Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
01-03-2024 05:14
Behavioral task
behavioral1
Sample
1216-1-0x0000000000310000-0x00000000006D4000-memory.exe
Resource
win7-20240221-en
General
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Target
1216-1-0x0000000000310000-0x00000000006D4000-memory.exe
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Size
3.8MB
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MD5
c1a5f8470232b68b09a6fe6691f4565a
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SHA1
ab6acb15a549ed408d8f54fcf904e0422cfe61fb
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SHA256
8f33037c5ba0809a6f752d5b47cbc4be92ed035c72a1f36fabce73b1602ba716
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SHA512
469a2a5b53e1a833fb9fcc8a011859b3ef3594a9d0b1fd4cd9d7ac0b528745305748201fc2df1565ff09ed52ae7b800c76053a52fe029acd402dea40370fc9d0
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SSDEEP
49152:Kk/uWOo//RECDAQsn8BErTPIL5BZm7GtaadCm0tkjFQrjb5caEr:Kkx/5ECDAQlCnIL07ualvtkFQ7iaEr
Malware Config
Extracted
quasar
1.3.0.0
nulled
147.50.240.233:8008
QSR_MUTEX_vjlanSKDAVykDAvDJ6
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encryption_key
d4qN0cIZpTNNR0XsDxxy
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install_name
thick.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
updates
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subdirectory
SubDir
Signatures
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Quasar payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1924-1-0x00000000008F0000-0x0000000000CB4000-memory.dmp family_quasar -
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 16 ip-api.com -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
1216-1-0x0000000000310000-0x00000000006D4000-memory.exedescription pid process Token: SeDebugPrivilege 1924 1216-1-0x0000000000310000-0x00000000006D4000-memory.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
1216-1-0x0000000000310000-0x00000000006D4000-memory.exedescription pid process target process PID 1924 wrote to memory of 1220 1924 1216-1-0x0000000000310000-0x00000000006D4000-memory.exe schtasks.exe PID 1924 wrote to memory of 1220 1924 1216-1-0x0000000000310000-0x00000000006D4000-memory.exe schtasks.exe PID 1924 wrote to memory of 1220 1924 1216-1-0x0000000000310000-0x00000000006D4000-memory.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe"C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "updates" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\1216-1-0x0000000000310000-0x00000000006D4000-memory.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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memory/1924-0-0x00000000749D0000-0x0000000075180000-memory.dmpFilesize
7.7MB
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memory/1924-1-0x00000000008F0000-0x0000000000CB4000-memory.dmpFilesize
3.8MB
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memory/1924-2-0x0000000005A80000-0x0000000006024000-memory.dmpFilesize
5.6MB
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memory/1924-3-0x00000000055E0000-0x0000000005672000-memory.dmpFilesize
584KB
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memory/1924-4-0x00000000055D0000-0x00000000055E0000-memory.dmpFilesize
64KB
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memory/1924-5-0x0000000005680000-0x00000000056E6000-memory.dmpFilesize
408KB
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memory/1924-6-0x0000000006290000-0x00000000062A2000-memory.dmpFilesize
72KB
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memory/1924-7-0x00000000067D0000-0x000000000680C000-memory.dmpFilesize
240KB
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memory/1924-8-0x0000000006990000-0x000000000699A000-memory.dmpFilesize
40KB
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memory/1924-9-0x00000000749D0000-0x0000000075180000-memory.dmpFilesize
7.7MB