Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
21-05-2024 07:01
General
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Target
Uni.exe
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Size
409KB
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MD5
7544e8e688461810abd5387160692c95
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SHA1
bb41e11803d0da2fb7f6e2068220ddd3faf347c7
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SHA256
6da2005775980d44d0a6f9d8f12d7394e8d81abf96f444a6c4da54c2376430a0
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SHA512
09ffe73cc108762af47e68fb9f72ab37051cda10aec048cd9cb86c65c68696622bd7e24c12b0c07ebc2e8a0620865fc9a35b2ef34d48c3d8522d57cd672ec287
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SSDEEP
6144:MMfPp5S6M1Xy0gmfnF8V0dguFJSSvbaU01T/yUhAd5GbdQNJ:Bpg6M1i9mfnFUEgctoLILGbdQf
Malware Config
Extracted
quasar
3.1.5
SeroXen
panel-slave.gl.at.ply.gg:57059
$Sxr-rpL8EItHN3pqIQQVy2
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encryption_key
p81Z0Zy4AcToBvsDk4Li
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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 RAT
Quasar is an open source Remote Access Tool.
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Quasar payload 2 IoCs
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Executes dropped EXE 1 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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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.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 52 IoCs
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Suspicious use of AdjustPrivilegeToken 7 IoCs
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Suspicious use of FindShellTrayWindow 64 IoCs
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Suspicious use of SendNotifyMessage 64 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Uni.exe"C:\Users\Admin\AppData\Local\Temp\Uni.exe"1⤵
- 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\Uni.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 "$77Uni.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Uni.exe'" /sc onlogon /rl HIGHEST2⤵
- Creates scheduled task(s)
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeFilesize
409KB
MD57544e8e688461810abd5387160692c95
SHA1bb41e11803d0da2fb7f6e2068220ddd3faf347c7
SHA2566da2005775980d44d0a6f9d8f12d7394e8d81abf96f444a6c4da54c2376430a0
SHA51209ffe73cc108762af47e68fb9f72ab37051cda10aec048cd9cb86c65c68696622bd7e24c12b0c07ebc2e8a0620865fc9a35b2ef34d48c3d8522d57cd672ec287
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C:\Windows\System32\cwwwvr.exeFilesize
7.2MB
MD5f6d8913637f1d5d2dc846de70ce02dc5
SHA15fc9c6ab334db1f875fbc59a03f5506c478c6c3e
SHA2564e72ca1baee2c7c0f50a42614d101159a9c653a8d6f7498f7bf9d7026c24c187
SHA51221217a0a0eca58fc6058101aa69cf30d5dbe419c21fa7a160f44d8ebbcf5f4011203542c8f400a9bb8ee3826706417f2939c402f605817df597b7ff812b43036
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memory/1640-33-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/1640-32-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/1640-18-0x0000000006510000-0x000000000651A000-memory.dmpFilesize
40KB
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memory/1640-14-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/1640-13-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/3488-29-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-27-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-25-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-26-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-28-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-30-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-21-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-20-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-19-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/3488-31-0x0000018C084D0000-0x0000018C084D1000-memory.dmpFilesize
4KB
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memory/4584-4-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/4584-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmpFilesize
4KB
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memory/4584-16-0x0000000074AF0000-0x00000000752A0000-memory.dmpFilesize
7.7MB
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memory/4584-7-0x0000000006290000-0x00000000062CC000-memory.dmpFilesize
240KB
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memory/4584-5-0x0000000005120000-0x0000000005186000-memory.dmpFilesize
408KB
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memory/4584-6-0x00000000056A0000-0x00000000056B2000-memory.dmpFilesize
72KB
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memory/4584-3-0x0000000005080000-0x0000000005112000-memory.dmpFilesize
584KB
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memory/4584-2-0x0000000005760000-0x0000000005D04000-memory.dmpFilesize
5.6MB
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memory/4584-1-0x00000000005D0000-0x000000000063C000-memory.dmpFilesize
432KB