Analysis
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max time kernel
3s -
max time network
68s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09-04-2024 19:27
Behavioral task
behavioral1
Sample
41afb7fac25799cd1a27e5d5020e45d4.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
41afb7fac25799cd1a27e5d5020e45d4.exe
Resource
win10v2004-20240226-en
General
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Target
41afb7fac25799cd1a27e5d5020e45d4.exe
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Size
2.0MB
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MD5
41afb7fac25799cd1a27e5d5020e45d4
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SHA1
1efd3c28475c9fecdab4329dc738b4c85e8ff694
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SHA256
9a745985851e320444d5f5535eb6bb65ca3f66401f4e6d8870951588bff95ba5
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SHA512
2079ff3fdb3f6812e724db8f4e8a451b3a0a0be8f007b2e7500e0967110d59939d2d90ed80d53e39ae7170e15beffd02f4cd692872f3d8ea76e595f712e678b9
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYB:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yv
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/2560-55-0x0000000000BA0000-0x0000000000BFE000-memory.dmp family_quasar behavioral1/memory/2636-65-0x00000000003C0000-0x000000000041E000-memory.dmp family_quasar -
Executes dropped EXE 2 IoCs
Processes:
vnc.exewindef.exepid process 2956 vnc.exe 2560 windef.exe -
Loads dropped DLL 8 IoCs
Processes:
41afb7fac25799cd1a27e5d5020e45d4.exepid process 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
41afb7fac25799cd1a27e5d5020e45d4.exedescription ioc process File opened (read-only) \??\h: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\q: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\r: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\u: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\v: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\a: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\j: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\k: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\o: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\s: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\w: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\y: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\b: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\g: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\i: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\l: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\n: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\e: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\p: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\t: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\x: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\z: 41afb7fac25799cd1a27e5d5020e45d4.exe File opened (read-only) \??\m: 41afb7fac25799cd1a27e5d5020e45d4.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 7 ip-api.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
svchost.exedescription 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
Processes:
vnc.exe41afb7fac25799cd1a27e5d5020e45d4.exedescription pid process target process PID 2956 set thread context of 2656 2956 vnc.exe svchost.exe PID 2208 set thread context of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2416 schtasks.exe 2624 schtasks.exe 1708 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
41afb7fac25799cd1a27e5d5020e45d4.exepid process 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 2208 41afb7fac25799cd1a27e5d5020e45d4.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
vnc.exepid process 2956 vnc.exe -
Suspicious use of WriteProcessMemory 25 IoCs
Processes:
41afb7fac25799cd1a27e5d5020e45d4.exevnc.exedescription pid process target process PID 2208 wrote to memory of 2956 2208 41afb7fac25799cd1a27e5d5020e45d4.exe vnc.exe PID 2208 wrote to memory of 2956 2208 41afb7fac25799cd1a27e5d5020e45d4.exe vnc.exe PID 2208 wrote to memory of 2956 2208 41afb7fac25799cd1a27e5d5020e45d4.exe vnc.exe PID 2208 wrote to memory of 2956 2208 41afb7fac25799cd1a27e5d5020e45d4.exe vnc.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2208 wrote to memory of 2560 2208 41afb7fac25799cd1a27e5d5020e45d4.exe windef.exe PID 2208 wrote to memory of 2560 2208 41afb7fac25799cd1a27e5d5020e45d4.exe windef.exe PID 2208 wrote to memory of 2560 2208 41afb7fac25799cd1a27e5d5020e45d4.exe windef.exe PID 2208 wrote to memory of 2560 2208 41afb7fac25799cd1a27e5d5020e45d4.exe windef.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2208 wrote to memory of 2520 2208 41afb7fac25799cd1a27e5d5020e45d4.exe 41afb7fac25799cd1a27e5d5020e45d4.exe PID 2956 wrote to memory of 2656 2956 vnc.exe svchost.exe PID 2208 wrote to memory of 2416 2208 41afb7fac25799cd1a27e5d5020e45d4.exe schtasks.exe PID 2208 wrote to memory of 2416 2208 41afb7fac25799cd1a27e5d5020e45d4.exe schtasks.exe PID 2208 wrote to memory of 2416 2208 41afb7fac25799cd1a27e5d5020e45d4.exe schtasks.exe PID 2208 wrote to memory of 2416 2208 41afb7fac25799cd1a27e5d5020e45d4.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\41afb7fac25799cd1a27e5d5020e45d4.exe"C:\Users\Admin\AppData\Local\Temp\41afb7fac25799cd1a27e5d5020e45d4.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵
- Maps connected drives based on registry
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C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
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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⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
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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⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\41afb7fac25799cd1a27e5d5020e45d4.exe"C:\Users\Admin\AppData\Local\Temp\41afb7fac25799cd1a27e5d5020e45d4.exe"2⤵
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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⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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\Users\Admin\AppData\Local\Temp\vnc.exeFilesize
405KB
MD5b8ba87ee4c3fc085a2fed0d839aadce1
SHA1b3a2e3256406330e8b1779199bb2b9865122d766
SHA2564e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
SHA5127a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2
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\Users\Admin\AppData\Local\Temp\windef.exeFilesize
349KB
MD5b4a202e03d4135484d0e730173abcc72
SHA101b30014545ea526c15a60931d676f9392ea0c70
SHA2567050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
SHA512632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb
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memory/2208-31-0x0000000000CE0000-0x0000000000CE1000-memory.dmpFilesize
4KB
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memory/2520-52-0x0000000000080000-0x00000000000A0000-memory.dmpFilesize
128KB
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memory/2520-30-0x0000000000080000-0x00000000000A0000-memory.dmpFilesize
128KB
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memory/2520-33-0x0000000000080000-0x00000000000A0000-memory.dmpFilesize
128KB
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memory/2520-47-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmpFilesize
4KB
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memory/2560-67-0x0000000074750000-0x0000000074E3E000-memory.dmpFilesize
6.9MB
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memory/2560-57-0x0000000000920000-0x0000000000960000-memory.dmpFilesize
256KB
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memory/2560-56-0x0000000074750000-0x0000000074E3E000-memory.dmpFilesize
6.9MB
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memory/2560-55-0x0000000000BA0000-0x0000000000BFE000-memory.dmpFilesize
376KB
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memory/2636-66-0x0000000074750000-0x0000000074E3E000-memory.dmpFilesize
6.9MB
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memory/2636-65-0x00000000003C0000-0x000000000041E000-memory.dmpFilesize
376KB
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memory/2636-70-0x0000000074750000-0x0000000074E3E000-memory.dmpFilesize
6.9MB
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memory/2656-51-0x00000000004A0000-0x000000000053C000-memory.dmpFilesize
624KB
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memory/2656-41-0x0000000000020000-0x0000000000021000-memory.dmpFilesize
4KB
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memory/2656-40-0x00000000004A0000-0x000000000053C000-memory.dmpFilesize
624KB
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memory/2656-38-0x000007FFFFFD7000-0x000007FFFFFD8000-memory.dmpFilesize
4KB
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memory/2656-34-0x0000000000020000-0x0000000000021000-memory.dmpFilesize
4KB
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memory/2656-69-0x00000000004A0000-0x000000000053C000-memory.dmpFilesize
624KB