Analysis
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max time kernel
142s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
25-05-2024 01:08
Static task
static1
Behavioral task
behavioral1
Sample
f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe
Resource
win10v2004-20240226-en
General
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Target
f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe
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Size
2.0MB
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MD5
d7f77d42a23132970939cae13e3c69e4
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SHA1
97c97a856ea50ec95b8a03d18a85ea9ddd1be9ab
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SHA256
f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264
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SHA512
dd3b25ef014ffca945ad64e6f630e186f3f9488c69c4ccb47e26d1c5ddd0de0b495492e9c96d807e4563c7978e1d1480738fe8c871fb2fb44339580dbf59f586
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SSDEEP
49152:s4K3x1vUqJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18qtIuoITsdZ
Malware Config
Extracted
stealc
Extracted
vidar
https://steamcommunity.com/profiles/76561199689717899
https://t.me/copterwin
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0
Signatures
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Detect Vidar Stealer 9 IoCs
Processes:
resource yara_rule behavioral1/memory/4900-1-0x0000000004170000-0x00000000042B9000-memory.dmp family_vidar_v7 behavioral1/memory/2344-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-9-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-16-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/2344-34-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
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Executes dropped EXE 1 IoCs
Processes:
kat1325.tmppid process 2344 kat1325.tmp -
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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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:
f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exedescription pid process target process PID 4900 set thread context of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat1325.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat1325.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat1325.tmppid process 2344 kat1325.tmp 2344 kat1325.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exedescription pid process target process PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp PID 4900 wrote to memory of 2344 4900 f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe kat1325.tmp
Processes
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C:\Users\Admin\AppData\Local\Temp\f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe"C:\Users\Admin\AppData\Local\Temp\f56d7ba5982b2c5f840b01077df9686a2aa9aac03148b82924402ec18cd05264.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\kat1325.tmpC:\Users\Admin\AppData\Local\Temp\kat1325.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=2720 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\kat1325.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
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memory/2344-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-9-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-16-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-18-0x000000001B850000-0x000000001BAAF000-memory.dmpFilesize
2.4MB
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memory/2344-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/2344-34-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
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memory/4900-1-0x0000000004170000-0x00000000042B9000-memory.dmpFilesize
1.3MB
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memory/4900-8-0x0000000000400000-0x000000000060C000-memory.dmpFilesize
2.0MB
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memory/4900-0-0x00000000024A0000-0x00000000024A1000-memory.dmpFilesize
4KB