Analysis
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max time kernel
41s -
max time network
54s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
30-06-2024 08:22
Static task
static1
Behavioral task
behavioral1
Sample
0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe
Resource
win10v2004-20240226-en
General
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Target
0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe
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Size
2.2MB
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MD5
f1c9110109b2fd30e8c3459f39951e05
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SHA1
9f491e668a43cb359258a130ec009a61b5834262
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SHA256
0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2
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SHA512
4fe4b5aadd50e8821eb151deff5e63b075b374ce4573afdaa631d963bbd2c3b7e1244ef1860e4db3e539ac4061ef71e66fad5729952d4441883a258f9989e28f
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SSDEEP
49152:qpjNvr9ySAOmw49HHO+SASagXkJr4MDkUwm:qpjNp7p49HH8n5A
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 behavioral2/memory/4476-1-0x00000000040A0000-0x00000000041B0000-memory.dmp family_vidar_v7 behavioral2/memory/4480-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/4480-15-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat64D4.tmppid process 4480 kat64D4.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:
0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exedescription pid process target process PID 4476 set thread context of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.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:
kat64D4.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat64D4.tmp Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat64D4.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 2948 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat64D4.tmppid process 4480 kat64D4.tmp 4480 kat64D4.tmp 4480 kat64D4.tmp 4480 kat64D4.tmp 4480 kat64D4.tmp 4480 kat64D4.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exekat64D4.tmpcmd.exedescription pid process target process PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4476 wrote to memory of 4480 4476 0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe kat64D4.tmp PID 4480 wrote to memory of 2916 4480 kat64D4.tmp cmd.exe PID 4480 wrote to memory of 2916 4480 kat64D4.tmp cmd.exe PID 4480 wrote to memory of 2916 4480 kat64D4.tmp cmd.exe PID 2916 wrote to memory of 2948 2916 cmd.exe timeout.exe PID 2916 wrote to memory of 2948 2916 cmd.exe timeout.exe PID 2916 wrote to memory of 2948 2916 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe"C:\Users\Admin\AppData\Local\Temp\0a4d9c9562ed56dbbfce3bd2e9a67d5e3e8b62e12dc3b1a337204325619ad0e2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat64D4.tmpC:\Users\Admin\AppData\Local\Temp\kat64D4.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat64D4.tmp" & rd /s /q "C:\ProgramData\GIIIIJDHJEGI" & exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\kat64D4.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/4476-0-0x00000000024A0000-0x00000000024A1000-memory.dmpFilesize
4KB
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memory/4476-1-0x00000000040A0000-0x00000000041B0000-memory.dmpFilesize
1.1MB
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memory/4476-10-0x0000000000400000-0x0000000000635000-memory.dmpFilesize
2.2MB
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memory/4480-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/4480-15-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB