Analysis
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max time kernel
141s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
28-06-2024 18:55
Behavioral task
behavioral1
Sample
Loader.exe
Resource
win7-20240221-en
General
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Target
Loader.exe
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Size
409KB
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MD5
808d880b4fc7f865fb607337690b5575
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SHA1
7782ec3da7a6f8ed196d4431c59d50690580ac39
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SHA256
90a58064c6df293fc564fa5b616c737f6fd31f6288433da2030ec56d6dc46962
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SHA512
7a7ee833835d9469a1a5b48a5cbf9c902f362d82ad37b2ba99944e692b4322c140d770dc7be30f8ace7b84d6508e4d2e5f2007294ca3c07094bbfca8120ec6a8
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SSDEEP
12288:KpsD64e1Muxkk3abqow6dL+32oJN/nSjCt1hw:OsG4kMUQU6E3NN/nk
Malware Config
Extracted
quasar
3.1.5
SeroXen
feel-barcelona.gl.at.ply.gg:47655
$Sxr-GV6wZsGZZMeZ3qfenc
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encryption_key
OyypB9RDbCUrmPK8uTim
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Defender Anti-Malware Disable Startup
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subdirectory
SubDir
Signatures
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Quasar payload 1 IoCs
Processes:
resource yara_rule behavioral1/memory/1888-1-0x0000000001310000-0x000000000137C000-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 2 ip-api.com -
Scheduled Task/Job: Scheduled Task 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:
Loader.exedescription pid process Token: SeDebugPrivilege 1888 Loader.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Loader.exepid process 1888 Loader.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
Loader.exedescription pid process target process PID 1888 wrote to memory of 2272 1888 Loader.exe schtasks.exe PID 1888 wrote to memory of 2272 1888 Loader.exe schtasks.exe PID 1888 wrote to memory of 2272 1888 Loader.exe schtasks.exe PID 1888 wrote to memory of 2272 1888 Loader.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Loader.exe"C:\Users\Admin\AppData\Local\Temp\Loader.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Windows Defender Anti-Malware Disable Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Loader.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:2272