Overview
overview
10Static
static
7WezoAutoUP.exe
windows7-x64
7WezoAutoUP.exe
windows10-2004-x64
7culclientUp.exe
windows7-x64
7culclientUp.exe
windows10-2004-x64
7software.exe
windows7-x64
10software.exe
windows10-2004-x64
10vncDbnt.exe
windows7-x64
8vncDbnt.exe
windows10-2004-x64
8wzoptup.exe
windows7-x64
7wzoptup.exe
windows10-2004-x64
7Analysis
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max time kernel
121s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
06-07-2024 00:56
Behavioral task
behavioral1
Sample
WezoAutoUP.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
WezoAutoUP.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral3
Sample
culclientUp.exe
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
culclientUp.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral5
Sample
software.exe
Resource
win7-20240705-en
Behavioral task
behavioral6
Sample
software.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral7
Sample
vncDbnt.exe
Resource
win7-20240508-en
Behavioral task
behavioral8
Sample
vncDbnt.exe
Resource
win10v2004-20240704-en
Behavioral task
behavioral9
Sample
wzoptup.exe
Resource
win7-20240705-en
Behavioral task
behavioral10
Sample
wzoptup.exe
Resource
win10v2004-20240704-en
General
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Target
software.exe
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Size
5.5MB
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MD5
1ed6f9d578e14edad0bf47edf1f6269f
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SHA1
0e6546d7a7f237a4c094e24810fd4ab29ab6a970
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SHA256
83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3
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SHA512
7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60
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SSDEEP
98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl
Malware Config
Extracted
vidar
https://t.me/bu77un
https://steamcommunity.com/profiles/76561199730044335
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1
Signatures
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Detect Vidar Stealer 2 IoCs
Processes:
resource yara_rule behavioral5/memory/2984-80-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral5/memory/2984-560-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
GDGIJECGDG.exepid process 1688 GDGIJECGDG.exe -
Loads dropped DLL 6 IoCs
Processes:
MSBuild.exeWerFault.exepid process 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 1008 WerFault.exe 1008 WerFault.exe 1008 WerFault.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Suspicious use of SetThreadContext 1 IoCs
Processes:
software.exedescription pid process target process PID 3048 set thread context of 2984 3048 software.exe MSBuild.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1008 1688 WerFault.exe GDGIJECGDG.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MSBuild.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MSBuild.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString MSBuild.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1348 timeout.exe -
Suspicious behavior: EnumeratesProcesses 22 IoCs
Processes:
MSBuild.exepid process 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe 2984 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
software.exedescription pid process Token: SeDebugPrivilege 3048 software.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
software.exeMSBuild.exeGDGIJECGDG.execmd.exedescription pid process target process PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 3048 wrote to memory of 2984 3048 software.exe MSBuild.exe PID 2984 wrote to memory of 1688 2984 MSBuild.exe GDGIJECGDG.exe PID 2984 wrote to memory of 1688 2984 MSBuild.exe GDGIJECGDG.exe PID 2984 wrote to memory of 1688 2984 MSBuild.exe GDGIJECGDG.exe PID 2984 wrote to memory of 1688 2984 MSBuild.exe GDGIJECGDG.exe PID 1688 wrote to memory of 1008 1688 GDGIJECGDG.exe WerFault.exe PID 1688 wrote to memory of 1008 1688 GDGIJECGDG.exe WerFault.exe PID 1688 wrote to memory of 1008 1688 GDGIJECGDG.exe WerFault.exe PID 1688 wrote to memory of 1008 1688 GDGIJECGDG.exe WerFault.exe PID 2984 wrote to memory of 572 2984 MSBuild.exe cmd.exe PID 2984 wrote to memory of 572 2984 MSBuild.exe cmd.exe PID 2984 wrote to memory of 572 2984 MSBuild.exe cmd.exe PID 2984 wrote to memory of 572 2984 MSBuild.exe cmd.exe PID 572 wrote to memory of 1348 572 cmd.exe timeout.exe PID 572 wrote to memory of 1348 572 cmd.exe timeout.exe PID 572 wrote to memory of 1348 572 cmd.exe timeout.exe PID 572 wrote to memory of 1348 572 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\software.exe"C:\Users\Admin\AppData\Local\Temp\software.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\ProgramData\GDGIJECGDG.exe"C:\ProgramData\GDGIJECGDG.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 964⤵
- Loads dropped DLL
- Program crash
PID:1008
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGIDAAFIEHIE" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:572 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1348
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
937KB
MD5168c5908924803d268d26965c32a5620
SHA19e0e2dc9c7e931c4ee860c32d83711c433f7b1a3
SHA2562fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449
SHA512749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b