Analysis
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max time kernel
128s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 03:19
Static task
static1
Behavioral task
behavioral1
Sample
aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe
Resource
win10v2004-20240611-en
General
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Target
aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe
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Size
2.2MB
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MD5
81dbd3af34ebc2b7351c2a0b751fec14
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SHA1
c50872165567036b8fa6a2413061db88a82a154b
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SHA256
aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21
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SHA512
c15a332542c217d42ee8d6fc4309bf06e46f75f671c111d5fea01b31b55e103f575d16904c1344b43d4287791cad3961c4f947aec5aa20487e42bab53482dbfa
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SSDEEP
49152:qpjNvr9ySAOmw4tHHO+SASagXkJr4MDkUwm:qpjNp7p4tHH8n5A
Malware Config
Extracted
vidar
https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
Signatures
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Detect Vidar Stealer 16 IoCs
Processes:
resource yara_rule behavioral1/memory/1472-1-0x00000000029E0000-0x0000000002AF0000-memory.dmp family_vidar_v7 behavioral1/memory/2680-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-22-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-23-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-33-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-34-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-42-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-43-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-59-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-60-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-71-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-72-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2680-76-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat29CF.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation kat29CF.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat29CF.tmppid process 2680 kat29CF.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exedescription pid process target process PID 1472 set thread context of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat29CF.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat29CF.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat29CF.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 3988 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
Processes:
kat29CF.tmppid process 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp 2680 kat29CF.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exekat29CF.tmpcmd.exedescription pid process target process PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 1472 wrote to memory of 2680 1472 aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe kat29CF.tmp PID 2680 wrote to memory of 3416 2680 kat29CF.tmp cmd.exe PID 2680 wrote to memory of 3416 2680 kat29CF.tmp cmd.exe PID 2680 wrote to memory of 3416 2680 kat29CF.tmp cmd.exe PID 3416 wrote to memory of 3988 3416 cmd.exe timeout.exe PID 3416 wrote to memory of 3988 3416 cmd.exe timeout.exe PID 3416 wrote to memory of 3988 3416 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe"C:\Users\Admin\AppData\Local\Temp\aa2661bda5901e33e47a8f13acf4c150c9ce93d14ddc5ba5a7df2aec375cfd21.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Users\Admin\AppData\Local\Temp\kat29CF.tmpC:\Users\Admin\AppData\Local\Temp\kat29CF.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2680 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat29CF.tmp" & rd /s /q "C:\ProgramData\BFBGHDGCFHID" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:3416 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:3988
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f