Analysis
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max time kernel
146s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240508-en -
resource tags
arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system -
submitted
01-07-2024 12:11
Static task
static1
Behavioral task
behavioral1
Sample
56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe
Resource
win10v2004-20240226-en
General
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Target
56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe
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Size
2.2MB
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MD5
ed86014e814d7c6bfedde4508716e2cc
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SHA1
5ce8912970da8592ef714817215943e409dd8722
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SHA256
56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3
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SHA512
e088adb1cbcadb67d0bdd205b87b10c48dfb6b732fcdfc0d022faee84ff2f2b1f4c114fa7371e5089ae24079036f55eff2e923161d5e48e8ce27c03b39b780c4
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SSDEEP
24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX7wU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPD21tuuIeNHYGY0LzjsJxK
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/1056-1-0x0000000004240000-0x0000000004353000-memory.dmp family_vidar_v7 behavioral2/memory/3460-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-9-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-11-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-12-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-13-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-14-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/3460-17-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Executes dropped EXE 1 IoCs
Processes:
kat7271.tmppid process 3460 kat7271.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:
56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exedescription pid process target process PID 1056 set thread context of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.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:
kat7271.tmpdescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat7271.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat7271.tmp -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 4708 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
kat7271.tmppid process 3460 kat7271.tmp 3460 kat7271.tmp 3460 kat7271.tmp 3460 kat7271.tmp 3460 kat7271.tmp 3460 kat7271.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exekat7271.tmpcmd.exedescription pid process target process PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 1056 wrote to memory of 3460 1056 56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe kat7271.tmp PID 3460 wrote to memory of 4376 3460 kat7271.tmp cmd.exe PID 3460 wrote to memory of 4376 3460 kat7271.tmp cmd.exe PID 3460 wrote to memory of 4376 3460 kat7271.tmp cmd.exe PID 4376 wrote to memory of 4708 4376 cmd.exe timeout.exe PID 4376 wrote to memory of 4708 4376 cmd.exe timeout.exe PID 4376 wrote to memory of 4708 4376 cmd.exe timeout.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe"C:\Users\Admin\AppData\Local\Temp\56a090cab5f62687ddd9b8a9b2c397c473cc46122f611b3f1c7c4f6b8724a2c3.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat7271.tmpC:\Users\Admin\AppData\Local\Temp\kat7271.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\kat7271.tmp" & rd /s /q "C:\ProgramData\CFCFCAAAAFBA" & 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\kat7271.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/1056-0-0x00000000024E0000-0x00000000024E1000-memory.dmpFilesize
4KB
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memory/1056-1-0x0000000004240000-0x0000000004353000-memory.dmpFilesize
1.1MB
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memory/1056-10-0x0000000000400000-0x0000000000641000-memory.dmpFilesize
2.3MB
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memory/3460-4-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-9-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-8-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-11-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-12-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-13-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-14-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB
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memory/3460-17-0x0000000000400000-0x0000000000648000-memory.dmpFilesize
2.3MB