Analysis
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max time kernel
3s -
max time network
114s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-09-2024 16:38
Behavioral task
behavioral1
Sample
VirTool.Win32.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
VirTool.Win32.exe
Resource
win10v2004-20240802-en
General
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Target
VirTool.Win32.exe
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Size
2.0MB
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MD5
5dc8fe29de8c20caf7ae7839457995c0
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SHA1
6188c316ed433f9a25355ae45c51785674fea88d
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SHA256
7242d2bb9780514602cf3e3c65cd506bebe640024684fb3748513a7da594fb7f
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SHA512
dda63ec149b706da504a0ede1e5fd41605f294e26062a40ba44c22b5743c1c8969753ff047deb399e7e319bafb50b3177cf9c0e62f5b7259d7fddc15710bf70f
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYo:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9YC
Malware Config
Extracted
quasar
1.3.0.0
EbayProfiles
5.8.88.191:443
sockartek.icu:443
QSR_MUTEX_0kBRNrRz5TDLEQouI0
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encryption_key
MWhG6wsClMX8aJM2CVXT
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install_name
winsock.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
win defender run
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subdirectory
SubDir
Extracted
azorult
http://0x21.in:8000/_az/
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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Quasar payload 3 IoCs
resource yara_rule behavioral1/files/0x0008000000016652-17.dat family_quasar behavioral1/memory/2368-46-0x00000000008E0000-0x000000000093E000-memory.dmp family_quasar behavioral1/memory/2296-62-0x0000000000AB0000-0x0000000000B0E000-memory.dmp family_quasar -
Executes dropped EXE 3 IoCs
pid Process 3056 vnc.exe 2368 windef.exe 2296 winsock.exe -
Loads dropped DLL 9 IoCs
pid Process 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe 2368 windef.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\g: VirTool.Win32.exe File opened (read-only) \??\l: VirTool.Win32.exe File opened (read-only) \??\y: VirTool.Win32.exe File opened (read-only) \??\a: VirTool.Win32.exe File opened (read-only) \??\e: VirTool.Win32.exe File opened (read-only) \??\h: VirTool.Win32.exe File opened (read-only) \??\n: VirTool.Win32.exe File opened (read-only) \??\s: VirTool.Win32.exe File opened (read-only) \??\u: VirTool.Win32.exe File opened (read-only) \??\v: VirTool.Win32.exe File opened (read-only) \??\b: VirTool.Win32.exe File opened (read-only) \??\m: VirTool.Win32.exe File opened (read-only) \??\p: VirTool.Win32.exe File opened (read-only) \??\r: VirTool.Win32.exe File opened (read-only) \??\t: VirTool.Win32.exe File opened (read-only) \??\k: VirTool.Win32.exe File opened (read-only) \??\j: VirTool.Win32.exe File opened (read-only) \??\o: VirTool.Win32.exe File opened (read-only) \??\q: VirTool.Win32.exe File opened (read-only) \??\w: VirTool.Win32.exe File opened (read-only) \??\x: VirTool.Win32.exe File opened (read-only) \??\z: VirTool.Win32.exe File opened (read-only) \??\i: VirTool.Win32.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 ip-api.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum svchost.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 svchost.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2304 set thread context of 484 2304 VirTool.Win32.exe 33 PID 3056 set thread context of 2464 3056 vnc.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VirTool.Win32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winsock.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VirTool.Win32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vnc.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2668 schtasks.exe 2648 schtasks.exe 840 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2304 VirTool.Win32.exe 2304 VirTool.Win32.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3056 vnc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2368 windef.exe Token: SeDebugPrivilege 2296 winsock.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 2304 wrote to memory of 3056 2304 VirTool.Win32.exe 30 PID 2304 wrote to memory of 3056 2304 VirTool.Win32.exe 30 PID 2304 wrote to memory of 3056 2304 VirTool.Win32.exe 30 PID 2304 wrote to memory of 3056 2304 VirTool.Win32.exe 30 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 2304 wrote to memory of 2368 2304 VirTool.Win32.exe 32 PID 2304 wrote to memory of 2368 2304 VirTool.Win32.exe 32 PID 2304 wrote to memory of 2368 2304 VirTool.Win32.exe 32 PID 2304 wrote to memory of 2368 2304 VirTool.Win32.exe 32 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 484 2304 VirTool.Win32.exe 33 PID 2304 wrote to memory of 2668 2304 VirTool.Win32.exe 34 PID 2304 wrote to memory of 2668 2304 VirTool.Win32.exe 34 PID 2304 wrote to memory of 2668 2304 VirTool.Win32.exe 34 PID 2304 wrote to memory of 2668 2304 VirTool.Win32.exe 34 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 3056 wrote to memory of 2464 3056 vnc.exe 31 PID 2368 wrote to memory of 2648 2368 windef.exe 38 PID 2368 wrote to memory of 2648 2368 windef.exe 38 PID 2368 wrote to memory of 2648 2368 windef.exe 38 PID 2368 wrote to memory of 2648 2368 windef.exe 38 PID 2368 wrote to memory of 2296 2368 windef.exe 40 PID 2368 wrote to memory of 2296 2368 windef.exe 40 PID 2368 wrote to memory of 2296 2368 windef.exe 40 PID 2368 wrote to memory of 2296 2368 windef.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\VirTool.Win32.exe"C:\Users\Admin\AppData\Local\Temp\VirTool.Win32.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵
- Maps connected drives based on registry
PID:2464
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C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2648
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C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2296 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f4⤵
- Scheduled Task/Job: Scheduled Task
PID:840
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C:\Users\Admin\AppData\Local\Temp\VirTool.Win32.exe"C:\Users\Admin\AppData\Local\Temp\VirTool.Win32.exe"2⤵
- System Location Discovery: System Language Discovery
PID:484
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2668
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
405KB
MD5b8ba87ee4c3fc085a2fed0d839aadce1
SHA1b3a2e3256406330e8b1779199bb2b9865122d766
SHA2564e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
SHA5127a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2
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Filesize
349KB
MD5b4a202e03d4135484d0e730173abcc72
SHA101b30014545ea526c15a60931d676f9392ea0c70
SHA2567050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
SHA512632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb