Analysis
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max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
29-06-2024 00:22
Static task
static1
Behavioral task
behavioral1
Sample
159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe
Resource
win10v2004-20240508-en
General
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Target
159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe
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Size
2.2MB
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MD5
dee45b3ad0c841d54049061df5775ec0
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SHA1
6fcbcf0d362d83ac346576ec8ba66b0cb3f1b4fd
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SHA256
159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c
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SHA512
df3adca29d98c6bacbb9ecec498425f72a722aab2f187231689f5b7b959d8fa8b561ff0846ee0c8a495b204e6445305bbe56063672512f27369adba3e39978f2
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SSDEEP
49152:qpjNvr9ySAOmw4FHHO+SASagXkJr4MDkUwm:qpjNp7p4FHH8n5A
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 9 IoCs
Processes:
resource yara_rule behavioral1/memory/216-1-0x0000000004000000-0x0000000004110000-memory.dmp family_vidar_v7 behavioral1/memory/2176-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral1/memory/2176-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
kat72BF.tmpdescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation kat72BF.tmp -
Executes dropped EXE 1 IoCs
Processes:
kat72BF.tmppid process 2176 kat72BF.tmp -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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:
159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exedescription pid process target process PID 216 set thread context of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.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:
kat72BF.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat72BF.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat72BF.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1588 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat72BF.tmppid process 2176 kat72BF.tmp 2176 kat72BF.tmp 2176 kat72BF.tmp 2176 kat72BF.tmp 2176 kat72BF.tmp 2176 kat72BF.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exekat72BF.tmpcmd.exedescription pid process target process PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 216 wrote to memory of 2176 216 159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe kat72BF.tmp PID 2176 wrote to memory of 4516 2176 kat72BF.tmp cmd.exe PID 2176 wrote to memory of 4516 2176 kat72BF.tmp cmd.exe PID 2176 wrote to memory of 4516 2176 kat72BF.tmp cmd.exe PID 4516 wrote to memory of 1588 4516 cmd.exe timeout.exe PID 4516 wrote to memory of 1588 4516 cmd.exe timeout.exe PID 4516 wrote to memory of 1588 4516 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe"C:\Users\Admin\AppData\Local\Temp\159e547225b9f035bf95279055d66810149fa93debea660766552008271e3e5c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\AppData\Local\Temp\kat72BF.tmpC:\Users\Admin\AppData\Local\Temp\kat72BF.tmp2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2176 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat72BF.tmp" & rd /s /q "C:\ProgramData\CFCBAAEBKEGH" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4516 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1588
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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