Analysis
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max time kernel
147s -
max time network
150s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
25/06/2024, 04:08
Static task
static1
Behavioral task
behavioral1
Sample
e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe
Resource
win10v2004-20240611-en
General
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Target
e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe
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Size
2.1MB
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MD5
f39dcdd9393660d9b67580aac9c7561f
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SHA1
d489da27d4e8d71210fc098a7e0071f364739e60
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SHA256
e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673
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SHA512
ca77b538f47a75e2616700cc6b51855ad8c0e2739fef2158b50fd6799d35a7c98a3271bbc883c6d67136b43782badb251a4f4f331acc112edcf91b8c653a44e6
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SSDEEP
24576:cC/gyrgOo5VvmUfq+Zc1Fsuqf9sPUfMxVVtes12FxwojKr98YGeGGHzqqikY+rPN:c3xbZcjHPUkxVVChjHZQHzqZ+rPlV
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
resource yara_rule behavioral2/memory/4176-1-0x0000000002C90000-0x0000000002DA0000-memory.dmp family_vidar_v7 behavioral2/memory/2964-4-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-8-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-10-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-24-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-25-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-35-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-36-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-44-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-45-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-61-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-62-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-73-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-74-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-75-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 behavioral2/memory/2964-78-0x0000000000400000-0x0000000000648000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
pid Process 2964 kat5E4C.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
description pid Process procid_target PID 4176 set thread context of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 kat5E4C.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5E4C.tmp -
Delays execution with timeout.exe 1 IoCs
pid Process 1800 timeout.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp 2964 kat5E4C.tmp -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 4176 wrote to memory of 2964 4176 e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe 80 PID 2964 wrote to memory of 3576 2964 kat5E4C.tmp 83 PID 2964 wrote to memory of 3576 2964 kat5E4C.tmp 83 PID 2964 wrote to memory of 3576 2964 kat5E4C.tmp 83 PID 3576 wrote to memory of 1800 3576 cmd.exe 85 PID 3576 wrote to memory of 1800 3576 cmd.exe 85 PID 3576 wrote to memory of 1800 3576 cmd.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe"C:\Users\Admin\AppData\Local\Temp\e79b5c3bd34c9a760695a543fde2455d4c21187705cb0f6bceb11e64a9705673.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Users\Admin\AppData\Local\Temp\kat5E4C.tmpC:\Users\Admin\AppData\Local\Temp\kat5E4C.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5E4C.tmp" & rd /s /q "C:\ProgramData\GHJDBAKEHDHD" & exit3⤵
- Suspicious use of WriteProcessMemory
PID:3576 -
C:\Windows\SysWOW64\timeout.exetimeout /t 104⤵
- Delays execution with timeout.exe
PID:1800
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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