Analysis
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max time kernel
0s -
max time network
28s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
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submitted
16-05-2024 17:48
General
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Target
Oski Cracked.exe
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Size
4.5MB
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MD5
a52baa5b64635eec7c7b888bff016aac
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SHA1
a86b895b483df3c657553f498ebcd9c97b89415f
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SHA256
cd986b32c220cc04c9feb5e42a393fb34efc884d176e6d8d266e54ac4840cfa3
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SHA512
bed140ed03ed4b5da82edf1139eced7c84a56fe75f5a8926002414ed0b8f25fbb6cbf9e3111ff6d9b5d942382be331a674f17cf10b2150f171f32276ad4b3980
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SSDEEP
98304:iJCbuSMburCaMZh0yEKj+WRvrY1dcZ048HV/bFy8jJ7APB:8mMbuQZlFY7KsZPNA
Malware Config
Extracted
quasar
2.1.0.0
VILVA V3
67.213.221.18:7812
VNM_MUTEX_DR6NAzaayWgRGuLNpp
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encryption_key
izGdDJVzqIzRDlXcooB4
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install_name
Windows Defender Security.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Windows Service
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subdirectory
WindowsDir
Signatures
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Contains code to disable Windows Defender 2 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Oski
Oski is an infostealer targeting browser data, crypto wallets.
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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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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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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes
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C:\Users\Admin\AppData\Local\Temp\Oski Cracked.exe"C:\Users\Admin\AppData\Local\Temp\Oski Cracked.exe"1⤵
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C:\Users\Admin\AppData\Roaming\Windows Security.exe"C:\Users\Admin\AppData\Roaming\Windows Security.exe"2⤵
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Windows Service" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Windows Security.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\WindowsDir\Windows Defender Security.exe"C:\Users\Admin\AppData\Roaming\WindowsDir\Windows Defender Security.exe"3⤵
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "Windows Service" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsDir\Windows Defender Security.exe" /rl HIGHEST /f4⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Get-MpPreference -verbose3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit3⤵
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*4⤵
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C:\Users\Admin\AppData\Roaming\Oski Cracked.exe"C:\Users\Admin\AppData\Roaming\Oski Cracked.exe"2⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1.3MB
MD5ff1d737b2fc98d95286ff7b3a60398ac
SHA16b0534f50e7ff18dd560d63577ce6d3b4aeef920
SHA2566c164f752c05a9ecfd49bb1ee95d41a32506b55598968fe2049f9f98d76ab342
SHA5127dff7ddbab978504383dea55e79206bf81ae64a52863351925af306f13ea0d95e4acd9f7ff295747d82d4e6e7c6f9a062bc2864cb90f71a71c45a067fdf62456
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Filesize
448KB
MD5d6f3aa7f5a5a24108b03aa05f63c5b45
SHA1598fa1c97916171f354a5b1b282205d9deeb7bf5
SHA25618aacee9707f468ec55101a81e2acd7886c14ec52144839472f5cf8c4d409134
SHA5127e009f48c26c9b0b1b03531d232041392164fee64025692f173f648d02fc511dcf05a8c91c69ac38f1b3e35a12b7fad98c2284d163d469c436b7947016e76738
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Filesize
1.5MB
MD57c05cfbc906e9a9233cc02699f98f69f
SHA105715bf9dc07eea578e330b084b900f118d799de
SHA2567f0a68f3c73c980b16e04ac8ae43524ab8d83aabc0486b0a8335bb2224b13053
SHA512ba243ba1a00accaacfbbbf63b317fd938b7c24399d2cea8c2a5546ff53eb29b1ba183a21f4cd36062fc901474d15265b658d97f1efabd49fd239bbd2722b5fa2
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Filesize
534KB
MD5deb0b7c057e00267baf93d2be0fd5e9f
SHA10938426efa7763dde948ce903b46bc88c7f8bf04
SHA256401d7686d9400875f1ee068006e7142c1bdc1108d4ddb3113924dddb312be7d5
SHA512e9d5986b49339fb99703d34743fec5a6522e4c2d05a81a818d58c9f15a1144d338058ebdb3076f5a683cd5bf03d01ac50156f2063450d4955f7cf854b2d1869e
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
4KB
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Filesize
560KB
-
Filesize
240KB
-
Filesize
64KB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
4KB
-
Filesize
408KB
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Filesize
72KB
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Filesize
4KB
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Filesize
64KB
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Filesize
40KB
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Filesize
64KB
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Filesize
4.0MB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
64KB
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Filesize
8KB
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Filesize
10.8MB
-
Filesize
4.1MB
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Filesize
6.2MB
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Filesize
600KB
-
Filesize
652KB
-
Filesize
120KB
-
Filesize
200KB
-
Filesize
104KB
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Filesize
6.5MB
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Filesize
40KB
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Filesize
304KB
-
Filesize
304KB
-
Filesize
68KB
-
Filesize
80KB
-
Filesize
32KB
-
Filesize
104KB
-
Filesize
56KB
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Filesize
120KB
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Filesize
3.3MB
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Filesize
408KB
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Filesize
136KB
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Filesize
216KB