Analysis
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max time kernel
235s -
max time network
289s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
01-06-2024 07:34
Behavioral task
behavioral1
Sample
loadervmp.exe
Resource
win7-20231129-en
General
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Target
loadervmp.exe
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Size
409KB
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MD5
14f056491baaed04872533c2d9648d46
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SHA1
c48b08d0e9064f2d060f19474bb54cf3c5a25586
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SHA256
018f75f18b882044109f250f19da654c0b3bd90430b318fcb03348908a189aae
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SHA512
c109b1a9cf40049f8958beab9cff112cb326dd719c56f6dedafda4cf3a64d3faae3912f34cbcc1ee203a0316e40b8f7016624f05a1ad6c93bbaa0bdc9dc79b08
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SSDEEP
6144:rMvlpdRJjGq/ldSTTIgiGwo9W0MFMJyb7+Ye0SmxalGcqwL6Ir4H9VI:EpbJjGu/STTIwJWIJgG0jFCRsH9VI
Malware Config
Extracted
quasar
3.1.5
SeroXen
panel-slave.gl.at.ply.gg:57059
panel-slave.gl.at.ply.gg:27892
$Sxr-rpL8EItHN3pqIQQVy2
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encryption_key
ZJpQQkxTrak9Zs9tUOQW
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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
SeroXen
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subdirectory
SubDir
Signatures
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Quasar payload 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2784-1-0x0000000001120000-0x000000000118C000-memory.dmp family_quasar \Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar behavioral1/memory/2568-10-0x0000000001110000-0x000000000117C000-memory.dmp family_quasar -
Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 2568 Client.exe -
Loads dropped DLL 1 IoCs
Processes:
loadervmp.exepid process 2784 loadervmp.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 2 ip-api.com -
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 2856 schtasks.exe 3036 schtasks.exe 2452 SCHTASKS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
loadervmp.exeClient.exedescription pid process Token: SeDebugPrivilege 2784 loadervmp.exe Token: SeDebugPrivilege 2568 Client.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Client.exepid process 2568 Client.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
loadervmp.exeClient.exedescription pid process target process PID 2784 wrote to memory of 2856 2784 loadervmp.exe schtasks.exe PID 2784 wrote to memory of 2856 2784 loadervmp.exe schtasks.exe PID 2784 wrote to memory of 2856 2784 loadervmp.exe schtasks.exe PID 2784 wrote to memory of 2856 2784 loadervmp.exe schtasks.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2784 wrote to memory of 2568 2784 loadervmp.exe Client.exe PID 2568 wrote to memory of 3036 2568 Client.exe schtasks.exe PID 2568 wrote to memory of 3036 2568 Client.exe schtasks.exe PID 2568 wrote to memory of 3036 2568 Client.exe schtasks.exe PID 2568 wrote to memory of 3036 2568 Client.exe schtasks.exe PID 2784 wrote to memory of 2452 2784 loadervmp.exe SCHTASKS.exe PID 2784 wrote to memory of 2452 2784 loadervmp.exe SCHTASKS.exe PID 2784 wrote to memory of 2452 2784 loadervmp.exe SCHTASKS.exe PID 2784 wrote to memory of 2452 2784 loadervmp.exe SCHTASKS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\loadervmp.exe"C:\Users\Admin\AppData\Local\Temp\loadervmp.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\loadervmp.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "SeroXen" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77loadervmp.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\loadervmp.exe'" /sc onlogon /rl HIGHEST2⤵
- 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\Roaming\SubDir\Client.exeFilesize
409KB
MD514f056491baaed04872533c2d9648d46
SHA1c48b08d0e9064f2d060f19474bb54cf3c5a25586
SHA256018f75f18b882044109f250f19da654c0b3bd90430b318fcb03348908a189aae
SHA512c109b1a9cf40049f8958beab9cff112cb326dd719c56f6dedafda4cf3a64d3faae3912f34cbcc1ee203a0316e40b8f7016624f05a1ad6c93bbaa0bdc9dc79b08
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memory/2568-10-0x0000000001110000-0x000000000117C000-memory.dmpFilesize
432KB
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memory/2568-11-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB
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memory/2568-12-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB
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memory/2568-15-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB
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memory/2568-16-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB
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memory/2784-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmpFilesize
4KB
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memory/2784-1-0x0000000001120000-0x000000000118C000-memory.dmpFilesize
432KB
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memory/2784-2-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB
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memory/2784-14-0x0000000074DC0000-0x00000000754AE000-memory.dmpFilesize
6.9MB