Analysis
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max time kernel
3s -
max time network
97s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
14-09-2024 20:13
Behavioral task
behavioral1
Sample
b4c9d317ae919f607b76c58bf2198180N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b4c9d317ae919f607b76c58bf2198180N.exe
Resource
win10v2004-20240802-en
General
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Target
b4c9d317ae919f607b76c58bf2198180N.exe
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Size
2.0MB
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MD5
b4c9d317ae919f607b76c58bf2198180
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SHA1
05a1ea58385035598e78d51d2943c2d30239a3fb
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SHA256
4f11284336c65064a76c810d1a8e21fae07a5e785a99a8c3b7f8fdc2a1309ed5
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SHA512
d422feb4af476b3eb084d8d8af6e7924d580994a01a86757fc077d81a037f0fdefa556f3ad9bbc4defdb3ff3b499eb031b7a1b834bdbe7e115a936f0e0cb8685
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYV:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Y7
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
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\windef.exe family_quasar behavioral1/memory/2700-31-0x0000000000230000-0x000000000028E000-memory.dmp family_quasar behavioral1/memory/1436-59-0x0000000000E50000-0x0000000000EAE000-memory.dmp family_quasar -
Executes dropped EXE 2 IoCs
Processes:
vnc.exewindef.exepid process 2752 vnc.exe 2700 windef.exe -
Loads dropped DLL 12 IoCs
Processes:
b4c9d317ae919f607b76c58bf2198180N.exeWerFault.exepid process 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe 1804 WerFault.exe 1804 WerFault.exe 1804 WerFault.exe 1804 WerFault.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
b4c9d317ae919f607b76c58bf2198180N.exedescription ioc process File opened (read-only) \??\v: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\z: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\a: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\e: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\g: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\m: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\r: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\i: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\s: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\x: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\y: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\w: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\h: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\k: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\n: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\t: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\u: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\q: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\b: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\j: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\l: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\o: b4c9d317ae919f607b76c58bf2198180N.exe File opened (read-only) \??\p: b4c9d317ae919f607b76c58bf2198180N.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.
Processes:
flow ioc 5 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b4c9d317ae919f607b76c58bf2198180N.exedescription pid process target process PID 2180 set thread context of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1804 2752 WerFault.exe vnc.exe -
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.
Processes:
b4c9d317ae919f607b76c58bf2198180N.exevnc.exewindef.exeb4c9d317ae919f607b76c58bf2198180N.exeschtasks.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4c9d317ae919f607b76c58bf2198180N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vnc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4c9d317ae919f607b76c58bf2198180N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 1044 schtasks.exe 2160 schtasks.exe 3048 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
b4c9d317ae919f607b76c58bf2198180N.exepid process 2180 b4c9d317ae919f607b76c58bf2198180N.exe 2180 b4c9d317ae919f607b76c58bf2198180N.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
windef.exedescription pid process Token: SeDebugPrivilege 2700 windef.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
b4c9d317ae919f607b76c58bf2198180N.exevnc.exedescription pid process target process PID 2180 wrote to memory of 2752 2180 b4c9d317ae919f607b76c58bf2198180N.exe vnc.exe PID 2180 wrote to memory of 2752 2180 b4c9d317ae919f607b76c58bf2198180N.exe vnc.exe PID 2180 wrote to memory of 2752 2180 b4c9d317ae919f607b76c58bf2198180N.exe vnc.exe PID 2180 wrote to memory of 2752 2180 b4c9d317ae919f607b76c58bf2198180N.exe vnc.exe PID 2752 wrote to memory of 2844 2752 vnc.exe svchost.exe PID 2752 wrote to memory of 2844 2752 vnc.exe svchost.exe PID 2752 wrote to memory of 2844 2752 vnc.exe svchost.exe PID 2752 wrote to memory of 2844 2752 vnc.exe svchost.exe PID 2180 wrote to memory of 2700 2180 b4c9d317ae919f607b76c58bf2198180N.exe windef.exe PID 2180 wrote to memory of 2700 2180 b4c9d317ae919f607b76c58bf2198180N.exe windef.exe PID 2180 wrote to memory of 2700 2180 b4c9d317ae919f607b76c58bf2198180N.exe windef.exe PID 2180 wrote to memory of 2700 2180 b4c9d317ae919f607b76c58bf2198180N.exe windef.exe PID 2752 wrote to memory of 2844 2752 vnc.exe svchost.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2180 wrote to memory of 2596 2180 b4c9d317ae919f607b76c58bf2198180N.exe b4c9d317ae919f607b76c58bf2198180N.exe PID 2752 wrote to memory of 1804 2752 vnc.exe WerFault.exe PID 2752 wrote to memory of 1804 2752 vnc.exe WerFault.exe PID 2752 wrote to memory of 1804 2752 vnc.exe WerFault.exe PID 2752 wrote to memory of 1804 2752 vnc.exe WerFault.exe PID 2180 wrote to memory of 1044 2180 b4c9d317ae919f607b76c58bf2198180N.exe schtasks.exe PID 2180 wrote to memory of 1044 2180 b4c9d317ae919f607b76c58bf2198180N.exe schtasks.exe PID 2180 wrote to memory of 1044 2180 b4c9d317ae919f607b76c58bf2198180N.exe schtasks.exe PID 2180 wrote to memory of 1044 2180 b4c9d317ae919f607b76c58bf2198180N.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b4c9d317ae919f607b76c58bf2198180N.exe"C:\Users\Admin\AppData\Local\Temp\b4c9d317ae919f607b76c58bf2198180N.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:2180 -
C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2752 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵PID:2844
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 1603⤵
- Loads dropped DLL
- Program crash
PID:1804 -
C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2700 -
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⤵
- Scheduled Task/Job: Scheduled Task
PID:2160 -
C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵PID:1436
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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:3048 -
C:\Users\Admin\AppData\Local\Temp\b4c9d317ae919f607b76c58bf2198180N.exe"C:\Users\Admin\AppData\Local\Temp\b4c9d317ae919f607b76c58bf2198180N.exe"2⤵
- System Location Discovery: System Language Discovery
PID:2596 -
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:1044
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