Overview
overview
10Static
static
10uni/Uni - ...2).exe
windows7-x64
10uni/Uni - ...2).exe
windows10-2004-x64
10uni/Uni - ...3).exe
windows7-x64
10uni/Uni - ...3).exe
windows10-2004-x64
10uni/Uni - ...4).exe
windows7-x64
10uni/Uni - ...4).exe
windows10-2004-x64
10uni/Uni - ...5).exe
windows7-x64
10uni/Uni - ...5).exe
windows10-2004-x64
10uni/Uni - ...6).exe
windows7-x64
10uni/Uni - ...6).exe
windows10-2004-x64
10uni/Uni - Copy.exe
windows7-x64
10uni/Uni - Copy.exe
windows10-2004-x64
10Analysis
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max time kernel
230s -
max time network
288s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
02-06-2024 06:22
Behavioral task
behavioral1
Sample
uni/Uni - Copy (2).exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
uni/Uni - Copy (2).exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral3
Sample
uni/Uni - Copy (3).exe
Resource
win7-20240419-en
Behavioral task
behavioral4
Sample
uni/Uni - Copy (3).exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral5
Sample
uni/Uni - Copy (4).exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
uni/Uni - Copy (4).exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral7
Sample
uni/Uni - Copy (5).exe
Resource
win7-20240221-en
Behavioral task
behavioral8
Sample
uni/Uni - Copy (5).exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral9
Sample
uni/Uni - Copy (6).exe
Resource
win7-20240221-en
Behavioral task
behavioral10
Sample
uni/Uni - Copy (6).exe
Resource
win10v2004-20240508-en
Behavioral task
behavioral11
Sample
uni/Uni - Copy.exe
Resource
win7-20231129-en
General
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Target
uni/Uni - Copy (4).exe
-
Size
409KB
-
MD5
b70fdac25a99501e3cae11f1b775249e
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SHA1
3c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
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SHA256
51ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
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SHA512
43f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44
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SSDEEP
12288:gpbJjGut6AoE3hVVdFaC/eZPTMTDlpgfJCKuMsVs:oVaurMLcDlpRKai
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
Lme7VBS3l58VwLM69PNM
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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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Processes:
schtasks.exepid process 2612 schtasks.exe 2 ip-api.com 6 api.ipify.org -
Quasar payload 3 IoCs
Processes:
resource yara_rule behavioral5/memory/1928-1-0x00000000001F0000-0x000000000025C000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar behavioral5/memory/2504-10-0x00000000000C0000-0x000000000012C000-memory.dmp family_quasar -
Executes dropped EXE 2 IoCs
Processes:
Client.exefmkyY2Kk6DMh.exepid process 2504 Client.exe 2540 fmkyY2Kk6DMh.exe -
Loads dropped DLL 2 IoCs
Processes:
Uni - Copy (4).exeClient.exepid process 1928 Uni - Copy (4).exe 2504 Client.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 2 ip-api.com 6 api.ipify.org -
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 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
SCHTASKS.exeschtasks.exeschtasks.exeSCHTASKS.exepid process 528 SCHTASKS.exe 2612 schtasks.exe 2500 schtasks.exe 2644 SCHTASKS.exe -
Modifies registry class 1 IoCs
Processes:
rundll32.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings rundll32.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
vlc.exepid process 3032 vlc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
vlc.exepid process 3032 vlc.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
Uni - Copy (4).exeClient.exeAUDIODG.EXEdescription pid process Token: SeDebugPrivilege 1928 Uni - Copy (4).exe Token: SeDebugPrivilege 2504 Client.exe Token: 33 1980 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1980 AUDIODG.EXE Token: 33 1980 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1980 AUDIODG.EXE -
Suspicious use of FindShellTrayWindow 5 IoCs
Processes:
vlc.exepid process 3032 vlc.exe 3032 vlc.exe 3032 vlc.exe 3032 vlc.exe 3032 vlc.exe -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
vlc.exepid process 3032 vlc.exe 3032 vlc.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
Client.exefmkyY2Kk6DMh.exevlc.exepid process 2504 Client.exe 2540 fmkyY2Kk6DMh.exe 3032 vlc.exe -
Suspicious use of WriteProcessMemory 37 IoCs
Processes:
Uni - Copy (4).exeClient.exewmplayer.exewmplayer.exedescription pid process target process PID 1928 wrote to memory of 2612 1928 Uni - Copy (4).exe schtasks.exe PID 1928 wrote to memory of 2612 1928 Uni - Copy (4).exe schtasks.exe PID 1928 wrote to memory of 2612 1928 Uni - Copy (4).exe schtasks.exe PID 1928 wrote to memory of 2612 1928 Uni - Copy (4).exe schtasks.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 1928 wrote to memory of 2504 1928 Uni - Copy (4).exe Client.exe PID 2504 wrote to memory of 2500 2504 Client.exe schtasks.exe PID 2504 wrote to memory of 2500 2504 Client.exe schtasks.exe PID 2504 wrote to memory of 2500 2504 Client.exe schtasks.exe PID 2504 wrote to memory of 2500 2504 Client.exe schtasks.exe PID 1928 wrote to memory of 2644 1928 Uni - Copy (4).exe SCHTASKS.exe PID 1928 wrote to memory of 2644 1928 Uni - Copy (4).exe SCHTASKS.exe PID 1928 wrote to memory of 2644 1928 Uni - Copy (4).exe SCHTASKS.exe PID 1928 wrote to memory of 2644 1928 Uni - Copy (4).exe SCHTASKS.exe PID 2504 wrote to memory of 2540 2504 Client.exe fmkyY2Kk6DMh.exe PID 2504 wrote to memory of 2540 2504 Client.exe fmkyY2Kk6DMh.exe PID 2504 wrote to memory of 2540 2504 Client.exe fmkyY2Kk6DMh.exe PID 2504 wrote to memory of 2540 2504 Client.exe fmkyY2Kk6DMh.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1628 wrote to memory of 1732 1628 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe PID 1420 wrote to memory of 2044 1420 wmplayer.exe setup_wm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (4).exe"C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (4).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\uni\Uni - Copy (4).exe" /rl HIGHEST /f2⤵
- Quasar RAT
- 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
- Loads dropped DLL
- 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:\Users\Admin\AppData\Local\Temp\fmkyY2Kk6DMh.exe"C:\Users\Admin\AppData\Local\Temp\fmkyY2Kk6DMh.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77Client.exe" /tr "'C:\Users\Admin\AppData\Roaming\SubDir\Client.exe'" /sc onlogon /rl HIGHEST3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77Uni - Copy (4).exe" /tr "'C:\Users\Admin\AppData\Local\Temp\uni\Uni - Copy (4).exe'" /sc onlogon /rl HIGHEST2⤵
- Creates scheduled task(s)
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x5741⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:11⤵
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Windows Media Player\setup_wm.exe"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:12⤵
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:11⤵
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Windows Media Player\setup_wm.exe"C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:12⤵
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C:\Windows\system32\rundll32.exe"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\Desktop\ImportInitialize.bin1⤵
- Modifies registry class
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}1⤵
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\ConvertMount.TTS"1⤵
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\Desktop\EnterSubmit.bat" "1⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\fmkyY2Kk6DMh.exeFilesize
277KB
MD5dac0c5b2380cbdd93b46763427c9f8df
SHA1038089e1a0ac8375be797fc3ce7ae719abc72834
SHA256d02538788fb57f568ece292f5fc20e9775c86d504de67f57e22534f84adc73c6
SHA51205cc1f6bf25a6545a06c735ae7a4a7fc25489bdb9fbc8d5797be623982662c4a93cba2d20bfe14313ef1548eaaa691e55fabdd8e3d3e45de9ab42dc62f9a7023
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C:\Users\Admin\AppData\Local\Temp\tmp26114.WMC\allservices.xmlFilesize
546B
MD5df03e65b8e082f24dab09c57bc9c6241
SHA16b0dacbf38744c9a381830e6a5dc4c71bd7cedbf
SHA256155b9c588061c71832af329fafa5678835d9153b8fbb7592195ae953d0c455ba
SHA512ef1cc8d27fbc5da5daab854c933d3914b84ee539d4d2f0126dc1a04a830c5599e39a923c80257653638b1b99b0073a7174cc164be5887181730883c752ba2f99
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C:\Users\Admin\AppData\Local\Temp\tmp27393.WMC\serviceinfo.xmlFilesize
523B
MD5d58da90d6dc51f97cb84dfbffe2b2300
SHA15f86b06b992a3146cb698a99932ead57a5ec4666
SHA25693acdb79543d9248ca3fca661f3ac287e6004e4b3dafd79d4c4070794ffbf2ad
SHA5127f1e95e5aa4c8a0e4c967135c78f22f4505f2a48bbc619924d0096bf4a94d469389b9e8488c12edacfba819517b8376546687d1145660ad1f49d8c20a744e636
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeFilesize
409KB
MD5b70fdac25a99501e3cae11f1b775249e
SHA13c59226479bfdcd1b2927bcfb1a7516d4cb8dd71
SHA25651ff3eb450a786c1aaa75ff889f2fd256412a7b75d04277fdf9fcccc20e57246
SHA51243f0d5d6e5f0d5febba537c109ffdbc250bbb6e9725e635a43ec975b0353048eaeee50b6e9274cd5e072ea6b0cea32439bd37408b2528832f467f2075f74ca44
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memory/1928-1-0x00000000001F0000-0x000000000025C000-memory.dmpFilesize
432KB
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memory/1928-2-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
-
memory/1928-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmpFilesize
4KB
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memory/1928-13-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-12-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-16-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-15-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-167-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-11-0x0000000073FF0000-0x00000000746DE000-memory.dmpFilesize
6.9MB
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memory/2504-10-0x00000000000C0000-0x000000000012C000-memory.dmpFilesize
432KB
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memory/3032-31-0x000007FEF64E0000-0x000007FEF64F1000-memory.dmpFilesize
68KB
-
memory/3032-35-0x000007FEF4830000-0x000007FEF58DB000-memory.dmpFilesize
16.7MB
-
memory/3032-33-0x000007FEF58E0000-0x000007FEF58FD000-memory.dmpFilesize
116KB
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memory/3032-29-0x000007FEF7080000-0x000007FEF7098000-memory.dmpFilesize
96KB
-
memory/3032-34-0x000007FEF59B0000-0x000007FEF59C1000-memory.dmpFilesize
68KB
-
memory/3032-28-0x000007FEF60B0000-0x000007FEF6364000-memory.dmpFilesize
2.7MB
-
memory/3032-36-0x000007FEF4730000-0x000007FEF4797000-memory.dmpFilesize
412KB
-
memory/3032-32-0x000007FEF5950000-0x000007FEF5967000-memory.dmpFilesize
92KB
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memory/3032-30-0x000007FEF6FD0000-0x000007FEF6FE7000-memory.dmpFilesize
92KB
-
memory/3032-26-0x000000013FAC0000-0x000000013FBB8000-memory.dmpFilesize
992KB
-
memory/3032-56-0x000007FEF4830000-0x000007FEF58DB000-memory.dmpFilesize
16.7MB
-
memory/3032-67-0x000007FEF4830000-0x000007FEF58DB000-memory.dmpFilesize
16.7MB
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memory/3032-78-0x000007FEF4830000-0x000007FEF58DB000-memory.dmpFilesize
16.7MB
-
memory/3032-89-0x000007FEF4830000-0x000007FEF58DB000-memory.dmpFilesize
16.7MB
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memory/3032-27-0x000007FEF6370000-0x000007FEF63A4000-memory.dmpFilesize
208KB