darkcloud | 52017a20ef2793e243b84b826c56b75a5c8c35bb2f16e70485510ba5b855dcef

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
12/03/2025, 02:36

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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

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
1872	powershell.exe
3016	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 2264	2364	RFQ.exe	39

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ.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
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2364	RFQ.exe
2364	RFQ.exe
2364	RFQ.exe
2364	RFQ.exe
1872	powershell.exe
3016	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2264	RFQ.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	RFQ.exe
Token: SeDebugPrivilege	1872	powershell.exe
Token: SeDebugPrivilege	3016	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2264	RFQ.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 1872	2364	RFQ.exe	31
PID 2364 wrote to memory of 1872	2364	RFQ.exe	31
PID 2364 wrote to memory of 1872	2364	RFQ.exe	31
PID 2364 wrote to memory of 1872	2364	RFQ.exe	31
PID 2364 wrote to memory of 3016	2364	RFQ.exe	33
PID 2364 wrote to memory of 3016	2364	RFQ.exe	33
PID 2364 wrote to memory of 3016	2364	RFQ.exe	33
PID 2364 wrote to memory of 3016	2364	RFQ.exe	33
PID 2364 wrote to memory of 2888	2364	RFQ.exe	35
PID 2364 wrote to memory of 2888	2364	RFQ.exe	35
PID 2364 wrote to memory of 2888	2364	RFQ.exe	35
PID 2364 wrote to memory of 2888	2364	RFQ.exe	35
PID 2364 wrote to memory of 2856	2364	RFQ.exe	37
PID 2364 wrote to memory of 2856	2364	RFQ.exe	37
PID 2364 wrote to memory of 2856	2364	RFQ.exe	37
PID 2364 wrote to memory of 2856	2364	RFQ.exe	37
PID 2364 wrote to memory of 2824	2364	RFQ.exe	38
PID 2364 wrote to memory of 2824	2364	RFQ.exe	38
PID 2364 wrote to memory of 2824	2364	RFQ.exe	38
PID 2364 wrote to memory of 2824	2364	RFQ.exe	38
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39
PID 2364 wrote to memory of 2264	2364	RFQ.exe	39

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2364
- 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:1872
- 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:3016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOPQRmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE66.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2888
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  PID:2856
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  PID:2824
- 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:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

C:\Users\Admin\AppData\Local\Temp\tmpCE66.tmp

Filesize
1KB

MD5
13e931aa5188fc23a96d511833a7656c

SHA1
84fbdb00c37d3f917a00d60bdcbc6e8ae73f09bc

SHA256
c73cda18ba010a8fdd15aa474df7357da1e090d6a5754395f2c2418758908f71

SHA512
02600d13781800f3ee9a62584e5e3556ae58850171213949360da5d9b4d877e8ed31a90c0ac7a303cf563671f1ca6a15ecb265198bddc3447824536a331d3d6b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
5efb211d2c6750c30d4e015e49cb0e95

SHA1
80b811c5eb17ba342013f094ad58a0ab2e873781

SHA256
3de9f48ebb82e92f6bcdfe468791bda3212b2624ecbe33ab6860e14d1a208b63

SHA512
da9d17f14c0394cf4395044c3d7d836e2e8ca24898410fb054362798317739ee4e77968d7e26609a3b1be447dbdddd178a64c47585acbda72b835b001a99e76f

Download Submit
memory/2264-23-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2264-19-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2264-29-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2264-21-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2264-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2264-28-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2364-6-0x0000000007DD0000-0x0000000007E8C000-memory.dmp

Filesize
752KB

Download
memory/2364-1-0x0000000000080000-0x0000000000162000-memory.dmp

Filesize
904KB

Download
memory/2364-2-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2364-3-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/2364-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2364-5-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2364-4-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2364-30-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download