51be8421f4ffe7a499aaf

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\BZE3SI60ICBVIDKG6403.temp

Filesize
7KB

MD5
c33f68c304c84e43390d6b3776847f2b

SHA1
305c9ec6c7f97d421bc8bc65f3ad2d5afec60f79

SHA256
ac38ea1689e7641f8d322bf762248241e1a4ab24a1d9eac58cecdb7107563d16

SHA512
a6152a041b98a71d3e0283193847df273e40921fbf369fd533caea837564220ab41b295c497355a9fdc1d9bd5d9ebc074007782d1a593fa59d2ab25409422a13

Download Submit
memory/2360-4-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2360-32-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/2360-5-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-6-0x0000000005020000-0x00000000050DC000-memory.dmp

Filesize
752KB

Download
memory/2360-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2360-1-0x0000000000810000-0x00000000008F2000-memory.dmp

Filesize
904KB

Download
memory/2360-3-0x0000000000630000-0x0000000000640000-memory.dmp

Filesize
64KB

Download
memory/2780-29-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2780-28-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2780-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2780-23-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2780-21-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2780-19-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads